title: Diurnal temperature range as a novel risk factor for sudden infant death.
abstract: OBJECTIVE
  To assess the relationship between diurnal temperature range (DTR) and sudden infant death (SID) between 2001 and 2004 in Shanghai, China.
  
  
  METHODS
  We 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.
  
  
  RESULTS
  DTR 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.
  
  
  CONCLUSIONS
  An 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.
authors: Cardiovascular Center, Children's Hospital of Fudan University, Shanghai 201102, China.
authors: Chen
authors: C
authors: Chu
authors: WenHao
authors: W
authors: Zhou
authors: YongHao
authors: Y
authors: Gui
authors: HaiDong
authors: H
authors: Kan
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D002681:China / Q000453:epidemiology; D003644:Death Certificates; D006801:Humans; D006813:Humidity; D007223:Infant; D007231:Infant, Newborn; D009585:Nitrogen Dioxide / Q000032:analysis; D010126:Ozone / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis; D012307:Risk Factors; D013398:Sudden Infant Death / Q000453:epidemiology / Q000209:etiology*; D013458:Sulfur Dioxide / Q000032:analysis; D013696:Temperature
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter; D013458:Sulfur Dioxide; D010126:Ozone; D009585:Nitrogen Dioxide