American Journal of Epidemiology Vol. 144, No. 2: 111-115
Copyright © 1996 by The Johns Hopkins University School of Hygiene and Public Health
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Sudden Infant Death Syndrome and Local Meteorologic Temperature in North Carolina
1State Center for Health and Environmental Statistics, Raleigh, NC
2Department of Biostatistics, School of Public Health, and Carolina Population Center, University of North Carolina Chapel Hill, NC
Reprint requests to Dr. Jack K. Leiss, Public Health Research Division, Analytical Sciences, Inc., 2605 Meridian Parkway, Durham, NC 27713.
The association between meteorologic temperature and sudden infant death syndrome was investigated in the 19821983 North Carolina birth cohort. Maximum daily temperatures recorded at weather stations in the subject's county of residence for each day of the first year of life were entered into hazards models as time-dependent covariates. Risk ratios for a maximum temperature of <53°F (12°C) 5 days before the event compared with a maximum temperature of >53°F were 2.3 (95% confidence interval 1.63.3) for blacks and 1.5 (95% confidence interval 1.02.1) for whites. Similar results were found for minimum daily temperature. The analysis controlled for season of birth, sex, maternal age, maternal education, parity, and birth weight. Am J Epidemiol 1996; 144: 11115.
birth certificates; cohort studies; meteorological factors; proportional hazards models; sudden infant death; temperature; weather
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