Seasonal relationship of sudden infant death syndrome and environmental pollutants
- Los Angeles County/Univ. of Southern California, Los Angeles
Evidence that chronic hypoxia precedes death from sudden infant death syndrome (SIDS) is mounting. Prolonged exposure to moderate levels of pollutants could be a contributing factor to hypoxia. Levels of carbon monoxide (CO), sulfur dioxide (SO/sub 2/), nitrogen dioxide (NO/sub 2/) and hydrocarbons (HC) are highest in the winter when incidence of SIDS is increased. SIDS cases in Los Angeles County were correlated with daily mean levels of these pollutants, temperature, barometric pressure and monthly lead levels with the aid of time series analyses. Peaks in CO, SO/sub 2/, NO/sub 2/, HC and lead preceded the seasonal increase in SIDS by seven weeks. Theoretical considerations, such as the hypoxia-inducing effects of CO, support the hypothesis that this temporal relation has functional significance. The role of pollution levels as a predisposing factor in risk for SIDS cannot be summarily dismissed.
- OSTI ID:
- 6447921
- Journal Information:
- Am. J. Epidemiol.; (United States), Vol. 113:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
59 BASIC BIOLOGICAL SCIENCES
AIR POLLUTION
SEASONAL VARIATIONS
CARBON MONOXIDE
BIOLOGICAL EFFECTS
DEATH
EPIDEMIOLOGY
HYDROCARBONS
LEAD
NITROGEN DIOXIDE
SULFUR DIOXIDE
AMBIENT TEMPERATURE
ANOXIA
INFANTS
AGE GROUPS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHILDREN
ELEMENTS
METALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION
SULFUR COMPOUNDS
SULFUR OXIDES
VARIATIONS
560306* - Chemicals Metabolism & Toxicology- Man- (-1987)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
550100 - Behavioral Biology