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Effect of ambient temperature on SIDS rate
S C Anderson1, W G Murrell, C C O'Neill
1Department of Microbiology, University of Sydney, NSW.
The Medical Journal of Australia
|May 17, 1993
Summary
Sudden infant death syndrome (SIDS) rates significantly increase during colder months. Lower daily temperatures are strongly linked to higher SIDS occurrences, indicating temperature
Area of Science:
- Environmental Health
- Pediatrics
- Epidemiology
Background:
- Sudden infant death syndrome (SIDS) remains a significant concern in infant mortality.
- Environmental factors, such as temperature, may influence SIDS risk.
Purpose of the Study:
- To investigate the association between ambient temperature and the incidence of sudden infant death syndrome (SIDS).
- To determine if temperature variations correlate with SIDS rates.
Main Methods:
- Analysis of all SIDS cases in the Sydney metropolitan area between 1980 and 1989.
- Correlation of SIDS rates with monthly mean minimum and maximum daily temperatures.
Main Results:
- SIDS rates exhibited a greater than threefold variation throughout the year.
- The peak SIDS rate occurred during July, coinciding with the lowest daily temperatures.
- A significant negative linear relationship was observed between SIDS rates and both monthly mean minimum and maximum daily temperatures (P < 0.001).
Conclusions:
- Daily temperature is a significant factor associated with SIDS rates.
- Temperature may serve as an indicator for cold weather conditions impacting SIDS risk.
- The findings suggest a potential direct role of temperature in the etiology of SIDS.