ArticleBMC public health2024
The association between humidex and tuberculosis: a two-stage modelling nationwide study in China.
Article in BMC public health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Article
- Association between Short-Term Exposure to Humidex and Influenza Incidence in Japan: A Nationwide Time-Stratified Case-Crossover Study.Journal of epidemiology and global health · 2025Article
- Spatiotemporal evolution and impacts of environment on scrub typhus in northern China, 2006-2019.Journal of global health · 2025Article
- The Association of Latent Tuberculosis Infection with Air Pollutant Exposure, Meteorological and Other Factors: A Retrospective Study in Eastern China of College Students.Infection and drug resistance · 2025Article
- Ambient temperature and ozone exposure increases the risk of preterm birth in Northeast China: a time series analysis.Frontiers in public health · 2025Article
- Association of Exposure to Humidex with Schizophrenia Admissions in Qingdao, China: A Time-Series Study.Neuropsychiatric disease and treatment · 2025Article
- Long- and short-run asymmetric impacts of climate variation on tuberculosis based on a time series study.Scientific reports · 2024Article
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Authors and funding
10 authors.
Funding
Abstract
backgroundUnder a changing climate, the joint effects of temperature and relative humidity on tuberculosis (TB) are poorly understood. To address this research gap, we conducted a time-series study to explore the joint effects of temperature and relative humidity on TB incidence in China, considering potential modifiers.
methodsWeekly data on TB cases and meteorological factors in 22 cities across mainland China between 2011 and 2020 were collected. The proxy indicator for the combined exposure levels of temperature and relative humidity, Humidex, was calculated. First, a quasi-Poisson regression with the distributed lag non-linear model (DLNM) was constructed to examine the city-specific associations between humidex and TB incidence. Second, a multivariate meta-regression model was used to pool the city-specific effect estimates, and to explore the potential effect modifiers.
resultsA total of 849,676 TB cases occurred in the 22 cities between 2011 and 2020. Overall, a conspicuous J-shaped relationship between humidex and TB incidence was discerned. Specifically, a decrease in humidex was positively correlated with an increased risk of TB incidence, with a maximum relative risk (RR) of 1.40 (95% CI: 1.11-1.76). The elevated RR of TB incidence associated with low humidex (5th humidex) appeared on week 3 and could persist until week 13, with a peak at approximately week 5 (RR: 1.03, 95% CI: 1.01-1.05). The effects of low humidex on TB incidence vary by Natural Growth Rate (NGR) levels.
conclusionA J-shaped exposure-response association existed between humidex and TB incidence in China. Humidex may act as a better predictor to forecast TB incidence compared to temperature and relative humidity alone, especially in regions with higher NGRs.
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