Abstract

Abstract Health effects of ETS can be classified as acute irritant effects, pulmonary and nonpulmonary effects in children, and lung cancer, other cancers and cardiovascular alterations in adults. The most consistent findings on adverse health effects of ETS are on the respiratory tracts of young children. The most significant nonpulmonary effect of ETS on children is the risk of reduction in birth weight. Compilation of studies from many countries indicates that the risk of lung cancer to nonsmoking spouses of smokers is about 30% greater than the risk of nonsmoking spouses of nonsmokers. Studies of cancers, other than lung, have been few and methodologically problematic. Recent reports from population‐based studies indicate that chronic exposure to ETS increases the risk of morbidity and mortality from cardiovascular diseases in nonsmoking persons.

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