ArticleBMC infectious diseases2019
Seasonality of newly notified pulmonary tuberculosis in Japan, 2007-2015.
Article in BMC infectious diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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18 citing papers in PubMed, 29 citations in OpenAlex.
- Comorbidity profiles and their impact on treatment outcomes in elderly patients with pulmonary tuberculosis: a single-center retrospective cohort study.BMC infectious diseases · 2026Article
- Epidemiological Distribution Characteristics of Tuberculosis Among Older Adults in Chongqing (2020-2024): Spatial-Temporal Analysis.JMIR public health and surveillance · 2026Article
- Prediction of pulmonary tuberculosis case trends among older adults in Chongqing based on time series models.Frontiers in public health · 2026Article
- Effect of population aging on pulmonary tuberculosis burden in Zhejiang Province, China: a population-based study.Frontiers in public health · 2025Article
- Epidemiological characteristics, diagnosis and treatment effect of rifampicin-resistant pulmonary tuberculosis (RR-PTB) in Guizhou Province.BMC infectious diseases · 2024Article
- Estimating the Temporal Epidemiological Trends of Tuberculosis Incidence by Using an Advanced Theta Method.The American journal of tropical medicine and hygiene · 2024Article
- Spatiotemporal analysis and seasonality of tuberculosis in Pudong New Area of Shanghai, China, 2014-2023.BMC infectious diseases · 2024Article
- The Impact of the Seasonal and Geographical Distribution of Tuberculosis in Sicily: A 6-Year Retrospective Study (2018-2023).Journal of clinical medicine · 2024Article
- Factors Associated with Extended Hospital Stay and its Impact on Subsequent Short-term Readmission with Tuberculosis Patients.Archives of Iranian medicine · 2024Observational
- Simple mathematical model for predicting COVID-19 outbreaks in Japan based on epidemic waves with a cyclical trend.BMC infectious diseases · 2024Article
- Increased active pulmonary tuberculosis risk from sharing bong of cannabis: a case-control study from Thailand.Frontiers in public health · 2024Article
- An influence of dew point temperature on the occurrence of Mycobacterium tuberculosis disease in Chennai, India.Scientific reports · 2022Article
- Seasonality of tuberculosis in intermediate endemicity setting dominated by reactivation diseases in Hong Kong.Scientific reports · 2021Article
- Seasonality in extra-pulmonary tuberculosis notifications in Germany 2004-2014- a time series analysis.BMC public health · 2021Article
- Population aging and trends of pulmonary tuberculosis incidence in the elderly.BMC infectious diseases · 2021Article
- The relationship between seasonality, latitude and tuberculosis notifications in Pakistan.BMC infectious diseases · 2021Article
- Estimating the Effects of the COVID-19 Outbreak on the Reductions in Tuberculosis Cases and the Epidemiological Trends in China: A Causal Impact Analysis.Infection and drug resistance · 2021Article
- Trend Analysis And Seasonality Of Tuberculosis Among Patients At The Hiwot Fana Specialized University Hospital, Eastern Ethiopia: A Retrospective Study.Risk management and healthcare policy · 2019Article
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Authors and funding
3 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe seasonality of pulmonary tuberculosis (TB) incidence may indicate season-specific risk factors that could be controlled if they were better understood. The aims of this study were to elucidate how the incidence of TB changes seasonally and to determine the factors influencing TB incidence, to reduce the TB burden in Japan.
methodsWe assessed the seasonality of newly notified TB cases in Japan using national surveillance data collected between 2007 and 2015. To investigate age and sex differences, seasonal variation was analyzed according to sex for all cases and then by stratified age groups (0-4, 5-14, 15-24, 25-44, 45-64, 65-74, and ≥ 75 years). We used Roger's test to analyze the cyclic monthly trends in seasonal variation of TB incidence.
resultsA total of 199,856 newly notified TB cases (male, 62.2%) were reported over the past 9-year period. Among them, 60.6% involved patients aged ≥65 years. Overall, the peak months of TB incidence occurred from April to October, excluding September. In the analysis stratified by age group, a significant seasonal variation in TB cases was observed for age groups ≥15 years, whereas no seasonal variation was observed for age groups ≤14 years. For female patients aged ≥25 years, the peak TB epidemic period was seen from June to December, excluding November. Male patients in the same age groups exhibited declining TB incidence from September to March.
conclusionsTB incidence exhibits seasonality in Japan for people aged > 15 years and peaks in summer to fall. Monthly trends differ according to age and sex. For age groups ≥25 years, cases in women showed longer peaks from June to December whereas cases in men declined from September to December. These results suggest that the seasonality of TB incidence in Japan might be influenced by health checkups in young adults, reactivation of latent TB infection with aging, and lifestyle habits in older adults. These findings can contribute to establishing the potential determinants of TB seasonality in Japan.
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