Wednesday, April 30, 2025

 

High blood sugar in adolescence tripled the risk of premature heart damage affecting females worse than males




University of Eastern Finland
Persistent high blood glucose and insulin resistance caused structural and functional heart damage. 

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In 1595 adolescents followed up from age 17 to 24 years, persistent high blood glucose and insulin resistance caused structural and functional heart damage. A higher fasting blood glucose at the prediabetes level tripled the risk of worsening cardiac damage. Image: Diabetes Care Graphic Abstract.

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Credit: Image: Diabetes Care Graphic Abstract / Andrew Agbaje.





Persistently high blood sugar and insulin resistance significantly increased the risk of worsening functional and structural heart damage during growth from adolescence to young adulthood, a new study shows. The study was conducted in collaboration between the Baylor College of Medicine in the US, the University of Bern in Switzerland, Murdoch Children’s Research Institute in Australia, the Universities of Bristol and Exeter in the UK, and the University of Eastern Finland. The results were published in the highly esteemed Diabetes Care.

In the present study, 1,595 adolescents drawn from the University of Bristol’s Children of the 90s cohort were followed up from age 17 until 24 years. To assess the prevalence of prediabetes, which refers to high fasting blood glucose levels, two alternative cutpoints were used, a stricter cutpoint of ≥5.6 mmol/L recommended by the American Diabetes Association, and ≥6.1 mmol/L , which is the present recommendation in many countries.

Altogether, 6.2% 17-year old adolescents had fasting blood sugar of ≥5.6 mmol/L, which increased nearly fivefold to 26.9% by age 24 years. Only 1.1% adolescents had a level of ≥6.1 mmol/L, but the prevalence increased fivefold to 5.6% by age 24 years.

The prevalence of excessive heart enlargement (left ventricular hypertrophy) increased threefold from 2.4% at age 17 years to 7.1% at age 24 years, while the prevalence of heart dysfunction increased from 9.2% in adolescence to 15.8% in young adulthood.

Persistent fasting blood sugar of ≥5.6 mmol/L from age 17 to 24 years was associated with a 46% increased risk of left ventricular hypertrophy. The risk was threefold if fasting blood sugar was persistently ≥6.1 mmol/L. High blood glucose also decreased heart muscle relaxation, altered normal heart function, and excessively increased the pressure of blood flow returning to the heart. Persistent insulin resistance was associated with a 10% increased risk of premature and worsening heart damage. During the 7-year growth period, increased glucose levels contributed 0.57 g/m2.7 to cardiac mass increase in females compared to a 0.11 g/m2.7 increase in males.

Previous studies among adults have shown that high blood glucose and insulin resistance in youth strongly predict the risk of type 2 diabetes mellitus in people in their mid-fifties. Also, it is known that the younger one is diagnosed with type 2 diabetes, the more severe and rapid the complications may be, if untreated. However, no study in the world has previously examined the earliest manifestation of the consequence of high blood glucose and insulin resistance on the heart. This is due to the scarcity of repeated echocardiography assessments of the heart in a large population of healthy youth.

The current study is the largest and the longest follow-up of glucose concentration and repeated echocardiography study in a relatively healthy young population in the world. The participants' fasting blood glucose and insulin were measured at ages 17 and 24 years, and they had echocardiography measurements of the heart structure and function at ages 17 and 24 years. Insulin resistance was computed from fasting glucose and insulin. Other fasting blood samples were also repeatedly measured for low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, and high-sensitivity C-reactive protein. Blood pressure, heart rate, socio-economic status, family history of cardiovascular disease, smoking status, accelerometer measure of sedentary behaviour and physical activity as well as dual-energy X-ray absorptiometry measured fat mass and lean mass were accounted for in the analyses.

“Earlier results from the same cohort indicate that late adolescence is a critical period in the evolution of cardiometabolic diseases. The current findings further confirm that even healthy-looking adolescents and young adults who are mostly normal weight may be on a path towards cardiovascular diseases, if they have high blood glucose and insulin resistance. Surprisingly, we observed that high blood sugar may aggressively damage females’ hearts five times faster than males’; therefore, special attention should be paid to girls in terms of prevention,” says Andrew Agbaje, physician and associate professor (docent) of Clinical Epidemiology and Child Health at the University of Eastern Finland.

“Worsening insulin resistance and increased fat mass have a bidirectional reinforcing vicious cycle. In the new study, we observed that two-thirds of the effect of insulin resistance on excessive heart enlargement was explained by increased total body fat. The five-fold increase in the prevalence of prediabetes within 7 years of growth from adolescence to young adulthood underscores the critical importance of lifestyle behaviour and dietary habits, especially after adolescents have become independent from their family,” Agbaje, the study’s senior author, concludes.

Agbaje’s research group (urFIT-child) is supported by research grants from Jenny and Antti Wihuri Foundation, the Finnish Cultural Foundation Central Fund, the Finnish Cultural Foundation North Savo Regional Fund, the Orion Research Foundation, the Aarne Koskelo Foundation, the Antti and Tyyne Soininen Foundation, the Paulo Foundation, the Yrjö Jahnsson Foundation, the Paavo Nurmi Foundation, the Finnish Foundation for Cardiovascular Research, Ida Montin Foundation, Eino Räsänen Fund, Matti and Vappu Maukonen Fund, Foundation for Pediatric Research, Alfred Kordelin Foundation and Novo Nordisk Foundation.

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Physical and psychological symptoms of ketamine abuse revealed in research


Ketamine addiction is linked to high levels of physical health problems and psychological consequences, with nearly half of those affected not seeking support or treatment, new research has revealed.



University of Exeter





Ketamine addiction is linked to high levels of physical health problems and psychological consequences, with nearly half of those affected not seeking support or treatment, new research has revealed.

The study, led by the University of Exeter and University College London (UCL), is the largest to date to explore the experience of people currently living with ketamine addiction in-depth. Supported by NIHR, the research included interviews with users, in which many said they were not aware of the risks of addiction until their ketamine use was already out of control, with one calling ketamine “the heroin of a generation”.

Researchers studied 274 people who identified as having ketamine use disorder, and found previously under-reported symptoms. Of those, 60 per cent had experienced bladder or nasal problems. The study also found that 56 per cent reported K-cramps – a painful organ cramping linked to excessive ketamine use, with which can often drive people back to the drug to seek relief from the pain of this symptom. Bladder problems can involve needing a full bladder removal, and the need for a urostomy bag to collect urine.

Psychological symptoms included cravings, low mood, anxiety and irritability.  The research, published in Addiction, found that only 56 per cent of participants sought treatment, and only 36 per cent of those were satisfied with their care.

Study author Professor Celia Morgan, of University of Exeter, said: “We know that ketamine use is on the rise, with a number of high-profile tragedies linked to ketamine addiction. Meanwhile, a growing number of clinical trials are finding therapeutic benefits involving ketamine in carefully-controlled environments, combined with therapy. Our research is the first to analyse in-depth the experience of people using very large amounts of ketamine, and shows the devastating physical health problems people can face with dependent ketamine use.  Our study also highlights the barriers that people with ketamine addiction face when they try to seek treatment, often being sent away from treatment services.”

Uk government data indicates that ketamine use has more than doubled since 2016, with a threefold increase among 25-year-olds.

To investigate the impact on those who develop an addition to ketamine, the study involved both questionnaires and interviews. In the study, 59 per cent of participants reported that there was “definitely not” enough awareness in education and among peer groups around the risks associated with ketamine, with many reporting that they did not know the drug could be addictive. Many reported feeling too embarrassed to seek treatment.

In interviews, one participant said: “People know the risks about Heroin and Cocaine, but not how the addiction to Ketamine can become even stronger than being addicted to heroin or cocaine.”

While another told researchers:

“I feel it is the heroin of a generation, and more information will become available once more time passes and more people my age begin to suffer so greatly from misuse that it can’t be hidden anymore.

Participants also painted a picture of a lack of understanding among health professionals. One said: All they did was give me painkillers and send me on my way”, while another reported "GP doesn’t think ketamine is addictive, just told me to stop, doesn’t have a clue".

Co-author Rebecca Harding, a PhD candidate at University College London, said: “Our study highlights the need for greater recognition of the significant physical and psychological risks associated with ketamine, both among healthcare professionals and the general public. We need improved treatment programs, while raising awareness of ketamine use, to better support those seeking care. By focusing on evidence-based treatments, such as specialised group therapy and pharmacological interventions, we can improve access to effective treatment and address the growing challenge of ketamine use disorder.”

The paper is titled “The landscape of ketamine use disorder: patient experiences and perspectives on current treatment options”, and is published in Addiction.

 

Sexual trauma during military service linked to higher risk of suicide and overdose death later in life




American College of Physicians





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Below please find summaries of new articles that will be published in the next issue of Annals of Internal Medicine. The summaries are not intended to substitute for the full articles as a source of information. This information is under strict embargo and by taking it into possession, media representatives are committing to the terms of the embargo not only on their own behalf, but also on behalf of the organization they represent.   
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1. Sexual trauma during military service linked to higher risk of suicide and overdose death later in life

Abstract: https://www.acpjournals.org/doi/10.7326/ANNALS-24-01145

URL goes live when the embargo lifts             

A longitudinal cohort study of older veterans found that a history of military sexual trauma (MST) is associated with increased risk for any suicide attempt and death by drug overdose in both women and men, especially those who also have post-traumatic stress disorder (PTSD). According to the authors, these findings are a call to action for policies and practices that reduce sexual trauma in the military. The study is published in Annals of Internal Medicine

 

In the first study of its kind, researchers from the University of California, San Francisco studied a national longitudinal cohort of 5,059,526 veterans aged 50 or older to determine the association between MST and risk for suicide, overdose, and related mortality later in life. The researchers stratified the study cohort by gender and MST exposure and examined whether PTSD modified the effect of MST on suicide and drug overdose death risk. The researchers found that MST was associated with an increased risk for any suicide attempt and death by suicide in both genders. The risk of suicide attempt was three times higher among men and women who had experienced MST compared to those who did not experience MST. The cumulative incidence of any late-life suicide attempts by women and men with MST were six and twelve percentage points higher than those who did not experience MST. Although MST similarly increased the risk of suicide and overdose death for both genders, MST was more than 10 times more common among women than men. MST was associated with over 60% increased risk of death by drug overdose in both genders. The findings also showed that for both men and women veterans with PTSD, MST was associated with a higher risk for suicide attempt and nonfatal attempt compared to those who only had PTSD. 

 

Media contacts: For an embargoed PDF, please contact Angela Collom at acollom@acponline.org. To contact corresponding author Anita S. Hargrave, MD, MAS, please email the SFVAHCS Public Affairs Office at V21SFCPublicAffairs@va.gov.  

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2. Unexpected urticarial reactions (hives) seen in trial of HIV mRNA vaccines

Abstract: https://www.acpjournals.org/doi/10.7326/ANNALS-24-02701

Editorials: https://www.acpjournals.org/doi/10.7326/ANNALS-25-01102

URL goes live when the embargo lifts              

A safety analysis of mRNA vaccination in a phase 1, randomized, open-label clinical trial evaluated the safety and tolerability of three investigational HIV-1 trimer mRNA vaccines. The study vaccines were found to be generally safe and tolerable. However, the researchers observed unexpected, delayed onset urticaria, or hives, in 7% of participants, highlighting the importance of promoting awareness and reporting of chronic urticaria after mRNA vaccination, adopting risk mitigation strategies in future mRNA vaccine trials, and encouraging further evaluation to determine the cause of these reactions. Urticarial reactions, mostly transient, have been reported with both licensed mRNA COVID-19 vaccines. The study is published in Annals of Internal Medicine.

 

A team of researchers funded by the National Institutes of Health analyzed the safety and tolerability of three investigational HIV-1 trimer mRNA vaccines: BG505 MD39.3 gp140 (soluble trimer gp140); BG505 MD39.3 gp151 (membrane-bound trimer gp151); and BG505 MD39.3 gp151 CD4 knockout (membrane-bound gp151 CD4KO). 108 participants without HIV aged 18 to 55 years were enrolled at 10 US clinical research sites between February and August 2022 and were randomly assigned to receive one of the three vaccines. Vaccines were administered intramuscularly at weeks 0, 8, and 24. Participants were observed for at least 30 minutes after vaccination and completed a daily symptom diary for a week after. Participants reported frequent but mild to moderate side effects including pain at the injection site, fatigue and muscle aches that were like those seen previously with licensed mRNA COVID-19 vaccines.  80 participants reported 180 adverse events (AEs), with 30 AEs related to the study vaccinations. These AEs included lymphadenopathy, axillary pain, and angioedema. Urticaria was observed in seven participants, four of which had unresolved, intermittent urticaria at 12 months. All seven participants with urticaria had prior receipt of mRNA COVID-19 vaccines, and urticaria occurred with each of the three study vaccines. The study details the first two cases of participants with delayed onset, generalized urticaria with dermographism related to study products. The mRNA platform is under investigation in many vaccines, including HIV-1 vaccines. While the mechanism behind urticarial reactions with these investigational HIV-1 mRNA vaccines is currently unknown, the researchers note that mRNA technology continues to hold great promise for vaccines and therapeutics. 

 

Media contacts: For an embargoed PDF, please contact Angela Collom at acollom@acponline.org. To contact corresponding author Sharon A. Riddler, MD, please email riddler@pitt.edu.

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3. Prior antibiotic exposure linked to increased hospital-onset antimicrobial resistant infections during pandemic

Abstract: https://www.acpjournals.org/doi/10.7326/ANNALS-24-03078

URL goes live when the embargo lifts           

A retrospective cohort study found that antimicrobial resistant (AMR) infections increased in hospitals during the pandemic due to non-hospital factors, including increased illness severity and antibiotic exposure in the 3 months prior to hospitalization. The findings are consistent with a recent Centers for Disease Control and Prevention fact sheet on AMR. The researchers say their study could inform ongoing control interventions and improve responses to future crises. The study is published in Annals of Internal Medicine.

 

Researchers from the National Institutes of Health Clinical Center and colleagues queried PINC AI to sort data from 243 U.S. hospitals between January 2018 and December 2022 to determine incidence of AMR infection and contributing factors among adult patients. They analyzed infections during three time periods: prepandemic (January 2018 to December 2019), peak pandemic (March 2020 to February 2022), and waning pandemic (March to December 2022). Encounters were screened for cultures from any source with growth of Staphylococcus aureusEnterococcus species, Acinetobacter species, Pseudomonas aeruginosa, or Enterobacterales. The AMR phenotypes analyzed included: methicillin-resistant S aureus (MRSA), vancomycin resistant Enterococci (VRE), extended-spectrum cephalosporin-resistant (carbapenem-susceptible) Enterobacterales (ECR-E), carbapenem-resistant Enterobacterales (CRE), carbapenem-resistant P aeruginosa (CR-PA), and carbapenem-resistant Acinetobacter (CRAB).  The researchers also conducted a competing risks analysis to investigate the effects of patient- and hospital-level characteristics on the risk of hospital-onset AMR infection.

 

The researchers found that of the 9,955,696 hospitalizations, there were 178,579 infection episodes associated with 1 of the 6 AMR phenotypes, equivalent to an overall incidence of 179.4 per 10,000 hospitalizations. MRSA infections were the most common overall, but CRAB infections increased the most during the pandemic. MRSA infections decreased during the pandemic and continued declining throughout 2022. VRE, CR-PA, CRE, and CRAB represented relatively greater proportions of hospital-onset infections. Overall AMR infections increased by 6.5% during the pandemic and returned to baseline levels after March 2022. Hospital-based infections had larger increases than community-based infections during the pandemic, and as the pandemic waned, community-onset AMR returned to baseline levels whereas hospital-onset AMR remained 11.6% above the baseline. Patient factors were most associated with higher hospital-onset AMR infections during the pandemic including acute illness severity. Additionally, antibiotic exposure in the prior 3 months was incrementally associated with an increased risk for hospital-onset AMR infections.

 

Media contacts: For an embargoed PDF, please contact Angela Collom at acollom@acponline.org. To contact corresponding author Sameer S. Kadri, MD, MS, please email Yvonne Hylton at yvonne.hylton@nih.gov.

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4. ACP recommends ways physicians can be more effectives advocates for patients and profession

Abstract: https://www.acpjournals.org/doi/10.7326/ANNALS-24-03973

URL goes live when the embargo lifts            

In a new policy paper published in Annals of Internal MedicineEmpowering Physicians Through Collective Action: A Position Paper from the American College of Physicians, ACP is offering recommendations about how physicians can become effective advocates for their patients and their profession through collective action.

 

ACP’s new policy paper details what the goals of collective action should be and how physicians and health systems should approach action. The recommendations start by stating that the primary objective of collective empowerment actions by physicians should be to ensure that patients have access to safe, affordable, high-quality care. The paper goes on to say that practicing physicians must be included in executive positions and on the boards of hospitals and health systems, and that they must have means to collaborate with hospital and health systems leaders.

 

ACP supports the rights of physicians to engage in protected concerted activity to amplify concerns about health and safety, working conditions, and other issues without retaliation or penalties from their employer. ACP also supports the right of physicians to engage in responsible collective bargaining, including joining a union or bargaining unit. Actions like a refusal to perform administrative requirements, billing duties, or concerted refusals to work should only be considered once all other negotiating tactics have been exhausted, and efforts have been made by all involved parties to ensure safe patient care. Finally, ACP reaffirms that independently practicing physicians should have the right to negotiate jointly with health insurance plans over terms that affect the quality of, and access to, patient care, including payment and administrative policies that adversely affect access and quality.

 

Media contacts: For an embargoed PDF, please contact Angela Collom at acollom@acponline.org. To speak with someone from ACP, please contact Jacquelyn Blaser at jblaser@acponline.org.   

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5. Medicaid ‘unwinding’ left many younger adults uninsured

Abstract: https://www.acpjournals.org/doi/10.7326/ANNALS-24-03261

URL goes live when the embargo lifts             

A brief research report examined the changes in uninsured rates among working-age adults 1 year after the pandemic-era Medicaid continuous enrollment provision ended. The study found that this “unwinding” led to an increase in the uninsured rate, mostly affecting younger adults, those with lower educational attainment, and combined-race groups. According to the authors, the findings highlight the critical need to mitigate further insurance loss among working-age adults, especially as policymakers consider whether to extend or terminate additional pandemic-era protections. The findings are published in Annals of Internal Medicine.  

 

Researchers from Beth Israel Deaconess Medical Center analyzed data from The Current Population Survey Annual Social and Economic Supplement (ASEC), a nationally representative survey conducted each March. The researchers used the March 2023 (before unwinding) and March 2024 (after unwinding) ASEC which included 164,778 participants aged 19 to 64 years who self-reported their insurance status and type (uninsured, Medicaid, Medicare, employer-sponsored, Marketplace or non-Marketplace). The researchers found that the uninsured rate increased from 11.1% to 11.5% from March 2023 to March 2024. This decline was driven by declines in employer-sponsored and Medicaid coverage, despite an increase in Marketplace coverage. Medicaid unwinding was associated with an increase in uninsured rates among adults aged 19 to 44 years, White and combined race adults and adults with a high school education or less. Surprisingly, there was also an association between Medicaid unwinding and an increase in uninsurance rates for those above the poverty line, but not for those below the poverty line. 

 

Media contacts: For an embargoed PDF, please contact Angela Collom at acollom@acponline.org. To contact corresponding author Rishi K. Wadhera, MD, MPP, MPhil, please email rwadhera@bidmc.harvard.edu.

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6. Report details pandemic-related trends in chronic liver disease mortality  

Abstract: https://www.acpjournals.org/doi/10.7326/ANNALS-24-03218

URL goes live when the embargo lifts            

A brief research report analyzed trends in mortality for chronic liver disease (CLD) in the United States before, during and after the COVID-19 pandemic. The findings revealed disparate trends among alcohol-related liver disease (ALD), metabolic dysfunction-associated steatotic liver disease (MASLD)and hepatitis C virus (HCV)-related mortality, emphasizing the importance of establishing clinical pathways that provide uninterrupted care to persons with CLD in future public health crises. The findings are published in Annals of Internal Medicine.

 

Researchers from Stanford University and colleagues used the national mortality data set released by the National Vital Statistics System to analyze CLD deaths in persons aged 25 years and older and describe trends in mortality between 2015 and 2023. The researchers found that ALD-related mortality increased before the pandemic, sharply increased during the early pandemic and declined after the pandemic. Similar patterns were observed for MASLD-related mortality, however, the increasing trend in MASLD-related mortality was steeper than that of ALD-related mortality. HCV-related mortality steadily declined before the pandemic, remained stable during the early pandemic and decreased in the late pandemic. The findings suggest that after the early pandemic, improved health care access, universal vaccination rates and reduced social isolation likely mitigated the surge in ALD-related mortality and contributed to the decline in HCV-related mortality.

 

Media contacts: For an embargoed PDF, please contact Angela Collom at acollom@acponline.org. To contact corresponding author Donghee Kim, MD, PhD, please email dhkimmd@stanford.edu.

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Also new this issue:

Sins of Omission: Model-based Estimates of the Health Effects of Excluding Pregnant Participants from Randomized Controlled Trials

Alyssa Bilinski, PhD; Natalia Emanuel, PhD; and Andrea Ciaranello, MD

Medicine and Public Issues

Abstract: https://www.acpjournals.org/doi/10.7326/ANNALS-24-00689

 

Parents with alcohol-related diagnoses are twice as likely to maltreat children




Society for the Study of Addiction





A new systematic review has found that parents and other child caregivers who have alcohol-related diagnoses are twice as likely to maltreat children in their care than parents and caregivers with no alcohol-related diagnoses.  ‘Alcohol-related diagnoses’ included alcohol-related hospitalisation, alcohol-related service use, or a history of clinically determined alcohol dependence. ‘Child maltreatment’ included physical, psychological, emotional and sexual abuse; neglect; and other types of maltreatment such as harsh parenting.

The study pooled the results from twelve studies of child maltreatment.  All were cohort studies in high-income countries: three in Australia, one in Denmark, one in New Zealand, two in South Korea, one in the United Kingdom, and four in the United States.  The sample size ranged from 501 to 84,245 (median 4782). Caregiver alcohol-related diagnoses were associated with higher child maltreatment incidence (odds ratio, 2.32; 95% confidence interval, 1.10-4.89) and recurrence (1.92; 1.13-3.28) compared with caregivers without alcohol-related diagnoses.

Lead author Dr June Leung, of the SHORE & Whariki Research Centre, Massey University, says “To our knowledge, this is the first systematic review of the relationship between caregiver alcohol use and all types of child maltreatment.  We found consistent associations between caregiver alcohol-related diagnoses and child maltreatment. We also could not rule out a link between any caregiver drinking and child maltreatment. Our findings call for stronger actions to limit alcohol harm, including child maltreatment.”

This review was published in the scientific journal Addiction.

-- Ends –

For editors:

This Open Access paper is available on the Wiley Online Library after the embargo has lifted (https://onlinelibrary.wiley.com/doi/10.1111/add.70055) or you may request an early copy from Jean O’Reilly, Editorial Manager, Addictionjean@addictionjournal.org.

To speak with lead author Dr June Leung, please contact her at the SHORE & Whariki Research Centre, Massey University, New Zealand by email (Y.Leung@massey.ac.nz) or telephone (+64 92127331).

Full citation for article: Leung JYY, Parker K, Lin E-Y and Huckle T. The association of parental or caregiver alcohol use with child maltreatment: a systematic review and meta-analysis of longitudinal studies. Addiction. 2025. DOI: 10.1111/add.70055.

Primary funding:  Health Research Council of New Zealand (HRC 19/107).

Declaration of interests: The authors declare no competing interests.

Addiction (www.addictionjournal.org) is a monthly international scientific journal publishing peer-reviewed research reports on alcohol, substances, tobacco, gambling, editorials, and other debate pieces. Owned by the Society for the Study of Addiction, it has been in continuous publication since 1884.

 

So, our city’s shrinking—Now what?


Effective per capita municipal expenditures correlated with population changes




Osaka Metropolitan University

Small and medium-sized cities in Japan 

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Policymakers in local municipalities must consider effective policies for declining populations. (Photo taken in Hatsukaichi City, Hiroshima Prefecture.)

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Credit: Haruka Kato, Osaka Metropolitan University




Policymakers often overlook the challenges faced by shrinking small and medium-sized cities. Yet, keeping these cities sustainable is crucial for many urban stakeholders. Unfortunately, the methods that have succeeded in large cities cannot be unilaterally applied to combat this issue. This suggests that a research gap on effective urban management in small and medium-sized cities exists.

Dr. Haruka Kato, a junior associate professor at Osaka Metropolitan University, examined the types of municipal expenditures that correlated with population changes in small and medium-sized cities. The research design used cross-sectional studies from 2007 to 2022 of all small and medium-sized cities in Japan. The nonlinear relationship between data was analyzed using the eXtreme Gradient Boosting algorithm.

The results revealed that 1288 cities were shrinking, accounting for 82.56% of all small and medium-sized cities in Japan. Further, this study identified the types of per capita municipal expenditures that correlated with population change, which were often associated with welfare expenditures. Specifically, the population grew in cities that increased per capita expenditures on children and decreased those on welfare recipients and the older population. Additionally, city planning expenditures were also effective, but only in the maintenance and construction of streets.

“In recent years, urban policymakers have adopted an urban management perspective. With limited financial resources, policymakers must decide what and how much to invest in citizens,” said Dr. Kato. “Our research clearly suggests prioritizing child welfare expenditures as a key strategy to sustain populations in small and medium-sized cities.”

The findings were published in the Journal of Urban Management.

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About OMU 

Established in Osaka as one of the largest public universities in Japan, Osaka Metropolitan University is committed to shaping the future of society through the “Convergence of Knowledge” and the promotion of world-class research. For more research news, visit https://www.omu.ac.jp/en/ and follow us on social media: XFacebookInstagramLinkedIn.