Diurnal temperature range as a novel risk factor for sudden infant death.
- Author:
Chen CHU
1
;
WenHao ZHOU
;
YongHao GUI
;
HaiDong KAN
Author Information
- Publication Type:Journal Article
- MeSH: Air Pollutants; analysis; China; epidemiology; Death Certificates; Humans; Humidity; Infant; Infant, Newborn; Nitrogen Dioxide; analysis; Ozone; analysis; Particulate Matter; analysis; Risk Factors; Sudden Infant Death; epidemiology; etiology; Sulfur Dioxide; analysis; Temperature
- From: Biomedical and Environmental Sciences 2011;24(5):518-522
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo assess the relationship between diurnal temperature range (DTR) and sudden infant death (SID) between 2001 and 2004 in Shanghai, China.
METHODSWe conducted a time-stratified case-crossover analysis to estimate the percent increase of SID associated with changes in DTR after adjustment for daily weather conditions (temperature and relative humidity) and outdoor air pollution.
RESULTSDTR was significantly associated with daily SID. An increase of 1 °C in the current-day (L0) and in the 2-day moving average (L01) DTR corresponds to a 1.56% (95% CI: 0.97%, 2.15%) and a 1.89% (95% CI: 1.17%, 2.60%) increase in SID, respectively.
CONCLUSIONAn increased DTR was associated with an increased risk of SID in Shanghai. More studies are needed to understand the effect of DTR on infant deaths.
