[Nihon koshu eisei zasshi] Japanese journal of public health最新文献

{"title":"[Analysis of hospitalization status by major classification according to ICD-10 among public assistance recipients considering sex and age].","authors":"Hideyuki Watanabe, Masaaki Matsunaga, He Yupeng, Atsuhiko Ota, Li Yuanying, Kotaro Kuwaki, Shinichi Tanihara","doi":"10.11236/jph.24-068","DOIUrl":"https://doi.org/10.11236/jph.24-068","url":null,"abstract":"<p><p>Objectives　We evaluated the number of hospitalizations among public assistance recipients for each major classification according to the International Classification of Diseases 10th Revision (ICD-10), adjusting for sex and age differences in the general Japanese population. This study aimed to provide a comprehensive assessment of hospitalization patterns among public assistance recipients by disease category.Methods　We used indirect methods to adjust for sex and age, with public assistance recipients and the entire Japanese population as the observation and reference groups, respectively. We calculated the standardized hospitalization ratios (SHRs) for each major classification based on the ICD-10. We only used publicly available government statistics, including data from the 2020 Patient Survey, for hospitalization rates according to sex, age, and major classification. Additionally, we used data from the 2020 National Survey on Public Assistance Recipients conducted for the number of public assistance recipients by sex and age groups and data from the 2020 Survey on the Actual Status of Medical Assistance conducted for the number of hospitalizations by major classification.Results　After adjusting for age, the overall SHR was 1.49. The major classifications with the high SHRs for men and women were \"V. Mental and behavioural disorders\" (SHR for men; 4.06, women; 3.45) and \"IV. Endocrine, nutritional, and metabolic diseases\" (SHR for men; 2.40, women; 1.47). Conversely, the major classifications with low SHRs were \"XVI. Certain conditions originating in the perinatal period\" (SHR; 0.43) and \"VII. Diseases of the eye and adnexa\" (SHR; 0.44) for men. For women, these were \"XV. Pregnancy, childbirth, and the puerperium\" (SHR; 0.17) and \"VII. Diseases of the eye and adnexa\" (SHR; 0.27).Conclusion　After adjusting for age, hospitalization status among public assistance recipients was higher overall than in the general Japanese population. However, if divided based on major classifications, higher and lower rates were observed compared with the general population. In assessing the status of medical assistance for public assistance recipients, research should be conducted by disease classification, considering the significant differences in age composition between public assistance recipients and the general Japanese population.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878716","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":"[Examination of the reliability and validity of the Japanese version of the patient self-advocacy scale for psychiatric users].","authors":"Yui Hamada, Masako Kageyama, Keiko Yokoyama","doi":"10.11236/jph.24-063","DOIUrl":"https://doi.org/10.11236/jph.24-063","url":null,"abstract":"<p><p>Objective　In 2020, > 6 million individuals with mental disorders received psychiatric care. Advocacy is important to ensure that the rights of psychiatric patients, for whom involuntary hospitalization sometimes occurs, are maintained. This study aimed to develop a Japanese version of the Patient Self-Advocacy Scale (PSAS) by Brashers et al. to measure the degree of patient self-advocacy and examine its reliability and validity.Methods　Five researchers translated the original PSAS into Japanese. The translated questionnaire was piloted with five psychiatric users and further revised. The revised content was back-translated by a professional translator and checked by the original author. An online questionnaire was administered to verify the validity and reliability of the completed Japanese PSAS. The questionnaire was distributed to individuals who received mental health services on a mailing list. Some respondents were asked to complete the questionnaire a second time to examine the reliability of the retest method. Reliability was examined by calculating Cronbach's alpha coefficients for the entire scale and subscales and evaluating the results of the correlation coefficients with the retest. For validity, exploratory and confirmatory factor analyses were conducted, and correlation coefficients were calculated using related scales (the Japanese versions of the Desirability of Control, Desire for Autonomy, and Health Locus of Control scales).Results　The questionnaire received 214 responses, and the test-retest questionnaire received 48 responses. Most respondents had been diagnosed with mood disorders (48.1%) or schizophrenia (40.7%), and 46.8% had been receiving psychiatric care for > 10 years. Cronbach's alpha coefficients for the overall scale and subscale analyses and correlation coefficients for retests ranged from 0.66-0.83 and 0.69-0.84, respectively. Regarding validity, exploratory factor analysis revealed three factors with items similar to those in the original version, and confirmatory factor analysis showed goodness of fit (CMIN/DF = 2.834, GFI = 0.896, AGFI = 0.841, RMSEA = 0.093, AIC = 198.542, CFI = 0.888). Correlations with relevant scales were significant with those of most subscales.Conclusion　The Japanese PSAS was valid and reliable. This scale can be used to assess self-advocacy among psychiatric users and may help understand attitudes toward rights and advocacy.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878723","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 restarting or continuing community activities for older adults during the COVID-19 pandemic].","authors":"Kumiko Nonaka, Sachiko Murayama, Keiko Sugiura, Hiroshi Murayama","doi":"10.11236/jph.24-059","DOIUrl":"https://doi.org/10.11236/jph.24-059","url":null,"abstract":"<p><p>Objective　This study examined the factors associated with the status of group activities provided to older adults during the COVID-19 pandemic by community groups aiming to improve the health and social interactions of older adults. Methods　A mail survey was conducted with 372 leaders of neighborhood associations and Senior Citizen Clubs in November 2020 in Ward A, Tokyo. The questionnaire asked leaders about the status of group activities provided by neighborhood associations and the aforementioned clubs for older adults. Leaders responded regarding their group's activity status from April to October 2020 based on three patterns: 1) suspending the activity, 2) carrying out the activity by modifying the content, and 3) performing the activity without modifying the content. Data from 206 groups were analyzed. A latent class analysis (LCA) was performed using activity status to classify each group's activity patterns, and a multiple logistic regression analysis was conducted using activity patterns as dependent variables. Variations in activity content, activity frequency, the average number of participants and volunteers, having participants over 80 years old in the group, and the group's social capital were assigned as covariates. We also included the communication frequency between the volunteers and participants before COVID-19 and during the first state of emergency as covariates. Missing values were supplemented using a multiple imputation model. Results　Four patterns were identified from the LCA results: \"suspended the activity\" from April to October, \"restarted the activity with modified content\" from a specific month, \"continued the activity with modified content\" from April to October, and \"continued/restarted the activity without modified content\" from April to October. The multiple logistic regression, with \"suspended the activity\" as a reference group, demonstrated that a communication frequency of more than once a week was associated with \"continued the activity with modified content\" (odds ratio: = 5.25, 95% confidence interval (CI) = 1.19-23.21), and \"continued/restarted the activity without modified content\" (OR = 4.37, 95%CI = 1.07-17.82). In addition, carrying out the activity more than twice a month (OR = 3.12, 95%CI = 1.10-8.87) and having 6-10 volunteers (OR = 0.32, 95%CI = 0.11-0.89) were associated with \"restarted the activity with modified content.\"Conclusion　This study emphasizes the importance of communicating with participants more than once a week and having fewer volunteers to restart or continue group activities during the COVID-19 pandemic. The study findings can guide municipal governments and public health professionals in assisting community groups during emergencies, such as the COVID-19 pandemic.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878724","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":"[Changes in roles and feelings among \"Kaigoyobou leaders\" responsible for community prevention activities over 10 years].","authors":"Hisashi Kawai, Atsushi Fukushima, Seigo Mitsutake, Manami Ejiri, Shuichi Obuchi","doi":"10.11236/jph.23-108","DOIUrl":"10.11236/jph.23-108","url":null,"abstract":"<p><p>Objectives　Community residents experience changes over time, including those in the care prevention system, governmental expectations, and their motivations. To support community-based prevention activities, it is necessary to clarify these changes. This study used a qualitative research method to examine changes in roles and feelings among \"Kaigoyobou leaders\" who had been involved in community-based care prevention activities for 10 years.Methods　The study participants were nine leaders (six men and three women) who had been active in community-based care prevention for approximately 10 years. Through one-hour semi-structured interviews, we explored their current activities, reasons for taking the leader training course, changes in the content of their activities since completing the course, changes in their roles in activities and feelings about the activities, and what they recognized as important in their activities. Interviews were transcribed verbatim and analyzed using a modified grounded theory approach. From the transcripts, we extracted \"concepts\" related to changes among the leaders and generated \"categories\" to summarize the concepts.Results　The analysis identified 28 concepts summarized into 12 categories. The categories included: \"belief in the activities\" (e.g., \"focusing on preventive effects\"), \"learning through trial and error\" (e.g., \"learning continuously\"), \"developing the activities\" (e.g., \"expanding the activities\"), \"commitment to the community\" (e.g., \"valuing connections with people involved in the activities\"), \"increasing required roles\" (e.g., \"taking consultations from juniors\"), \"relationship with the government\" (e.g., \"responding to requests from the government\"), \"benefits from the activities\" (e.g., \"receiving a sense of accomplishment and satisfaction from the activities\"), \"burden due to the activities\" (e.g., \"a shortage of group members\"), \"aging of stakeholders\" (e.g., \"increasing age of the participants\"), \"preparing for continuity\" (e.g., \"new people wishing to participate\"), \"considering ending activities\" (e.g., \"reducing activities due to increasing age of the leaders themselves\"), and \"impact of the coronavirus.\"Conclusion　Leaders' strong belief in their activities and their ability to adapt based on successful experiences were crucial. They responded effectively to environmental changes, including evolving government relationships. Fostering leadership belief, highlighting the benefits of activities, and supporting collaborative responses to environmental changes are essential for ongoing success.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"692-703"},"PeriodicalIF":0.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141903788","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":"[Involvement of public health nurses in supporting mothers after maternity health checkups].","authors":"Ayaka Matsuoka, Keiko Yamazaki, Emiko Aoshima","doi":"10.11236/jph.23-091","DOIUrl":"10.11236/jph.23-091","url":null,"abstract":"<p><p>Objectives　This study aimed to analyze and clarify the role of public health nurses (PHNs) in assisting mothers who need assistance during antenatal checkups.Methods　This study was conducted in core city, A. The study participants were PHNs who experienced supporting at least three mothers who required support during maternity health checkups. We interviewed the respondents about their observations, decision points, difficulties in coordination, and other aspects of support. Data were extracted from verbatim transcripts and analyzed inductively.Results　Sixteen PHNs participants had an average of 9.3 years of experience. The analysis included 10 categories, 43 subcategories, and four themes. PHNs connected with mothers early depending on the mothers' wants, based on information gathered during the gestational period (theme 1). PHNs make early telephone visits to mothers based on information obtained during the gestational period. If the mother did not respond to the initial visit, the PHNs attempted to establish contact through other means.PHNs carefully observed and assessed mothers' childcare routines and mental and physical conditions (theme 2). To assess the mothers' mental health status, they were interviewed in detail using the Edinburgh postnatal depression scale. Determining the mother's condition was challenging; therefore, several PHNs conducted multiple visits and repeated the observations to achieve accurate assessments.The PHNs stayed close to their mothers and carefully supported them toward independence while assessing their progress (theme 3). PHNs established trusting relationships with mothers.PHNs served as coordinators in resolving problems and provided ongoing support in cooperation with medical institutions and related organizations (theme 4). The PHNs carefully coordinated consultations and encouraged mothers to consult psychiatrists if appropriate. Conclusion　Although PHNs provided attentive care to mothers requiring assistance, difficulties arise in accurately diagnosing postpartum depression and connecting mothers to psychiatric services. Guidelines that standardize the assessment of and responses to mental health issues are required. It is necessary to organize the problems faced by mothers and develop a system of cooperation among various organizations.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"682-691"},"PeriodicalIF":0.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142302172","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":"[Telephone navigation and health check attendance among public assistance recipients: Lessons from two-year effort in Toyonaka City].","authors":"Daisuke Nishioka, Shoko Takemoto","doi":"10.11236/jph.24-037","DOIUrl":"10.11236/jph.24-037","url":null,"abstract":"<p><p>Objective　Poverty is a significant health determinant. As public assistance recipients experience difficulties in health management, a healthcare management support program to provide health checks has been implemented by welfare offices in Japan since 2021. However, effective approaches to maximize health check rates are limited. This study aimed to identify the impact of telephone navigation on recipients' health check-receiving behaviors, using data from welfare offices in Toyonaka City.Methods　This study included recipients aged 40-60 years who received telephone navigation for health check programs in 2021 and 2022. In 2021, telephone navigation was provided to eligible recipients. In 2022, the recipients were divided into two groups based on their household identification numbers (even/odd). We examined the difference in the health check rate in 2021 depending on whether the navigation system was connected. Additionally, we examined the differences across groups and navigation periods in 2022.Results　In 2021, 32 (7.9%) recipients received health checks. Twenty-six (10.2%) of the 255 recipients and six (4.1%) of the 148 recipients in the navigated and non-navigated groups, respectively, underwent health checks. In the navigated group, health check rates were higher among recipients in their 50s (13.3% vs. 3.1%; P = 0.006), unemployed recipients (13.9% vs. 3.6%; P = 0.014), those who did not receive previous health checks (9.1% vs. 1.5%; P = 0.003), and those who did not receive regular medical consultations (8.3% vs. 0%; P = 0.012). In 2022, 247 and 225 patients were assigned to the odd- and even-numbered groups, respectively, with no differences in their characteristics. During the intervention period, four (1.6%) of the 247 recipients and 10 (4.6%) of the 219 recipients in the odd- and even-numbered groups, respectively, underwent health checks. During the non-intervention period, five (2.1%) and six (2.7%) recipients of the odd- and even-numbered groups, respectively, underwent health checks. Health check rates were higher toward the deadlines. The estimated conditional odds ratio for receiving the health checks by the navigation was 1.35 (95% confidence interval; 0.59-2.93, P = 0.503).Conclusion　Telephone navigation may be effective in some recipients. Meanwhile, targeting recipients with attributes, such as \"in their 50s,\" \"unemployed,\" \"received no previous health checks,\" and \"received no regular medical consultations\" may increase the response rate. Therefore, policymakers should consider using reliable telephone navigation methods and navigating near deadlines.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"713-720"},"PeriodicalIF":0.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142302182","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":"[A longitudinal study among female college students' eating behaviors and food group intake based on the change in eating habit stages].","authors":"Junichi Kasamaki, Yoshiko Kasahara","doi":"10.11236/jph.24-012","DOIUrl":"10.11236/jph.24-012","url":null,"abstract":"<p><p>Objectives　This study aimed to longitudinally determine the eating behavior and food group intake of female students to examine the relationship between eating behaviors and intention to improve eating habits (change in eating habits stages) and help health education use the behavior change theory.Methods　This one-year longitudinal study included 130 female students from Japanese colleges. The stage at which eating habits and behaviors (skipping breakfast, eating out, instant food intake, and snacking) and intake of food groups rich in protein, calcium, vitamins, minerals, carbohydrates, and fats and oils were assessed. The stages were as follows; pre-contemplation or contemplation (lower group), preparation (middle group), and action or maintenance (upper group). A self-assessment questionnaire was administered to evaluate eating behaviors and food group intake frequencies using a 5-point Likert scale. P-values of <.05 were considered statistically significant.Results　A cross-sectional comparison of eating behaviors and food group intake scores demonstrated significant differences between the stages only in snacking behavior. The upper group consumed snacks significantly less frequently than the middle and lower groups. After one year, a longitudinal comparison of eating behaviors and food group intake scores revealed significant differences in the intake of food groups rich in vitamins and minerals (green and yellow vegetables), fats and oils in the pre-contemplation stage, intake of food groups rich in vitamins/minerals (green and yellow vegetables) and frequency of skipping breakfast in the preparation stage, and frequency of eating out and snacking in the action stage. Each stage demonstrated a decreasing trend in food intake and an increasing trend in the frequency of skipping breakfast, eating out, and snacking. The percentages of students whose eating habits stage dropped during the second year were 49.0%, 100%, and 77.8% in the preparation, action, and maintenance stages, respectively. This indicates that there are cases in which readiness reverses in stages with improved eating habits.Conclusion　In health education on eating habits, it is vital to understand the changes in eating habit stages for each eating behavior and details of actual eating behaviors and habits. Thus, health education should align to the needs of each individual to support them in transforming and maintaining a higher stage of change in their eating habits.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"704-712"},"PeriodicalIF":0.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142302168","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 financial anxiety and subjective health and physical fatigue perceptions among mothers of 18-month-old infants].","authors":"Yasue Ogata, Yoshie Yokoyama","doi":"10.11236/jph.24-006","DOIUrl":"10.11236/jph.24-006","url":null,"abstract":"<p><p>Objective　Poverty is a factor that affects children's health through its role in parental depression and stress. While the association between financial status and depression or quality of life scores of mothers has been previously reported in Japan, no study has focused on mothers' subjective health and physical fatigue perceptions. This study aimed to examine the relationship between mothers' financial anxiety and subjective health and physical fatigue perceptions.Methods　We conducted a survey in parents attending routine health checkups for their 18-month-old infant in a single area of City A between November 2017 and October 2019. After excluding those for whom the required analysis data were missing, we analyzed data from 779 parents who responded to the survey and consented to the use of their children's health checkup data. The response variables were maternal subjective health and physical fatigue perceptions, and the explanatory variables were the presence of financial anxiety in mothers at their child's 3- or 18-month health checkups and financial anxiety situation in both periods. Financial anxiety was classified into four groups according to status at the 3- and 18-month time points. The independence of the qualitative variables among these four groups was verified using Fisher's exact test, and the relationship between financial anxiety and maternal subjective health and physical fatigue perceptions was evaluated using logistic regression analysis.Results　Financial anxiety was present in 54 mothers (6.9%) and 46 mothers (5.9%) at the 3- and 18-month checkup, respectively. Analysis of financial anxiety in both periods showed that 695 mothers (89.2%) had no financial anxiety at either time point, 30 (3.9%) had financial anxiety only at the 18-month checkup, 38 (4.9%) had financial anxiety only at the 3-month checkup, and 16 (2.1%) had financial anxiety at both time points. At the 18-month checkup, the odds ratios of poor subjective health and severe physical fatigue perceptions were 3.85 (95% confidence interval [CI]; 1.34-11.05) and 6.58 (95% CI; 2.18-19.85), respectively, among the mothers who had financial anxiety at both time points compared to those who had no financial anxiety at either time point.Conclusion　Financial anxiety may affect mothers' health. Therefore, mothers should be provided with solution-oriented support geared toward mitigating financial anxiety, in coordination with affiliated organizations, if financial anxiety is detected.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"673-681"},"PeriodicalIF":0.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141903787","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":"[A large epidemiological study on human papillomavirus vaccine post-vaccination symptoms and healthy vaccinee bias].","authors":"Sadao Suzuki","doi":"10.11236/jph.24-053","DOIUrl":"10.11236/jph.24-053","url":null,"abstract":"<p><p>Objective　This study aimed to examine the existence of healthy vaccinee bias, a source of distortion in the evaluation of vaccine efficacy, through analysis without random assignment using real data on post-vaccination symptoms from the Nagoya Study, a large epidemiological study of human papillomavirus (HPV) vaccine post-vaccination symptoms.Methods　For three school years of individuals born in 1997, 1998, and 1999, as the HPV vaccine had a 2-year target period, 3,246 were first vaccinated at age 14 years and 3,961 were unvaccinated. The proportion of symptom onset in these 7,207 individuals during the unvaccinated period at age 13 years was compared by birth year to examine the presence of a healthy vaccinee bias.Results　Only four symptoms were significantly higher among unvaccinated participants, such as the proportion of \"severe headache,\" which occurred in 2010 among those born in 1997, \"hyperventilation,\" which occurred in 2011 among those born in 1998, \"fatigue\" and \"sudden vision loss,\" which occurred in 2012 among those born in 1999. Healthy vaccinee biases are rarely observed.Conclusion　Underestimation of the odds ratio of HPV vaccination due to healthy vaccinee bias is limited, and the claim that the supposedly high odds ratio in the Nagoya Study was masked by a healthy vaccinee bias is invalid.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"667-672"},"PeriodicalIF":0.0,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142302167","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":"[Long-term trends of occupational physical activity intensity in Japan].","authors":"Ayaka Fujitani, Masamitsu Kamada","doi":"10.11236/jph.24-028","DOIUrl":"10.11236/jph.24-028","url":null,"abstract":"<p><p>Objectives　Although physical inactivity is a global concern, quantitative data on its long-term trends in physical activity (PA) are limited. This study aimed to estimate long-term trends in the intensity of occupational PA, constituting the largest portion of PA in Japan.Methods　Data on the number of workers in Japan by occupational category were obtained from the Labour Force Survey. PA intensity (metabolic equivalents [METs]) was assigned to 329 occupations in the Japanese Standard Occupational Classification based on the methods and data of Tudor-Locke et al. (2011), and representative intensity values for 11 occupational categories were calculated. Based on intensity, occupational categories were reclassified into sedentary (≤1.5 METs), light (1.6-2.9 METs), and moderate (≥3 METs). Trends in the prevalence of workers in each category were analyzed, along with the annual mean occupation-related METs from 1953 to 2022. The mean occupation-related METs represented the weighted average of PA intensity, calculated based on the annual worker population for each occupational category. Results　From 1953-2022, the prevalence of moderate-intensity occupations significantly declined, whereas sedentary and light-intensity occupations increased. The mean occupation-related METs decreased continuously for 70 years. During the 48-year period from 1962 to 2010, when there were no major changes in occupational classification methods, there was a decline of 0.25 METs, representing a 9.6% decrease, from 2.60 to 2.35 METs.Conclusion　Over the past 70 years, occupations in Japan have transitioned to ones with lower PA intensity. Consequently, the average PA intensity across all occupations decreased by at least one-tenth. Since this study assumes a constant intensity for each occupation, the actual decline in occupational PA intensity may be even more significant because of societal automation.</p>","PeriodicalId":72032,"journal":{"name":"[Nihon koshu eisei zasshi] Japanese journal of public health","volume":" ","pages":"606-614"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141903791","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}