Mika Sugiyama, Hiroki Inagaki, Seigo Mitsutake, Takumi Hirata
{"title":"[Health services to prevent undernutrition among older adults in urban areas: Initiatives in Chiyoda City, Tokyo].","authors":"Mika Sugiyama, Hiroki Inagaki, Seigo Mitsutake, Takumi Hirata","doi":"10.11236/jph.25-083","DOIUrl":"10.11236/jph.25-083","url":null,"abstract":"<p><p>Objective As Japan's aging population increases, local initiatives are required to prevent frailty and malnutrition. In FY2024, Chiyoda City implemented a high-risk and population-wide approach focused on malnutrition prevention as part of health services and long-term care prevention for older adults. This report evaluates the implementation and outcomes of the RE-AIM framework to identify its effectiveness and future challenges.Methods A steering committee and working group facilitated cross-departmental and community collaborations. Health and welfare staff received data utilization training to support evidence-based policymaking (EBPM). For the high-risk approach, 43 older adults with a body mass index (BMI) ≤20.0 and recent weight loss were identified using the KDB system. After setting individual goals with registered dietitians, the participants underwent four home visits. The pre- and post-intervention outcomes were assessed using body weight, BMI, WHO-5, CNAQ-J, and CO-DVS. The population approach involved distributing pamphlets and conducting community lectures. Quantitative and qualitative data were analyzed using the RE-AIM model.Results In the high-risk approach, 25 of the 43 identified individuals participated and 20 completed the program (retention rate; 80%). Although there were no statistically significant changes in health indicators, 30% of the participants gained >1 kg of body weight and approximately 75% reported positive behavioral changes, suggesting significant support was provided. Collaboration with community support centers has led to additional services, such as long-term care applications and assistance for isolated individuals. In the population approach, 2,940 copies of promotional and educational pamphlets were distributed, and 271 residents received information via lectures and individual consultations; >90% of the participants found the content useful. This project collaborated with the Community Life Support Coordination Program. Data utilization training confirmed the increased awareness of KDB system utilization in business operations and policy planning based on data.Conclusion This initiative has shown promising results as a community-based integrated care model through data-driven targeting, multi-sector collaboration, and individual- and population-level interventions. Building a sustainable system requires personalized support, ICT utilization, outreach to middle-aged and harder-to-reach groups, and further integration with existing services.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"717-728"},"PeriodicalIF":0.0,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147678900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Exploring the relationship between women's experiences of negative support and their capacity to receive support during pregnancy and child-rearing: A mixed-methods study].","authors":"Miyako Kimura, Kazushige Ide, Toshiyuki Ojima","doi":"10.11236/jph.26-071","DOIUrl":"https://doi.org/10.11236/jph.26-071","url":null,"abstract":"<p><p>Objectives This study investigated women's capacity to receive support and its relationship with negative support experiences during pregnancy through child-rearing using a mixed-methods approach. The study also sought to derive the practical implications of transforming negative support into positive support.Methods An Internet-based survey was conducted in February 2020 targeting 4,700 mothers (aged 20-49 years) of infants and preschool-aged children across all 47 prefectures of Japan, with 100 respondents recruited from each prefecture. Quantitative data were analyzed using Poisson regression analysis, with the capacity to receive support as the dependent variable and experience of negative support as the independent variable. Covariates included demographic and socioeconomic attributes (mother's age, household income, educational background, employment status, marital status, child's age, and number of children), as well as mental health status. Qualitative data, consisting of open-ended descriptions of negative support experiences, were analyzed using qualitative content analysis. Subsequently, an integrated interpretation was conducted through joint displays using both quantitative and qualitative results.Results In four of the five negative support questions, women who experienced negative support were significantly more likely to have a low capacity to receive support than those who did not experience negative support. The strongest association with the capacity to receive support was observed for negative support related to parenting support (Prevalence ratio [PR]=1.65, 95% confidence interval [CI]: 1.50-1.82, P<0.001). Compared to those with no negative support experiences, women who experienced one type of negative support had a PR of 1.42 (95% CI: 1.25-1.61, P<0.001), and those who experienced two or more types had a PR of 2.11 (95% CI: 1.92-2.33, P<0.001). Through a joint display, an integrated interpretation was presented using qualitative case examples of negative support experiences among women with a low capacity to receive support. This analysis revealed part of the process by which women who were unable to obtain the support they sought gradually disengaged from seeking support.Conclusion Health care and parenting support providers may need to raise awareness about the types of support that are perceived as negative and promote a shift toward providing more positive support.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Association between the stringency of local ordinances and regulations governing public bathhouse facilities and the occurrence of legionellosis in Japan].","authors":"Yusuke Sakata","doi":"10.11236/jph.26-045","DOIUrl":"https://doi.org/10.11236/jph.26-045","url":null,"abstract":"<p><p>Objective Strengthening local ordinances and regulations is considered an important strategy for preventing legionellosis associated with bathing facilities. However, no nationwide study has comprehensively examined the relationship between regulatory stringency and legionellosis occurrence. This study aimed to assess the association between the stringency of local ordinances and regulations governing public bath facilities, measured using an ordinance score, and the occurrence of legionellosis across Japan's 47 prefectures.Methods The ordinance score comprised four domains: water quality testing, facility and equipment standards, hygiene management, and management systems. The score was developed from 31 items identified as relevant to legionellosis occurrence and extracted from Ministry of Health, Labour and Welfare guidelines for hygiene management of public bath facilities. Each item was assigned a score of 1 when prefectural requirements met or exceeded guideline standards and 0 otherwise. Ordinance scores were calculated using prefectural ordinances and regulations available on official websites as of February 2026. Publicly available data were used to calculate 5-year average values for all indicators. Reported legionellosis cases per 100,000 population and the proportion of the population aged ≥50 years were derived from annual data (2020-2024). The number of public bath facilities per 100,000 population, mean annual relative humidity, and annual precipitation were derived from fiscal data (2020-2024). Associations between ordinance scores and reported legionellosis cases per 100,000 population were evaluated using Spearman's rank correlation coefficient. Univariable and multivariable negative binomial regression analyses were conducted with adjustment for selected covariates.Results A significant negative correlation was observed between ordinance scores and reported legionellosis cases per 100,000 population (Spearman's ρ = -0.33, P = 0.022). Higher ordinance scores were significantly associated with fewer reported legionellosis cases per 100,000 population in both univariable and multivariable negative binomial regression analyses. In the multivariable model, the incidence rate ratio was 0.80 (95% confidence interval, 0.70-0.93). None of the covariates showed a statistically significant association with reported legionellosis cases per 100,000 population.Conclusion Prefectures with more stringent ordinances and regulations tended to report fewer legionellosis cases per 100,000 population, suggesting that stronger regulatory frameworks may help prevent legionellosis. This study provides the first nationwide evidence linking regulatory stringency with legionellosis occurrence in Japan. Although strengthening local ordinances and regulations may represent an effective public health strategy, its implementation should balance potential benefits against the operational burden imposed on facility operators.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Factors associated with present and future well-being: The Japanese Civil Servants Study].","authors":"Kimika Nagaoka, Takeshi Tatsuse, Michikazu Sekine, Masaaki Yamada","doi":"10.11236/jph.25-145","DOIUrl":"https://doi.org/10.11236/jph.25-145","url":null,"abstract":"<p><p>Objectives In contemporary society, attention is increasingly being directed toward individual and societal happiness and well-being. Numerous studies have examined the components of, and factors related to, happiness from various perspectives and have informed practical initiatives; however, most studies have focused on analyzing the factors that are associated with current happiness or life satisfaction. Few studies have explored how current perceptions relate to past levels of happiness or the future outlook. Therefore, this study aimed to 1) identify the factors that are associated with current life satisfaction and 2) examine the relationship between current factors and the anticipated future life satisfaction.Methods Data from 3628 civil servants (2,070 men and 1,558 women, average age: 46.0 and 39.4 years, respectively) were analyzed. A total of 3,656 civil servants who participated in the sixth wave of the Japanese Civil Servant Study (response rate: 80.7%) were included in this analysis. Life satisfaction was used as an indicator of well-being. The sex- and age group-stratified distributions of current and future life satisfaction scores were evaluated using one-way analysis of variance. Furthermore, the differences between the current and future life satisfaction scores for each independent variable were examined using Welch's t-tests and one-way analysis of variance. Finally, multiple regression analyses were conducted to determine the predictive factors of current and future life satisfaction.Results The univariate analysis revealed differences in life satisfaction scores for most variables that were used in both the current and future assessments. In multivariate analysis, even after adjusting for past life satisfaction, both individual factors, such as being unmarried and depressive symptoms, and environmental factors, such as dissatisfaction with the workplace environment and work- or family-related stress, showed associations with current life satisfaction in both men and women. In contrast, for future life satisfaction, even after adjusting for current life satisfaction, frequent feelings of loneliness and a compulsive work style were identified as commonly associated factors in both men and women.Conclusion Although factors such as marital status and family conflict were strongly associated with current life satisfaction, they were not related to predictions of future life satisfaction. In contrast, frequent feelings of loneliness and a compulsive work style were identified as distinct factors that were strongly associated with the future outlook. Although further verification through longitudinal studies is necessary, the identification of factors that are associated with current and predicted future life satisfaction constitutes an important finding.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Overview of healthcare workers' mental health during the COVID-19 pandemic and post-pandemic periods in Japan: A disaster industrial health perspective].","authors":"Kouichi Yoshimasu, Megumi Fujieda, Masato Inoue, Sayo Harada, Chieko Ito, Masahiro Yamada","doi":"10.11236/jph.26-035","DOIUrl":"https://doi.org/10.11236/jph.26-035","url":null,"abstract":"","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Feasibility of using municipal data to assess cancer screening uptake rates among people with severe mental illness in Japan].","authors":"Masaki Fujiwara, Yuto Yamada, Taichi Shimazu, Naoki Nakaya, Kiwamu Nagoshi, Masatoshi Inagaki","doi":"10.11236/jph.26-021","DOIUrl":"https://doi.org/10.11236/jph.26-021","url":null,"abstract":"<p><p>Objectives This study examined the availability and readiness of municipal data to assess participation in cancer screening among people with severe mental illness (SMI). In addition, we evaluated the feasibility of linking the Medical Payment for Services and Supports for Persons with Disabilities (MPSS) database and the municipal cancer screening database to calculate cancer screening uptake rates among individuals with schizophrenia spectrum disorder.Methods A two-phase survey was conducted in municipalities in the Kinki, Chugoku, and Shikoku regions of Japan. In Phase 1, municipalities completed a questionnaire on the digitization status of relevant data items in municipal databases, including the MPSS, Mental Disability Certificate (MDC), and municipal cancer screening databases. In Phase 2, municipalities completed a questionnaire assessing the feasibility of generating aggregated data on cancer-screening participation using the MPSS and municipal cancer-screening databases.Results Of the 429 municipalities surveyed, 67 (15.6%) responded to Phase 1. Of these, approximately 90% of the municipalities managed the MPSS and MDC databases as electronic data files; however, among those using electronic systems, primary diagnoses coded using the International Classification of Diseases, 10th Revision (ICD-10) were recorded in only 45% and 34% of the MPSS MDC databases, respectively. The municipal cancer screening database was electronically managed in over 95% of the participating municipalities. Primary screening results were recorded in 99% of patients, and attendance at follow-up examinations was recorded in > 94% of patients. In the Phase 2 questionnaire, 13 municipalities (3.0%) successfully provided aggregated data by linking the MPSS and municipal cancer-screening databases, enabling the calculation of the municipal cancer-screening uptake rate among individuals with schizophrenia spectrum disorders. However, barriers included missing diagnostic information, technical difficulties in linking data across systems, privacy and data governance concerns, and limited human resources.Conclusion Assessing cancer-screening uptake rates among people with SMI using the MPSS and municipal cancer-screening databases is technically feasible in a subset of municipalities. However, several challenges remain including limitations in data item completeness, structural barriers between information systems, and human resource constraints. Continued standardization of local government information systems and improvements in the administrative data infrastructure may enable the use of municipal data to design and evaluate cancer-screening policies that are responsive to the needs of people with SMI.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Reporting quality of online surveys using internet panels: A literature review using Ichushi-Web and evaluation of reporting items].","authors":"Shoichiro Amari, Chika Nishiyama, Seigo Mitsutake, Yoshitaka Nishikawa, Yoshimitsu Takahashi","doi":"10.11236/jph.26-007","DOIUrl":"https://doi.org/10.11236/jph.26-007","url":null,"abstract":"<p><p>Objectives To assess whether articles indexed in the Ichushi-Web database that report online surveys using internet panels provide sufficient methodological information to facilitate appropriate interpretation and evaluate the overall quality of reporting.Methods We operationally defined online surveys using internet panels as cross-sectional or longitudinal online surveys conducted among registered monitoring populations. Based on existing reporting guidelines, namely the Checklist for Reporting Results of Internet E-Surveys (CHERRIES) and the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement, we developed 17 evaluation items considered essential for reporting surveys using internet panels. A literature search for original articles published between 2020 and 2024 was conducted using Ichushi-Web, the online search service of the Japan Medical Abstracts Society. Two researchers independently screened titles and abstracts in the first stage, followed by full-text screening by four researchers to identify articles reporting online surveys using internet panels. Four researchers independently evaluated the included articles using predefined evaluation items, and the results were aggregated and analyzed.Results In total, 165 articles were included in the analysis. General reporting items such as the study period, study population, and ethical approval were adequately reported in most articles. In contrast, only a few articles explicitly stated in the title or abstract that the survey was conducted using an internet panel. Moreover, the key items essential for evaluating reporting quality and transparency, including the participant selection flowchart and information on incentives, were not reported in most articles. The number of invited participants, the number of respondents, the response rate, and the sample size were evenly divided between generally appropriate and not reported. Although the names of survey companies were reported in some articles, the information necessary to assess representativeness, such as the characteristics of the internet panel or the eligibility criteria for panel registration, was rarely provided.Conclusion Many articles identified through Ichushi-Web that reported online surveys using internet panels lacked critical information necessary to evaluate reporting quality and transparency, particularly regarding panel characteristics and potential sources of bias. This study provides an important foundation for organizing reporting items specific to surveys using internet panels and for the future development of reporting guidelines.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Promoting Health and Productivity Management to Achieve the Goals of the Third Health Fukushima 21 Plan: Activity Report].","authors":"Masashi Minami, Megumi Arae, Ayumi Honda, Kenji Muramatsu, Yuji Furui","doi":"10.11236/jph.25-149","DOIUrl":"https://doi.org/10.11236/jph.25-149","url":null,"abstract":"","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Training needs of community comprehensive support center staff to strengthen community-based integrated care].","authors":"Fuwa Nogawa, Chiyori Haga, Kaori Kojima, Toshiyuki Ojima","doi":"10.11236/jph.25-059","DOIUrl":"10.11236/jph.25-059","url":null,"abstract":"<p><p>Objectives Extending healthy life expectancy represents a critical public health priority in Japan. Achieving this goal requires Community Comprehensive Support Center (CCSC) staff to develop competencies in building and managing community-based integrated care systems that promote mutual resident support. This study aimed to identify training challenges and future needs related to community development among CCSC staff nationwide.Methods Focus group interviews (FGIs) were conducted with CCSC staff. Verbatim transcripts underwent thematic analysis to extract and categorize staff-identified training needs.Results Twenty-four staff members (mean age: 44.6 years; seven public health nurses, eight care managers, six social workers, one occupational therapist, one physical therapist, one nurse) from five CCSCs (two directly managed, three commissioned) participated in the study. Analysis of the FGI transcripts yielded 132 codes organized into five categories: (1) fostering resident independence, mutual support relationships, and community acceptance to establish integrated care systems; (2) advancing community activities using the Plan-Do-Check-Act (PDCA) cycle; (3) developing skills to secure community resources and engage in continuous self-improvement; (4) enhancing skills to support individuals with complex, challenging problems; and (5) promoting inclusive society by addressing regional disparities.Conclusion CCSC staff require enhanced skills in fostering resident independence and mutual support to reduce regional disparities and promote social inclusion. Findings emphasize the need for practical, on-the-job training methods, including case studies, to strengthen data-driven PDCA implementation and improve ethical decision-making in complex cases. Developing and implementing targeted training programs is essential to address identified needs and effectively advance community-based integrated care systems.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"604-613"},"PeriodicalIF":0.0,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147357792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Possible factors associated with postpartum weight changes and weight retention].","authors":"Rika Shiroto, Miki Miyoshi","doi":"10.11236/jph.25-043","DOIUrl":"10.11236/jph.25-043","url":null,"abstract":"<p><p>Objectives Focusing on maternal weight change from pre-pregnancy to 18 months postpartum, this study aimed to explore the possible factors associated with postpartum weight retention to provide obesity prevention strategies for women.Methods A cross-sectional survey was conducted from July to November 2021. Data were obtained from 543 mothers who attended health checkups for 18-month-old infants in 16 Aomori Prefecture municipalities using self-administered questionnaires. Study components included basic maternal characteristics and information on infants at birth and mothers after childbirth. Postpartum weight retention was defined as weight retention <2 kg at 18 months postpartum. Comparative analysis of maternal weight and body mass index (BMI) between the retention and non-retention groups was performed using the Mann-Whitney U test. Factors associated with postpartum weight retention were examined using the χ<sup>2</sup> test, Fisher's exact test, and logistic regression analysis.Results Maternal weight retention distribution at 18 months postpartum was 132 (59.5%) in the retention group and 90 (40.5%) in the non-retention group. Statistically significant differences between groups were observed for age (P < 0.05), employment status (P < 0.05), weight gain against pre-pregnancy BMI (P < 0.05), current breastfeeding status (P < 0.05), and BMI at 18 months postpartum (P < 0.01). Logistic regression analysis with weight retention as the dependent variable showed that unemployment (odds ratio [OR]: 3.76, 95% confidence interval [Cl]: 1.41-10.07), weight gain exceeding recommendations (OR: 3.31, 95% Cl: 1.39-7.90), current breastfeeding (OR: 3.32, 95% Cl: 1.34-8.20), and obesity at 18 months postpartum (OR: 6.06, 95% Cl: 2.49-14.73) were associated with non-retention. No association was observed with health guidance on weight management at municipalities or medical institutions.Conclusion This study revealed that employment status, weight gain during pregnancy, current breastfeeding status, and BMI at 18 months postpartum were possible determinants of maternal postpartum weight retention. These findings suggest that regular maternal weight monitoring beyond postnatal checkups and providing support according to living and childcare environments are necessary.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"635-644"},"PeriodicalIF":0.0,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147516364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}