Loading...
Birth in certain months and sedentary behavior in children have been associated with increased risk for developing asthma. Two studies examine these associations further.
Investigators in California enrolled 514 newborn infants of Mexican-immigrant mothers and followed them until age 24 months to examine whether seasonal ambient exposure to fungi and pollens during the first months of life was associated with wheezing at age 2 years. Birth in autumn and winter was associated with increased risk for wheezing (odds ratio, 3.1). Exposure to increasing levels of basidiospores, ascospores, or pollen during the first 3 months of life also was associated with increasing risk for wheezing. The associations persisted after adjusting for other known a…