Smoking and Asthma

To the Editor.— I want to thank Pedreira and his colleagues1 for providing us with more evidence to convince parents to quit smoking or, at least, not to smoke near their young children. However, although the authors looked at the passive effect of parental smoking on the incidence of lower respiratory tract infections, they did not mention its effect on children with asthma. It has been my experience that young children with asthma have less problems if their parents stop or reduce their amount of cigarette smoking.