TABLE 1

Study Population Characteristics by Age Category

CharacteristicTotalaAge CategoryaP
0–3 Months (n = 5677)4 Months to 364 Days (n = 2530)
n%n%n%
Gender.24
 Male478058.2327357.7150759.6
 Female340841.5239042.1101840.2
 Unknown190.2130.250.2
Race/ethnicity.02
 Hispanic159519.4107819.051720.5
 Non-Hispanic white368844.9253744.7115145.5
 Non-Hispanic black247130.1176231.070828.0
 Other race4535.53005.31546.1
Any CCC1021.2460.8562.2<.001
Primary caregiver.17
 Parent779595.0540495.2239194.5
 Foster parent871.1611.1271.1
 Parent’s partner700.9460.8240.9
 Relative or friend1351.6801.4552.2
 Other400.5260.5140.6
 Unknown801.0601.1200.8
Autopsy performed.29
 Yes800897.6554497.7246497.4
 No891.1541.0351.4
 Unknown1091.3791.4311.2
Diagnosis.02
 SIDS/SUID287335.0196934.790435.7
 Accidental suffocation and strangulation in bed219626.8148226.171428.2
 Unknown/undetermined313838.2222639.291236.0
  • SUID, sudden unexpected infant death.

  • a Frequencies are nonintegers due to averaging over 5 independent imputations during the multiple imputation process; frequencies shown are rounded to the nearest integer.