TABLE 3.

Prone Sleep Position by Age of Infant (N = 260 Matched Pairs)

Age Group (Months)	Total	SIDS Cases Placed Prone	Controls Placed Prone	Unadjusted OR (95% CI)	Adjusted OR* (95% CI)
Age Group (Months)	N (%)	N (%)	N (%)	Unadjusted OR (95% CI)	Adjusted OR* (95% CI)
<1	19 (7.3)	8 (42.1)	7 (36.8)	1.3 (0.6–6.0)	1.3^†
1–3	184 (70.8)	103 (56.0)	64 (34.8)	2.3 (1.5–3.5)	2.1 (1.2–3.5)
≥4	57 (21.9)	38 (66.7)	20 (35.1)	3.0 (1.4–6.4)	4.3 (1.4–13.3)
Total	260 (100.0)	149 (57.3)	91 (35.0)	2.4 (1.7–3.4)	2.3 (1.5–3.5)

↵* Adjusted for maternal age, marital status, education, and index of prenatal care.
↵† Model unstable because of small sample size; CI not calculated.