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Case-control study of current validity of previously described risk factors for SIDS in the Netherlands
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    Male excess in SIDS is not caused by more males sleeping prone than females
    Dear Editor,

    l'Hoir et al suggest that the male excess in SIDS is created by more infant males sleeping or turning prone than females. This does not appear to be the case because the male fraction in SIDS remained constant after the campaign to reduce prone sleeping in the USA.

    Using US SIDS data obtained at the CDC WONDER web site,, I tested the male SIDS rates for all races in the age group 28 t...

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    Conflict of Interest:
    None declared.