Sudden infant death syndrome: deletions of glutathione-S-transferase genes M1 and T1 and tobacco smoke exposure.

While the number of cigarettes smoked per day and the child’s total smoke exposure influence the risk of SIDS significantly [ 9 , 11 , 31 ], this finding narrowly missed statistical significance (Kruskal–Wallis test; p = 0.052) for the exact number of cigarettes smoked by the mother and the lifetime of the child.

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