TABLE 3

Co-occurrence of Risks

Additional RiskType of Risk Present, % (n/N) With Additional Risksa,b
NonsupinecMother SmokingURISceneFather Smoking<37 wk Gestational AgeBed-Sharing
Nonsupine76.4 (68/89)72.3 (60/83)83.6 (61/73)74.7 (65/87)69.5 (41/59)80.0 (68/85)
Mother smoking44.2 (68/154)40.2 (33/82)53.6 (37/69)69.4 (59/85)54.6 (30/55)53.1 (43/81)
URI40.8 (60/147)39.3 (33/84)28.8 (19/66)41.0 (34/83)40.4 (23/57)45.0 (36/80)
Scene36.1 (61/169)40.2 (37/92)20.9 (19/91)37.1 (33/89)28.3 (17/60)43.0 (40/93)
Father smoking50.4 (65/129)85.5 (59/69)47.2 (34/72)58.9 (33/56)59.1 (26/44)54.6 (36/66)
<37 wk gestational age24.8 (41/165)33.3 (30/90)25.8 (23/89)24.6 (17/69)30.2 (26/86)30.6 (26/85)
Bed sharing39.8 (68/171)46.7 (43/92)40.0 (36/90)53.3 (40/75)40.0 (36/90)42.6 (26/61)
  • a Cases positive for the additional risk/all cases positive for the risk designated in each column.

  • b Denominators represent all cases with complete data on the status of the additional risks named in the first column.

  • c In addition to the cases in which the infants were placed to sleep in a nonsupine position, this category includes those infants who were placed supine but found prone.