Publications by authors named "Koyanagi A"

Background: We aimed to investigate associations of unclean cooking fuels with depression and anxiety symptoms in a large sample of adults aged ≥65 years from six low- and middle-income countries (LMICs).

Methods: Cross-sectional, community-based, nationally representative data from the WHO Study on global AGEing and adult health (SAGE) were analyzed. Unclean cooking fuel referred to kerosene/paraffin, coal/charcoal, wood, agriculture/crop, animal dung, and shrubs/grass.

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Article Synopsis
  • Injury is a significant public health concern in Europe, with notable differences in injury death rates and disability-adjusted life years (DALYs) across sub-regions and countries, particularly between Eastern, Central, and Western Europe.
  • The study analyzed GBD 2019 data from 44 European countries over 20 years, focusing on injury mortality and DALY rates by cause and sex while assessing inequalities based on country comparisons.
  • Findings reveal that Eastern Europe has the highest injury death rates (80 deaths per 100,000), while Italy has the lowest injury DALY rate, indicating that males experience greater disparities in injury impact than females.
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To provide a comparative meta-analysis and systematic review of the risk and clinical outcomes of coronavirus 2019 (COVID-19) infection between fully vaccinated and unvaccinated groups. Eighteen studies of COVID-19 infections in fully vaccinated ("breakthrough infections") and unvaccinated individuals were reviewed from Medline/PubMed, Scopus, Embase, and Web of Science databases. The meta-analysis examined the summary effects and between-study heterogeneity regarding differences in the risk of infection, hospitalization, treatments, and mortality between vaccinated and unvaccinated individuals.

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Objective: Multisystem inflammatory syndrome in children (MIS-C) can occur in association with coronavirus disease 2019 (COVID-19). It is not easy to differentiate MIS-C from severe COVID-19 or Kawasaki disease based on symptoms. The aim of this study was to describe the clinical and laboratory characteristics of MIS-C.

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Nonalcoholic fatty liver disease (NAFLD) is a liver disease that affects approximately 25% of the world's population, and various treatments have been applied for NAFLD patients. We compared the effectiveness of each intervention conducted to treat NAFLD by evaluating meta-analyses of pharmacological interventions and lifestyle modification including diet and exercise. We searched Pubmed/Medline, Embase, and Cochrane Library and included meta-analyses of randomized controlled trials investigating the effects of pharmacological intervention and lifestyle modification on NAFLD.

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Background: This study aimed to investigate the prevalence of and the factors associated with post-COVID-2019 condition in COVID-19 children and adolescents in Germany.

Methods: The present retrospective cohort study used data from the Disease Analyzer database (IQVIA), and included patients aged <18 years who were diagnosed with COVID-19 in one of 524 general and 81 pediatric practices in Germany between October 2020 and August 2021 (index date: first COVID-19 diagnosis). Post-COVID-19 condition was assessed between the index date and November 2021.

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It remains unclear how effective COVID-19 vaccinations will be in patients with weakened immunity due to diseases, transplantation, and dialysis. We conducted a systematic review comparing the efficacy of COVID-19 vaccination in patients with solid tumor, hematologic malignancy, autoimmune disease, inflammatory bowel disease, and patients who received transplantation or dialysis. A literature search was conducted twice using the Medline/PubMed database.

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Background: Little is known about the association between multimorbidity (i.e., two or more chronic conditions) and sleep problems in the general adult populations of low- and middle-income countries (LMICs).

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Background: The aims of the present study were to examine prospective associations of multimorbidity (i.e., ≥2 chronic conditions) at baseline with incident and persistent anxiety over a two-year follow-up period among Irish older adults, and to quantify the extent to which sleep, pain, and disability mediate the multimorbidity-anxiety relationship.

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Background: Psychotic experiences have been framed as a marker of mental and physical health status; however, more research is needed to confirm these associations in university populations.

Methods: We analyzed data from the Healthy Minds Survey (Fall Semester Cohort 2020), which is a non-probability sample of students attending one of 28 universities in the United States, who completed an online survey (September 2020-December 2020). We used multivariable logistic regression to examine the associations between several mental and physical health conditions and psychotic experiences, adjusting for age, gender, sexual orientation race/ethnicity, and international student status.

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Article Synopsis
  • - The study highlights that mental health issues are a significant public health concern for young people in Europe, with varying levels of resources allocated to tackle these problems across different countries.
  • - Data from 31 European countries reveals alarming statistics for mental disorders, substance use disorders, and self-harm, showing trends in disability and premature death over a 30-year period.
  • - The findings suggest that improving national policies on mental health is crucial, particularly for younger populations, to address the increasing burden of these conditions highlighted in the research.
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Background: Sudden infant death syndrome (SIDS) still remains one of the leading causes of infant death worldwide, especially in high-income countries. To date, however, there is no detailed information on the global health burden of SIDS.

Aims: To characterize the global disease burden of SIDS and its trends from 1990 to 2019 and to compare the burden of SIDS according to the socio-demographic index (SDI).

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Objectives: To meta-analyse the clinical manifestations, diagnosis, treatment, and mortality of vaccine-induced immune thrombotic thrombocytopenia (VITT) after adenoviral vector vaccination.

Methods: Eighteen studies of VITT after ChAdOx1 nCoV-19 or Ad26.COV2.

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Background: There is a scarcity of literature on the association between physical multimorbidity (i.e., ≥2 chronic physical conditions) and depression among older adults, especially from low- and middle-income countries (LMICs).

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Objectives: To investigate predictors of falls and fractures leading to hospitalisation in people with affective disorders.

Design: Cohort study.

Setting: The South London and Maudsley National Health Service (NHS) Foundation Trust (SLaM) Biomedical Research Centre (BRC) Case Register.

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Alzheimer's disease (AD) results in progressive cognitive decline owing to the accumulation of amyloid plaques and hyperphosphorylated tau. MicroRNAs (miRNAs) have attracted attention as a putative diagnostic and therapeutic target for neurodegenerative diseases. However, existing meta-analyses on AD and its association with miRNAs have produced inconsistent results.

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Incarceration of individuals with mental disorders is an important public health topic. While incarceration appears to be associated with schizophrenia and related psychotic disorders, to the best of our knowledge, no study has examined the association between incarceration and psychotic experiences (PEs). The present study aimed to examine whether individuals with PEs had higher odds of incarceration among a general population sample using data from Baltimore and New York City (N = 974).

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The aim of this systematic review and network meta-analysis is to evaluate the comparative effectiveness of N95, surgical/medical and non-medical facemasks as personal protective equipment against respiratory virus infection. The study incorporated 35 published and unpublished randomized controlled trials and observational studies investigating specific mask effectiveness against influenza virus, SARS-CoV, MERS-CoV and SARS-CoV-2. We searched PubMed, Google Scholar and medRxiv databases for studies published up to 5 February 2021 (PROSPERO registration: CRD42020214729).

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Purpose: Mixed findings exist for sarcopenia/quality of life (QoL) relationship. Moreover, the majority of studies in this area have utilized a cross-sectional design or specific clinical populations. Therefore, the aim of the present study was to examine the association between sarcopenia at baseline and QoL at 10 years follow-up in a large representative sample of older English adults.

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Objective: There are little data on the impact of chronic low back pain (CLBP) on long-term sick leave. Thus, the aim was to investigate the prevalence of and the factors associated with long-term sick leave in working-age adults with CLBP in Germany.

Methods: This retrospective study included adults aged 18-65 years diagnosed for the first time with CLBP in one of 1193 general practices in Germany between 2000 and 2019.

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Autoimmune diseases are disorders that destruct or disrupt the body's own tissues by its own immune system. Several studies have revealed that polymorphisms of multiple genes are involved in autoimmune diseases. Meanwhile, gene therapy has become a promising approach in autoimmune diseases, and clustered regularly interspaced palindromic repeats and CRISPR-associated protein 9 (CRISPR-Cas9) has become one of the most prominent methods.

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Background: Food insecurity is prevalent among college students in the United States and has been associated with mental health problems. However, the literature is not entirely consistent and is missing key aspects of mental health.

Methods: Using cross-sectional data from the Health Minds Study (N = 96,379; September 2020-June 2021), we used multivariable logistic regression to examine associations between food insecurity and several aspects of mental health (i.

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