Table 1.

Demographics

	n=54	%
EGA in weeks, median (IQR)	39 (38, 40)
Male sex	25	46.2
Race
Caucasian	43	79.6
African-American	8	14.8
Other	3	5.5
Hispanic ethnicity	4	7.4
Hours between feeding and heel stick, median (IQR)	1.8 (0.8, 3.1)
Bilirubin drawn at time of heel stick	8	14.8
Total bilirubin level (median, IQR)*	8.7 (7.8, 10.1)

^*One subject’s total bilirubin level drawn again 75 min later was 17.9 mg/dL, phototherapy followed.

IQR: 25th, 75th.

EGA, estimated gestational age at birth.