Passive smoking in utero: no objective morphogenetic changes in the neonate.

The relationship between smoking during pregnancy and minor morphogenetic and anthropometric variants of the fetus was investigated in a case-control study. Sixty infants of mothers admitting to have smoken more than 20 cigarettes a day during pregnancy were matched to 120 infants of non-smoking mothers. No differences in the prevalence of 54 informative morphogenetic variants and in the values of 31 anthropometric measurements and indices were found.