Traffic Pollution and Children's Health: Refining Estimates of Exposure for the East Bay Children's Respiratory Health Study; Final rept

摘要

We defined all health outcomes and their important covariates based on the questionnaire completed by the parents. Ever-asthma was defined as a 'yes' response to the question 'Has a doctor or other health professional ever told you or your family that your child has or had asthma.' Current asthma (variable=asthma3) was defined as having ever-asthma AND an episode of asthma or 'wheezing within the last 12 months.' An alternate definition for current asthma (variable=q29b) (In the past 12 months told by a doctor that your child had asthma) was also used in some analyses. Current Bronchitis was defined as a 'yes' response to the question: 'During the past 12 months, did your child have bronchitis.' OR a report of cough and chest congestion or phlegm lasting three consecutive months of the past 12. Allergic rhinitis was defined as a 'yes' response to the question 'Has a doctor or other health professional ever said your child has or had hay fever or allergic rhinitis.' We also asked about factors potentially associated with asthma or bronchitis, such as race/ethnicity, measures of socioeconomic status, maternal and paternal history of asthma, and current smoker in the home, mold, and commute patterns to and from school.