Table 1.

Risk Factors Associated With Infant Mortality From Injury for Infants Born in the United States for Years 1985 to 1991

Child YearsAll Injury TypesSuffocationIntentionalMotor VehicleFires/BurnsDrowningOther
n*RateRRAdjusted RR and 95% CInRatenRatenRatenRatenRatenRate
Total18 603 386596332.1189810.212897.09385.05753.14092.28544.6
Maternal characteristics
 Age
  <20 y2 414 336160766.64.223.25  (2.92–3.63)44318.341617.225410.51325.51024.226010.8
  20–24 y5 232 788227843.52.752.41 (2.21–2.64)77014.74949.43035.82524.81573.03025.8
  25–29 y5 859 775127121.71.371.40  (1.27–1.53)4117.02364.02344.01212.1951.61743.0
  >30 y5 096 48680715.81.001.002745.41432.81472.9701.4551.11182.3
 Education
  <12 y3 785 228259568.67.152.22  (1.95–2.53)83021.955814.73278.63138.31664.440110.6
  12 y7 641 64223230.43.171.57  (1.39–1.78)7439.75347.03845.02092.71512.03024.0
  13–15 y3 872 94972718.81.961.28  (1.12–1.46)2235.81423.71513.9401.0691.81022.6
  ≥16 y3 303 5673189.61.001.001023.1551.7762.3130.4230.7491.5
 Number of other children
  ≥31 870 201102855.02.263.15  (2.88–3.45)35919.21789.51045.61668.9723.81498.0
   23 036 242119339.31.622.31  (2.14–2.50)43214.22076.81525.01494.9812.71725.7
   16 103 474189831.11.281.77  (1.65–1.89)62110.24106.72654.31782.91722.82524.1
   07 593 486184424.31.001.004866.44946.54175.5821.1841.12813.7
 Race
  African-American3 295 821210964.02.621.30  (1.22–1.39)64119.455816.92176.62407.31123.434110.3
  All other577 672025444.01.801.42  (1.24–1.62)8214.1549.3569.7172.9203.5254.3
  White14 729 893360024.41.001.0011758.06774.56654.53182.22771.94883.3
 Married
  No4 719 701307765.23.131.67  (1.57–1.78)93619.878616.63517.43146.71984.249210.4
  Yes13 883 685288620.81.001.009626.95033.65874.22611.92111.53622.6
 Residence
  Large urban§ 2 884 303131745.61.541.01  (0.95–1.08)36412.638913.41194.11314.51033.62117.3
  All other15 719 083464629.51.001.0015349.89005.78195.24442.83061.96434.1
 US region
  South7 106 842268037.72.011.54  (1.40–1.68)88012.34866.84947.02573.61832.63805.3
  Midwest6 261 582198531.71.691.50  (1.37–1.65)64310.34817.72504.02133.41292.12694.3
  West2 094 90070833.81.801.64  (1.46–1.83)21610.31678.01316.3271.3673.21004.8
  Northeast3 140 06159018.81.001.001595.11554.9632.0782.5301.01053.3
Child characteristics
 Birth weight (g)
  ≤1500162 466228140.34.903.36  (2.94–3.84)7948.64728.9127.453.195.57646.8
  1500–25001 067 75976171.32.491.81  (1.68–1.96)24823.218217.0858.0787.3292.713913.0
  >250017 373 161497428.61.001.0015719.010606.18414.84922.83712.16393.6
 Sex
  Male9 518 726325934.21.151.18  (1.12–1.24)110711.66637.04915.22863.02442.64684.9
  Female9 084 659270429.81.001.007918.76266.94474.92893.21651.83864.2
  • Abbreviations: RR, relative risk; CI, confidence interval.

  • * n indicates number of deaths from injury.

  • Rate indicates rate of death from injury per 100 000 person years.

  • Adjusted RR indicates relative risk adjusted for other factors in Poisson regression.

  • § Large urban indicates residence in city with population >250 000 based on 1980 census.