Modelling personal temperature exposure using household and outdoor temperature and questionnaire data: Implications for epidemiological studies
作者：喜久 山下, Ka Hung Chan, Yue Niu, Cong Liu, Yitong Guo, Kin‐Fai Ho, Steve Hung Lam Yim, Baihan Wang, Aiden Doherty, Daniel Avery, Pei Pei, Canqing Yu, Dianjianyi Sun, Jun Lv, Junshi Chen, Liming Li, Peng Wen, Shaowei Wu, Hubert Lam, Haidong Kan, Zhengming Chen · 发表于：Environment International · 年份：2024 · DOI：10.1016/j.envint.2024.109060 · 被引用次数：10 · 研究领域：Climate Change and Health Impacts、Air Quality and Health Impacts、Thermoregulation and physiological responses
• Outdoor temperature is a weak proxy of personal temperature in winter. • Personal exposure prediction models achieved R 2 of 0.68–0.92. • Personal and outdoor temperature showed differential associations with heart rate. • Predicted personal temperature showed consistent associations with heart rate. Non-optimal temperature is a leading risk factor for global disease burden. Most epidemiological studies assessed only outdoor temperature, with important uncertainties on personal exposure misclassification. The CKB-Air study measured personal, household (kitchen and living room), and outdoor temperatures in the summer (MAY-SEP 2017) and winter (NOV 2017-JAN 2018) in 477 participants in China. After data cleaning, ∼88,000 person-hours of data were recorded across each microenvironment. Using multivariable linear regression (MLR) and random forest (RF) models, we identified key predictors and constructed personal exposure prediction models. We used generalised additive mixed effect models to examine the relationships of personal and outdoor temperatures with heart rate. The 24-hour mean (SD) personal and outdoor temperatures were 29.2 (3.8) °C and 27.6 (6.4) °C in summer, and 12.0 (4.0) °C and 7.5 (4.2) °C in winter, respectively. The temperatures across microenvironments were strongly correlated (Spearman’s ρ: 0.86–0.92) in summer. In winter, personal temperature was strongly related to household temperatures (ρ: 0.74–0.79) but poorly related to outdoor temperature (ρ: 0.30). ...