This article is from the Sudden Infant Death Syndrome FAQ, by David Stokes firstname.lastname@example.org and Margaret D. Gibbs gibbsm@no_spam.poppyware.com with numerous contributions by others.
Note: Most babies with all the risk factors LIVE and babies with no
risk factors do die of SIDS. In most cases a risk factor increases
the odds from 2/1000 to 2/998. Also, there is _no_ "non-risk" factor
which anyone can point to and say "no SIDS babies did/had this".
The major risk factors are: 1. Maternal Smoking 2. Poor prenatal
care 3. Low birth weight 4. Hard drug use 5. Young maternal age.
Oddly the majority of the deaths occur during winter months, males
more commonly the victim, and the second child is more susceptible
than the first. The average age of a SIDS victim is about four