Wednesday, July 07, 2021

Fecal analysis reveals snow leopard stress levels


Researchers have devised a way to measure physical stress in snow leopards, like the one pictured lounging at Kobe Oji Zoo in Japan, in the hope it will help conservation planning for the "vulnerable" species. Photo by Kodzue Kinoshita

July 7 (UPI) -- The world is a stressful place these days, especially for snow leopards.

Environmental stressors, like rising temperatures, disappearing glaciers and poaching, can negatively impact snow leopard health.

To monitor the hormonal stress levels of snow leopards, scientists in Japan developed a new method for analyzing snow leopard fecal samples.

The new method -- described Wednesday in the journal Methods in Ecology and Evolution -- can be performed quickly and easily in the field.

RELATED Snow leopards no longer 'endangered,' conservationists rule

"Because conventional hormone monitoring methods require frozen and refrigerated chemical reagents, and laboratory equipment, it is almost impossible to use them on-site." lead study author Kodzue Kinoshita, researcher at Kyoto University, said in a press release.

To perform the new hormonal analysis method, scientists collect a snow leopard's fecal samples, place it in a container with ethanol and shake the container by hand. Researchers then dip test strips into the solution.

After exposure, hormonal concentrations trapped on the test strips are analyzed using a smart phone application.

RELATED New disease threats pose danger to snow leopard population

The process relies on immunochromatography, the same hormonal analysis technology used in pregnancy tests.

Researchers tested the accuracy of the new technology using fecal samples from captive snow leopards at Kohu Yuki Zoo, Asahikawa City Asahiyama Zoo and Nagoya Higashiyama Zoo and Botanical Gardens in Japan.

Because environmental stressors can depress reproductive success, it's helpful for conservation scientists to be able to track hormonal changes in snow leopard populations.

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Snow leopards are listed as "vulnerable" by the International Union for Conservation of Nature.

Over the last several decades, warming temperatures have shrunk the snow leopard's range, which is mainly among the mountains of Central and South Asia.

The feline predators are also threatened by poachers, as well as farmers who sometimes carry out retaliatory killings for livestock attacks.

"Simple methods like this, will allow researchers, rangers and zookeepers, to quickly and easily assess the stress status of snow leopards." said Kinoshita. "Getting this insight will be useful for the management of animal welfare and conservation planning."

The researchers suggest their new test could be adapted to analyze hormonal changes in a variety of species, both captive and wild animals.

"As a next step, I would like to apply this method to various other animals and make it more reliable." said Kinoshita. "I would also like to apply it to not only wild animals, but also to zoo animals and pets to clarify the stress of these animals and improve their living environment."

New method lets researchers rapidly monitor snow leopard stress levels in the wild

BRITISH ECOLOGICAL SOCIETY



VIDEO: CAMERA TRAP OF A SNOW LEOPARD IN KYRGYZSTAN. view more 

The newly developed method lets researchers rapidly and accurately measure stress hormones in snow leopards without the need for bulky equipment or specialised knowledge. It uses widely available equipment that can be carried into the field, allowing hormone extraction from faecal samples and analysis to be done on site.

This differs from existing approaches to hormone monitoring in wild animals, where faecal samples must be taken to laboratories for hormone extraction and analysis. These approaches are particularly limiting in remote locations, such as the Himalayas.

"Because conventional hormone monitoring methods require frozen and refrigerated chemical reagents, and laboratory equipment, it is almost impossible to use them on-site." explained Dr Kodzue Kinoshita of Kyoto University and author of the study.

The new method developed by Dr Kinoshita extracts hormones from snow leopard faeces by shaking a container with the sample mixed with ethanol by hand. A process called immunochromatography, which is used in pregnancy tests, is used to detect hormone concentrations using test strips and a smartphone application then analyses them.

The accuracy of the new method was tested on faecal samples from captive snow leopards at Kohu Yuki Zoo, Asahikawa City Asahiyama Zoo, and Nagoya Higashiyama Zoo and Botanical Gardens in Japan. Comparisons to conventional methods found that similar hormone concentrations were extracted and changes in these concentrations were also accurately detected.

Stress in animals can be associated with reduced reproductive function, so finding out what in the environment stresses animals is important for conservation.

"Simple methods like this, will allow researchers, rangers, and zookeepers, to quickly and easily assess the stress status of snow leopards." said Dr Kinoshita. "Getting this insight will be useful for the management of animal welfare and conservation planning."

Dr Kinoshita added that the new technique could also be applied to captive snow leopards and other animals. "The hormone analysed in this method is generally not species-specific, so this method can be used to assess various species, including domestic, experimental, zoo, and wild animals."

Snow leopards are listed as 'vulnerable' on the IUCN red list and are threatened by poaching, retaliatory killings for livestock attacks and climate change. It's feared these continued pressures will increase stress in snow leopards, further contributing to population declines.

Snow leopards are also notoriously difficult to study, the mountainous regions in central Asia they inhabit make finding the big cats hard and limits researchers' access to laboratories.

The novel method Dr Kinoshita developed in this study involves adding ethanol to collected snow leopard faeces and then shaking the container with two zirconia beads by hand for two minutes to extract the hormones. The extract is then dropped onto the immunochromatography test strip which turns red as a result of an antigen-antibody reaction, indicating the presence of adrenocortical stress hormones. A smartphone app is used to measure the hormone concentration from the intensity of the colour.

Although this novel method could be applied to the other species, Dr Kinoshita warns that this will need to be tested for each species to ensure the stress hormones detected in the faeces accurately reflects the stress of the animal, as these levels will vary between species.

"As a next step, I would like to apply this method to various other animals and make it more reliable." said Dr Kinoshita. "I would also like to apply it to not only to wild animals, but also to zoo animals and pets to clarify the stress of these animals and improve their living environment."


CAPTION

Collecting snow leopard scats

CREDIT

Credit Kodzue Kinoshita



 

Diversification in supply chain crucial to avoid 'food shock' in cities

PENN STATE

Research News

IMAGE

IMAGE: SHOCK MAGNITUDES IN U.S. CITIES DUE TO A 100-YEAR FOOD SUPPLY SHOCK EVENT. SHOCK MAGNITUDES ARE EXPRESSED AS A FRACTION OF THE AVERAGE ANNUAL FOOD INFLOWS TO EACH CITY. DARKER... view more 

CREDIT: MICHAEL GOMEZ, PENN STATE

Diversification in the sourcing of food into cities can go a long way to tempering "food shock" -- a sudden drop in food supply due to unforeseen events, according to a team of researchers from Penn State and Northern Arizona University, who developed a statistical risk model linking supply chain diversity to the probability of a city experiencing food shocks.

"The model is simple, operationally useful and hazard-agnostic," the researchers report today (July 8) in Nature. "Using this method cities can improve their resistance to food supply shocks with policies that increase the food supply chain diversity."

The researchers investigated four types of food -- crops, live animals, feed and meat -- over a four-year period from 2012 to 2015 when there were droughts and production shocks in the Great Plains and the western U.S.

"Cities fundamentally depend on other regions for the provision of food and other basic resources," said Alfonso Mejia, associate professor of civil and environmental engineering, Penn State. "We looked at food because it interconnects with other critical regional systems -- water and energy -- and food production is inherently linked to climate variability and change. We wanted to apply basic lessons from the natural world -- biodiverse ecosystems are more resistant to shocks, learned through millennia of adapting to disruption of all kinds -- to our human food systems."

Mejia notes that the main finding of their work was that they were able to find a distinct and predictable data-driven relationship between the diversity of the supply chain of cities and the possibility of the city having a food supply disruption. The researchers found that the higher the diversity of the supply chain, the lower the probability of that city experiencing a food shock.

"If a city's food sources are mainly from regions nearby, then its supply chain is not going to be very diverse," said Michael Gomez, doctoral candidate in civil engineering, Penn State. "It's not just distance though, there are other factors that impact diversity."

Some of the variables important to food shock resilience include location, climate, supply network characteristics and level of urbanization. If all a city's beef came from Texas during the drought, for example, then that city would have experienced a food shock with respect to beef during that time.

"There are a number of things that will have a ripple effect on the food supply chain," said Gomez. "Drought, heatwaves, flooding, cyberattacks, global pandemics."

Originally, the available food trade data covered 70 cities including New York and Los Angeles, but Gomez expanded their database to include information on all 284 designated metropolitan areas in the U.S., making their results more robust.

Cities can run into problems with supply chain diversity because they source products from few sources, from locations with similar climates, or from limited geographic areas, among other things, according to the researchers.

The researchers used a traditional engineering approach to look at cities' food supplies. They took the framework of risk analysis of 100-year floods and applied that to food shocks and diversity.

"The idea was to provide cities with an operational way for quantifying resilience and, ultimately, supporting action that can boost resilience through supply chain diversity," said Mejia. "In principle, with our approach, a city can figure out what their supply chain diversity is and what protection against food shock they have. If they decide there is not enough protection, then they can figure out, based in part on other cities' experience, how much diversity in the food chain they need to offer sufficient protection."

Food shocks can cause small variations in the price of food in the supermarket. According to Gomez, populations below the poverty line are the ones most impacted by these increases. However, he notes that designing policies that foster supply chain diversity is a major coordination challenge for cities and other actors involved in the food supply chain.

"But cities could also work together with government at different levels to increase resilience against food supply chain disruptions," said Mejia. "There are several U.S. government programs that relate to food -- the breakfast, lunch, afterschool and nutrition assistance programs. These programs may offer an untapped opportunity for diversifying supply chains and building resilience."


CAPTION

Researchers find that supply chain diversity boosts resilience of cities to food shocks. This image illustrates the food supply chain with flying corn, a loaf of bread, a delivery truck, etc., illustrating where food is sourced from.

CREDIT

Victor O. Leshyk, Center for Ecosystem Science and Society, Northern Arizona University

Others working on this project include Benjamin L. Ruddell, director and professor, School of Informatics, Computing, and Cyber Systems; and Richard R. Rushforth, assistant research professor of computing and cyber systems, both at Northern Arizona University.

The National Science Foundation supported this work. Additional data visualization for this research and the project that supported it is at fewsion.us/few-view-3/.

Study: Oil spill impact on Canadian arctic, the environment and indigenous peoples

As melting sea ice brings more ships through the Northwest Passage, new research shows that Canada must prepare for the costs and consequences of an Arctic oil spill

SOCIETY FOR RISK ANALYSIS

Research News

The growing rate of ice melt in the Arctic due to rising global temperatures has opened up the Northwest Passage (NWP) to more ship traffic, increasing the potential risk of an oil spill and other environmental disasters. A new study published in the journal Risk Analysis suggests that an oil spill in the Canadian Arctic could be devastating--especially for vulnerable indigenous communities.

"Infrastructure along the NWP in Canada's Arctic is almost non-existent. This presents major challenges to any response efforts in the case of a natural disaster," says Mawuli Afenyo, lead author, University of Manitoba researcher, and expert on the risks of Arctic shipping.

Afenyo and his colleagues have developed a new method that could help managers predict the risk of pollutants from increased shipping activity. The paper describes how they used it to assess the socio-economic impacts of a potential oil spill in the Rankin Inlet region of the Canadian Arctic. This area is a critical regional hub for Arctic shipping where traffic has been increasing since 2010. For their analysis, the researchers simulated the conditions of the Exxon Valdez disaster in 1989, when an oil tanker released 11 million gallons of oil into Alaska's Prince William Sound. It should be noted that an oil spill of the magnitude of the Exxon Valdez has not occurred in the Rankin Inlet; this study is a simulation to project the potential impact of such a spill.

"One of our key findings was that the negative socio-economic impact of an oil spill in the Arctic accelerates quickly with time if there is no intervention," says Afenyo. "Our study also showed that an oil spill in this region has serious social impacts--affecting the family dynamics, hunting traditions, and culture of vulnerable indigenous communities."

Cleaning up a spill in the Arctic is different from that in other parts of the ocean due to the harsh nature of the environment and the remoteness of the region. Oil from a spill can move under the ice, between ice, get absorbed by snow, and become encapsulated in ice. This makes response efforts and long-term monitoring difficult and expensive.

Using two different risk assessment models, the researchers evaluated the probability and consequences of an oil spill in the Rankin Inlet. To estimate the probability, they reviewed past incidents and scientific reports about oil spills and also surveyed scientists, government workers, insurance specialists, and rights holders who live or work in the Arctic.

To estimate the consequences of a spill, they used a multi-period model to predict the socio-economic impacts over a period of five years if no recovery efforts were conducted--one of the most probable scenarios for this area based on current conditions. "This worse-case scenario analysis gives decision-makers the opportunity to put into place intervention that will help mitigate risks to a bare minimum," Afenyo explained.

All of the consequences of a potential spill were incorporated into an influence diagram to help managers assess the risk of a spill in terms of U.S. dollars. It includes such impacts as the destruction of flora and fauna and the disruption of hunting and culture for indigenous communities in the region. In the first year following the spill in the Rankin Inlet, the cost with no intervention was estimated to be $500 million. By the fifth year, this figure rose to $7.5 billion.

"Our method is very comprehensive as it uses both qualitative and quantitative inputs and can be used to assess not only the socio-economic impacts but also the environmental consequences," says Afenyo. He adds that it can serve as a decision-making tool for policy makers, insurance companies, and government institutions responsible for risk assessment and emergency response.

In their analysis, the researchers identified an urgent need to develop a good communication network between indigenous nations within the region, the Canadian federal government, and companies looking to work there. "The challenge will be determining how the Canadian federal government should collaborate with indigenous people to respond rapidly to an oil spill," says Afenyo.

In future research, the team plans to develop an app to help decision-makers assess the socio-economic impacts of shipping spills in the Arctic and examine how different policy responses could minimize the negative impacts of those spills. This would help marine insurers develop practical tools to help accurately calculate risk and insurance premiums for ships traveling through the Arctic. The newly constructed Churchill Marine Observatory will be an important source of data to further improve the accuracy of the model.

###

The paper is co-authored by Changmin Jiang of the Asper School of Business at the University of Manitoba and Adolf K.Y. Ng in the Division of Business and Management at Beijing Normal University-Hong Kong Baptist University United International College (China). The joint Sino-Canadian research is part of the GENICE project (Microbial Genomics for Oil Spill Preparedness in Canada's Arctic Marine Environment) led by the University of Manitoba and the University of Calgary.

About SRA

The Society for Risk Analysis is a multidisciplinary, interdisciplinary, scholarly, international society that provides an open forum for all those interested in risk analysis. SRA was established in 1980 and has published Risk Analysis: An International Journal, the leading scholarly journal in the field, continuously since 1981. For more information, visit http://www.sra.org.

Disclaimer: AAAS and Eure

Attacks target bases hosting forces in Iraq, Syria



Issued on: 07/07/2021 - 

Attacks on US targets in Iraq and Syria AFP

Baghdad (AFP)

Rocket and drone attacks on Wednesday targeted bases in Iraq and Syria hosting US forces that are part of an international coalition fighting the Islamic State jihadist group.

Fourteen rockets were fired at an air base hosting American troops in Iraq's western province of Anbar, causing minor injuries to two personnel, the US-led coalition said.

It was the latest in a spate of attacks on US military and diplomatic facilities in Iraq, blamed on pro-Iranian armed groups within a state-sponsored paramilitary force.

US forces, who have 2,500 troops deployed in Iraq as part of the anti-IS coalition, have been targeted almost 50 times this year in the country.

A Shite militant group called Revenge of al-Muhandis Brigade claimed responsibility and vowed to defeat the "brutal occupation", according to the US-based SITE intelligence group which monitors extremist groups.

The militant group is named after Abu Mahdi al-Muhandis of Iraq's Hashed al-Shaabi paramilitary alliance, who was killed in a US drone strike early last year along with the revered Iranian general Qasem Soleimani, SITE said.

Late last month, the US carried out deadly air strikes against pro-Iran fighters in both Iraq and Syria.

On Wednesday, the Ain al-Assad base was attacked by 14 rockets that "landed on the base & perimeter," coalition spokesman Wayne Marotto wrote on Twitter.

Iraqi security forces said the rocket launcher had been hidden inside a truck carrying bags of flour.

US forces on Monday night shot down an armed drone above their embassy in Baghdad, according to Iraqi security officials.#photo1

American defence systems fired rockets into the air in the capital, said AFP reporters, with Iraqi security sources saying the salvos had taken out an explosive-laden drone.

Just hours earlier, rockets had also been fired towards Ain al-Assad.

- Syria 'drone attacks' -

Across the border in Syria, where pro-Iran fighters have fought alongside the Damascus regime in the decade-old civil war, Kurdish-led forces also reported attempted attacks near a coalition base.

The US-backed Syrian Democratic Forces said they repelled drone attacks near the base in the Omar oil field in the country's east, in the second such operation in days.

"Our frontline forces against IS and coalition forces in the area of the Omar oil field dealt with drone attacks," it said, adding that the drones had caused no damage.

The Syrian Observatory for Human Rights, a Britain-based war monitor with sources inside Syria, said pro-Iran militias had probably launched the drones from a rural area outside the town of Al-Mayadeen southwest of the oil field.

It was the second such attack in days, after the SDF reported "two unidentified rocket-propelled grenades landed on the western side of the al-Omar oil field" late Sunday, which had caused no casualties.

Pro-Iranian militias also fired several shells at Al-Omar on Monday last week, causing damage but no casualties, the Observatory said.

The United States had launched air strikes the previous night against three targets it said were used by pro-Iran groups in eastern Syria and western Iraq.

The Observatory said at least five "Iran-backed Iraqi militia fighters" were killed in the strikes on the Syrian side of the border.

burs/ah/fz/par

#ABOLISHICE

Characteristics of Deaths Among Individuals in US Immigration and Customs Enforcement Detention Facilities, 2011-2018

Key Points

Question  What were the characteristics of deaths among individuals detained in US Immigration and Customs Enforcement (ICE) facilities between 2011 and 2018?

Findings  In this case series of 55 individuals who died in ICE detention facilities, most deaths occurred among young men with low rates of preexisting disease, with 14.5% of deaths attributed to suicide and 85.5% to medical causes. Death investigation records identified violations of ICE’s internal standards for delivery of health care in most of these deaths.

Meaning  The findings suggest that additional oversight and external evaluation of practices related to medical and psychiatric care within ICE facilities are needed.

Abstract

Importance  Concerns have been raised that substandard medical care has contributed to deaths in US Immigration and Customs Enforcement (ICE) detention facilities. After each in-custody death, ICE produces detainee death reviews, which describe the circumstances of the death and determine whether ICE Performance-Based National Detention Standards (PBNDS) were violated.

Objective  To describe factors associated with deaths in ICE detention facilities.

Design, Setting, and Participants  This case series used data extracted from detainee death reviews of deaths among individuals detained in ICE facilities for whom these reviews were available from January 2011 to December 2018.

Exposures  All individuals were in the custody of ICE at the time of death.

Main Outcomes and Measures  Data including demographic information, medical histories, recorded medical data, and reported violations of PBNDS were systematically extracted and summarized.

Results  Among 71 individuals who died in an ICE detention facility during the study period, detainee death reviews were available for 55 (77.5%). Most were male (47 [85.5%]), and the mean (SD) age at death was 42.7 (11.5) years. Individuals resided in the US for a mean (SD) of 15.8 (13.2) years before detention and were in ICE custody for a median of 39 days (interquartile range, 9-76 days) before death. Most had low burdens of preexisting disease, with 18 (32.7%) having a Charlson Comorbidity Index score of 0 and 15 (27.3%) having a score of 1 or 2. A total of 47 deaths (85.5%) were attributed to medical causes and 8 (14.5%) to suicide. Markedly abnormal vital signs were documented in the death reviews before 29 of 47 deaths from medical causes (61.7%), and 21 of these 29 deaths (72.4%) were preceded by abnormal vital signs during 2 or more encounters with ICE personnel before death or terminal hospital transfer. Overall, 43 detainee death reviews (78.2%) identified PBNDS violations related to medical care, with a mean (SD) of 3.2 (3.0) deficiencies per detainee death review.

Conclusions and Relevance  In this case series, deaths in ICE detention facilities from 2011 to 2018 occurred primarily among young men with low burdens of preexisting disease. Markedly abnormal vital signs preceded death or hospital transfer for most nonsuicide deaths. The PBNDS were violated in most detainee death reviews. These results suggest that additional oversight and external evaluation of practices related to medical and psychiatric care within ICE facilities are needed.

Introduction

Beginning in 2017, intensified efforts to deport immigrants increased the population in US Immigration and Customs Enforcement (ICE) detention facilities and the number of individuals requiring medical care from the ICE detention system.1,2 During fiscal year 2018 (October 1 to September 30, 2018), ICE detained 396 448 persons pending hearings on immigration claims, nearly half of whom would have previously been released on parole or with bond.3,4 As of September 10, 2019, 486 190 individuals had been detained during fiscal year 2019 (October 1 to September 30, 2019), resulting in a mean daily census of 49 403.5 Detained individuals include asylum seekers, individuals who overstay visas or otherwise remain in the US without legal documentation, and immigrants with certain types of criminal convictions and may include those with undocumented immigration status who have come in contact with the criminal justice system.

Between 2003 and 2017, 172 people died while detained in ICE facilities.6 A 2019 report by the US Department of Homeland Security Office of the Inspector General highlighted concerns regarding conditions faced by individuals in ICE detention facilities.7 However, information on the circumstances of deaths in ICE detention facilities is currently limited. The ICE Office of Detention Oversight initiates investigations resulting in detainee death reviews (DDRs) after each death that occurs in ICE detention facilities. These investigations involve interviews of detention facility staff, individuals in detention, medical record review, and review of security footage and logs. The DDRs are most often conducted by private contractors.8,9 These reviews generally identify whether Performance-Based National Detention Standards (PBNDS) were appropriately followed. Adapted from 2000 National Detention Standards (NDS), PBNDS were implemented in 2008 and revised in 2011 and 2016; they were revised once more and renamed the NDS in 2019.10 The NDS/PBNDS (hereafter referred to as PBNDS) prescribe standards of safety, security, and care for ICE detention facilities.10

Reports on a limited selection of DDRs written by Human Rights Watch11 and the American Civil Liberties Union (ACLU)12 highlighted widespread health systems issues across multiple facilities contributing to deaths among individuals detained by ICE. Human Rights Watch evaluated 15 DDRs and identified a number of dangerous inadequacies, including practitioners failing to interpret basic medical data and appropriately treat acute conditions, problematic use of solitary confinement (also known as segregation) for people with psychosocial disabilities, and flawed emergency responses.11,13 The ACLU evaluated 8 DDRs and uncovered similar failures.12 Evidence of noncompliance with ICE’s own medical standards was found in all of the DDRs reviewed by both the ACLU and Human Rights Watch.11,12 These findings are consistent with a report published by the Department of Homeland Security Office of the Inspector General after unannounced visits to 4 ICE detention facilities in 2019.7 The Office of the Inspector General identified PBNDS violations at all facilities visited during its review.7

Prior published reports6,14 highlighting deficiencies in medical and psychiatric care associated with deaths in ICE detention have been based on review of a relatively small number of DDRs and limited government inspections. However, to date, no systematic evaluation of a large subset of DDRs has been published in the peer-reviewed medical literature. We sought to describe systemic factors that may have been associated with deaths in ICE detention facilities between January 2011 and December 2018.

Methods

This case series examined DDRs for deaths among individuals detained in ICE facilities between January 2011 and December 2018. The DDRs were obtained from an online repository or from civil rights organizations known by us to have litigated for access to these reports. These organizations were, in turn, asked to refer us to other individuals who might be able to provide additional DDRs. Among 71 reported deaths between 2008 and 2011 in ICE detention facilities, DDRs were available for 55. This study was deemed exempt by the University of Southern California institutional review board, with a waiver of informed consent because publicly available data were used. This study followed the reporting guideline for case series.15

Produced by the ICE Office of Professional Responsibility and Office of Detention Oversight, many DDRs are publicly accessible via the official Department of Homeland Security ICE web page.16 These reports, ranging in length from 12 to 188 pages, include a brief synopsis of the individual’s immigration and medical history, a description of the detention facility, and a narrative summary of the events leading up to the death. This narrative summary is developed from a combination of medical record review and interviews with medical and security staff as well as other detained individuals. A review of video footage and security logs is conducted when these resources are available. Each report concludes with a list of PBNDS violations identified in the review and, at the DDR writer’s discretion, descriptions of additional security or medical care concerns noted by the reviewer.

Two of 3 independent researchers (M.G., B.F., P.P.) extracted data from each DDR using a data extraction form developed in REDCap.17 The senior researcher (P.P.) reviewed data extractions and highlighted all differences between the 2 independently completed data extraction forms. All discrepancies were resolved by consensus among all 3 data extractors after another collaborative review of the relevant DDR. This consensus review was conducted on a weekly basis. Any discrepancies on which the 3 data extractors could not agree were resolved by consensus of the most qualified research team members (for medical questions, S.T. and E.B.; for legal questions, N.F.).

Data extracted included descriptions of deceased individuals’ demographic information and immigration history and the chronology of ICE detention, including dates of detention, transfers, and death. In addition, characterizations of detention facility type (privately owned, ICE operated, or contracted by an intergovernmental service agreement whereby ICE pays for beds in local prisons and jails) and location were extracted.3,18 We extracted data from each DDR regarding the location where the individual died (ICE detention facility, in transport to the hospital, emergency department, or other hospital ward), the method used to transport the individual to a higher level of care when applicable, whether cardiopulmonary resuscitation (CPR) was initiated and under what circumstances (to describe the characteristics of the emergency response in ICE facilities), information about the individual’s medical and psychiatric history, whether past medical information had not been disclosed by the individual who died, and listed cause of death. We also recorded instances in which medical or security staff or other detained individuals had raised concerns about the deceased individual’s health to a supervisor or other staff member in the days preceding death. We noted whether the deceased individual had themselves filed a grievance related to their health before their death. Deaths were categorized as caused by suicide (if suicide was listed as a cause of or contributor to death) or medical (if suicide was not included as a cause of death). For deaths attributable to suicide, we noted whether the individual was prescribed and taking psychiatric medications at the time of death and whether the individual was under observation for suicide risk at the time of death or at any point earlier during detention.

Medical deaths were categorized as being attributable to infectious diseases, noncommunicable diseases, or both based on documented causes of death. Reports of death from any medical cause were also reviewed for severely abnormal vital signs before death using criteria established in prior work.19 Multiple severely abnormal vital signs measured simultaneously were counted as 1 episode (eg, tachycardia and hypotension noted during vital sign reading for an individual with sepsis would qualify as 1 episode of abnormal vital signs). We noted comorbidities and used these to calculate each individual’s Charlson Comorbidity Index (CCI) score.20,21 The CCI is a validated tool that considers age and preexisting medical conditions to predict 10-year mortality for an individual; scores range from 0 to 24, with higher scores reflecting increased burden of disease.20,21 Comorbidities were primarily extracted from the DDRs. We also included comorbidities cited as preexisting during hospitalizations and at autopsy to account for underdiagnosis of chronic conditions in this population, which was likely to have had limited access to primary care before detention owing to legal status. In addition, if multiple elevated blood pressures were measured during clinical evaluations while the individual who died was detained, these readings were reviewed by us to determine if the individual had grade 1 or higher hypertension using American Heart Association criteria.22

Furthermore, DDRs were reviewed to assess which PBNDS were specifically identified as having been violated in the DDRs. The specific version of PBNDS varied between reports, depending on the date of death and which standard (ie, 2008, 2011, or 2016) was in effect at each facility on the date of death. Given that most cases reviewed (n = 42) were evaluated under the 2011 PBNDS, deficiencies noted in death summaries referencing alternate PBNDS editions were normed on the 2011 PBNDS. These included 4 DDRs under NDS 2000, 8 under PBNDS 2008, and 1 under PBNDS 2016. Violation wording was collated among the various review versions and aligned with the 2011 PBNDS to standardize reporting of violations across the entire study population. Deficiencies in PBNDS standards were tallied for each DDR and stratified by respective violation subcategories.

Statistical Analysis

Individuals’ characteristics, medical care circumstances, and PBNDS violations were analyzed descriptively, with data given as means and 95% CIs or medians and interquartile ranges as appropriate. We also describe 2 case studies (eAppendices 1 and 2 in the Supplement) to provide contextualized examples of factors that preceded death. Data analysis was performed using Stata, version 15.1 (StataCorp LLC).

Results

Among 71 individuals who died while in an ICE detention facility during the study period, DDRs were available for 55 (77.5%). Demographic and immigration characteristics of these 55 individuals are summarized in Table 1. Among those who died, 47 (85.5%) were male; the mean (SD) age at death was 42.7 (11.5) years. Individuals who died had lived in the US for a mean (SD) duration of 15.8 (13.2) years before entering an ICE detention facility and spent a median of 39 days (interquartile range, 9-76 days) in ICE custody before death. There were 24 different citizenships represented among the 55 individuals who died. Thirty-four of the 55 deaths (61.8%) occurred in privately owned, for-profit detention facilities.

Circumstances of deaths are given in Table 2. Individuals who died had a low burden of preexisting disease. Most had CCI scores of 0 (18 [32.7%]) or 1 to 2 (15 [27.3%]), correlating with an expected 10-year survival of 98% and 90% to 96%, respectively. In 2 instances, the person who died had known medical conditions that they did not initially report to ICE medical staff (diabetes [n = 1], HIV infection [n = 1]). In addition, substance withdrawal syndromes contributed to 2 deaths (methadone [n = 1], alcohol [n = 1]).

Of 55 deaths, 47 (85.5%) were attributed to medical conditions. Markedly abnormal vital signs were documented in the death reviews before 29 of 47 deaths from medical causes (61.7%), and 21 of these 29 deaths (72.4%) were preceded by abnormal vital signs during 2 or more encounters with ICE personnel before death or terminal hospital transfer. Twenty-nine of the 47 medical deaths (61.7%) were attributed to noncommunicable diseases (eg, cancer, stroke), and 10 (21.2%) to communicable diseases (eg, tuberculosis, other contagious infections). Eight individuals (17.0%) died of a combination of both communicable and noncommunicable diseases.

Six reports (10.9%) noted that a fellow detained person had raised concerns about the physical or mental health of the person who died before their death. Nine reports (16.4%) noted that similar concerns had been raised by detention facility security or medical staff. Forty-two of the 55 individuals who died (76.4%) received CPR before death. In 18 instances, CPR was initiated by detention facility staff, and in 2 instances, CPR was started by another individual in ICE custody. In 4 instances, emergency medical service personnel initiated CPR, twice on arrival to the ICE facility in the presence of ICE medical staff responders and twice during transport. Overall, 20 individuals (36.4%) died before hospital admission, 4 in the detention facility and 16 in the emergency department within an hour of arrival.

Characteristics of deaths attributed to suicide are included in Table 2. Among the 8 deaths attributed to suicide, 6 were by hanging, 1 by asphyxiation after an apparent intentional ingestion of a foreign object (a sock containing a whole toothbrush causing airway blockage), and 1 by an apparent intentional overdose of prescribed tricyclic antidepressants that the individual had been stockpiling before death. None of these individuals were under observation for suicide risk at the time of their death, although 4 had been at some point earlier during their detention.

A complete list of PBNDS categories and a summary of DDRs that identified PBNDS violations by category are included in Table 3. Of 55 DDRs, 43 (78.2%) identified PBNDS violations related to care, a category of standards that includes subcategories such as hunger strikes; medical care; significant self-harm and suicide prevention and intervention; and disability identification, assessment, and accommodation.23 Characteristics of PBNDS violations in the care category are summarized in Table 4. All DDRs with PBNDS violations in the category of care involved deficiencies in medical care specifically, with a mean (SD) of 3.2 (3.0) deficiencies involving medical care per case. In addition, within the care category, 5 of 43 DDRs (11.6%) identified concurrent deficiencies in the subcategory of significant self-harm and suicide prevention and intervention.

Case studies and PBNDS violations of 2 deaths of individuals in ICE custody that were preceded by multiple documented measurements of abnormal vital signs are given in eAppendices 1 and 2 in the Supplement.


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Characteristics of Deaths Among Individuals in US Immigration and Customs Enforcement Detention Facilities, 2011-2018 | Law and Medicine | JAMA Network Open | JAMA Network