Effects of large temperature change lasting for several days on cardiovascular disease hospital admissions among farmers in China’s Western villages

ABSTRACT

Global climate change has resulted in an increase in the frequency, intensity, and duration of extreme events. However, we know very little about the associations between large temperature changes lasting for several days (LTCD) and CVD, particularly in less-developed, rural areas. We collected daily data on cardiovascular-related diseases and weather conditions from 119 villages in seven counties between 2010 and 2016. A distributed lag non-linear model was used to investigate the association between LTCD and relative risk (RR) of hospital admissions for CVD. Analyses were stratified by the duration and intensity of LTCD, age, and sex. The RR of CVD increases with the intensity and duration of LTCD. Men and young people were more vulnerable to LTCD of longer duration and higher intensity than women and old. Our findings may help local public health authorities develop adaptive preventive strategies targeting inhabitants of villages.

KEYWORDS:

• Large temperature changes lasting for several days
• diurnal temperature change
• cardiovascular disease
• distributed lag nonlinear model
• farmer

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data Availability

Data are available from the authors upon reasonable request and with permission from the New Rural Cooperative Medical System.

Additional information

Funding

This was supported by the National Natural Science Foundation of China [71861026] and Natural Science Foundation of Gansu Province [20JR10RA149]