The effects of low-level environmental tobacco smoke exposure on pulmonary function tests in preschool children with asthma.

OBJECTIVES Though parents of children with asthma smoke, they often avoid smoking in their homes or near their children, thus limiting exposure. It is not known if such low-level environmental tobacco smoke (ETS) results in measurable exposure or affects lung function. The objectives of this study were to measure urinary cotinine in preschool children with… CONTINUE READING