Analysis of the association between diurnal temperature difference and relative humidity and myocardial infarction in Shantou residents
10.3760/cma.j.cn112338-20230404-00217
- VernacularTitle:昼夜温差和相对湿度与汕头市居民急性心肌梗死之间的关联性分析
- Author:
Ziyi SONG
1
;
Guangxing XU
;
Yanhu JI
;
Liping LI
Author Information
1. 汕头大学公共卫生学院，汕头 515041
- Keywords:
Acute myocardial infarction;
Distribution lag nonlinear model;
Diurnal temperature range;
Relative humidity
- From:
Chinese Journal of Epidemiology
2023;44(10):1622-1627
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the effect of meteorological conditions on mortality and population susceptibility of patients with acute myocardial infarction (AMI) in the Shantou area and to provide a scientific basis for the local public health system to prevent AMI.Methods:The AMI mortality data recorded in the resident cause of death surveillance database of Shantou from January 1, 2015, to December 31, 2020, were collected and the distribution lag nonlinear model was used to analyze the diurnal temperature range (DTR) and relative humidity (RH) on AMI mortality and the lag effect.Results:There were 13 932 deaths due to AMI in Shantou during the study period, with a male-to-female sex ratio of 1.3∶1. There was a significant association between high diurnal temperature difference exposure and low RH exposure and AMI deaths, with both single-day lag effects appearing and reaching a maximum at lag 2 day ( RR=1.019, 95% CI: 1.000-1.039; RR=1.018, 95% CI: 1.003-1.034); the cumulative lag effect was all maximal at lag 0-14 day ( RR=1.199, 95% CI: 1.025-1.401; RR=1.279, 95% CI: 1.117-1.465). The elderly (≥75 years) and female populations were susceptible to high DTR exposure and low RH exposure conditions. Conclusions:There was a significant association between DTR and RH and mortality of AMI in Shantou with a significant lag in their effects. Both female and elderly populations ≥75 years old were susceptible populations under high DTR and low RH exposure conditions.
