MMWR's contemporaneous account of the SIDS decline: a 30% U.S. decline during 1992-1995 tracking the fall in prone-sleeping prevalence after the AAP recommendation and Back to Sleep launch (1994); other countries saw declines of roughly 50%.
In the United States during 1992-1995, the SIDS rate declined 30% concurrent with a decrease in the prevalence of prone sleeping from 78% in 1992 to 43% in 1994.
MMWR's contemporaneous account of the SIDS decline: a 30% U.S. decline during 1992-1995 tracking the fall in prone-sleeping prevalence after the AAP recommendation and Back to Sleep launch (1994); other countries saw declines of roughly 50%. Quantifies the sleep-position explanation for the decline the book attributes to other causes.