TABLE 1

Characteristics of the 769 Newborns With at Least 1 Paired TcB/TSB Level

CharacteristicValue
Birth weight, mean ± SD, g3333 ± 500
Gestational age, mean ± SD, wk39.1 ± 1.4
Vaginal delivery, n (%)572 (74.5)a
Feeding, n (%)
 Exclusively breast355 (46.3)a
 Breast and formula318 (41.5)
 Formula only93 (12.1)
Race, n (%)
 American Indian/Alaska Native6 (1.0)a
 African American156 (24.9)
 Asian48 (7.7)
 Pacific Islander/Native Hawaiian3 (0.5)
 White402 (64.2)
 Multiple races10 (1.6)
 Other1 (0.2)
Hispanic ethnicity188 (24.5)b
  • a Percentages after missing data excluded. Data missing on delivery type in 1 child, feeding type in 3 children, and race in 143.

  • b Infants with ethnicity recorded as unknown were classified as non-Hispanic. Ethnicity data were missing on 2 infants.