Research Article
Gestational Medication Use, Birth Conditions, and Early Postnatal Exposures for Childhood Asthma
Table 3
Risks for childhood asthma in relation to delivery modes and birth conditions.
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Models are adjusted for parental education, mother’s age at birth of her child, parental history of asthma, parental history of atopy, and in utero maternal smoking. * . §Number of subjects does not add up to total n because of missing data. †Early onset: asthma diagnosed ≦3 yr of age. ‡Late onset: asthma diagnosed >3 yr of age. ¶Preterm delivery was defined as children born at gestational age less than 37 weeks. |