PT  - JOURNAL ARTICLE
AU  - Lei Li
AU  - Suli Huang
AU  - Yanran Duan
AU  - Peiyi Liu
AU  - Lin Lei
AU  - Yuchen Tian
AU  - Ming Xiang
AU  - Ji Peng
AU  - Jinquan Cheng
AU  - Ping Yin
TI  - Effect of ambient temperature on stroke onset: a time-series analysis between 2003 and 2014 in Shenzhen, China
AID  - 10.1136/oemed-2020-106985
DP  - 2021 May 01
TA  - Occupational and Environmental Medicine
PG  - 355--363
VI  - 78
IP  - 5
4099  - http://oem.bmj.com/content/78/5/355.short
4100  - http://oem.bmj.com/content/78/5/355.full
SO  - Occup Environ Med2021 May 01; 78
AB  - Objective Evidence on the relationship between ambient temperature and morbidity of different stroke subtypes in China is limited. This study aimed to assess the influence of ambient temperature on stroke risk in Shenzhen, China.Methods From 1 January 2003 to 31 December 2014, 114 552 stroke cases in Shenzhen were collected. A generalised additive model with quasi-Poisson regression combined with a distributed lag non-linear model was applied to evaluate the temperature effects on stroke subtypes. Furthermore, this study explored the variability of the effects across sex, age and education.Results The immediate heat effects on ischaemic stroke (IS) and the persistent effects of ambient temperature on intracerebral haemorrhage (ICH) were significant. Overall, the cold-related relative risks (RRs) of IS, ICH and subarachnoid haemorrhage (SAH) were 1.02 (0.97–1.07), 1.16 (1.04–1.30) and 1.12 (0.61–2.04), whereas the heat-related RRs were 1.00 (0.97–1.04), 0.80 (0.73–0.88) and 1.05 (0.63–1.78), respectively. For IS, a weakly beneficial cold effect was found among men while a detrimental heat effect among both men and women, the elderly and higher-educated population at lag0. However, regarding ICH, the temperature effects in men, the young and higher-educated population are stronger at lag0–4, lag0–7 as cold reveals threat and heat reveals protection.Conclusion Responses of diverse stroke subtypes to ambient temperature varied. Effective measures should be taken to increase public awareness about the effects of ambient temperature on stroke attack and to educate the public about self-protection.No data are available.