Table 4

Impact of parental factors on the risk of injury related infant death

HomicideUnintentional injury
Risk factorNo of birthsNo of deathsUnadjusted OR (95% CI)Adjusted OR (95% CI)*No of deathsUnadjusted OR (95% CI)Adjusted OR (95% CI)*
CI =confidence interval; OR = odds ratio.
*Adjusted odds ratios obtained from logistic regression models for homicide/unintentional injury including race, birth weight, alcohol intake, cigarette smoking, prenatal care, marital status, maternal age, maternal education, paternal education, birth order, and interpregnancy interval.
Total10 671 6668212397
Marital status
    Married7 688 8573041.01.012211.01.0
    Unmarried2 982 8095174.4 (3.8 to 5.1)1.8 (1.5 to 2.2)11762.5 (2.3 to 2.7)1.3 (1.1 to 1.4)
Maternal age (years)
    20–348 355 2245401.01.017111.01.0
    <201 397 1012612.9 (2.5 to 3.4)1.5 (1.2 to 1.8)5822.0 (1.9 to 2.2)1.6 (1.4 to 1.8)
    >34919 341200.3 (0.2 to 0.5)0.5 (0.3 to 0.8)1040.6 (0.5 to 0.7)0.6 (0.5 to 0.7)
Maternal education
    High school3 874 5103121.01.08701.01.0
    <12 years2 306 8813271.8 (1.5 to 2.1)1.1 (0.9 to 1.3)9711.9 (1.7 to 2.1)1.2 (1.1 to 1.4)
    >12 years3 826 7801140.4 (0.3 to 0.5)0.8 (0.6 to 1.0)4170.5 (0.4 to 0.5)0.8 (0.7 to 0.9)
    Missing663 495681.3 (1.0 to 1.7)1.1 (0.8 to 1.5)1390.9 (0.8 to 1.1)0.9 (0.7 to 1.1)
Paternal education
    High school3 347 2722481.01.06761.01.0
    <12 years1 480 7211071.0 (0.8 to 1.2)0.7 (0.6 to 1.0)4691.6 (1.4 to 1.8)1.2 (1.1 to 1.4)
    >12 years3 550 359730.3 (0.2 to 0.4)0.5 (0.4 to 0.6)3600.5 (0.4 to 0.6)0.8 (0.7 to 0.9)
    Missing2 293 3143932.3 (2.0 to 2.7)1.0 (0.8 to 1.3)8921.9 (1.7 to 2.1)1.3 (1.1 to 1.4)