Table 2.

Demographic Data and Baseline Characteristics.

Gestational age, weeks (median, IQR)	39 (37.4, 39.5)
Sex, n (%)
Male	31 (52.5%)
Female	28 (47.5%)
Ethnicity, n (%)
Black/African-American	46 (77.9%)
Multi-racial	2 (3.4%)
White	9 (15.3%)
Unknown	2 (3.4%)
Rh D mismatch, n (%)	11 (18.6%)
ABO mismatch, n (%)	47 (79.7%)
Positive direct antiglobulin test (DAT), n (%)	42 (71.2%)
Hour of life that phototherapy started (median, IQR)	7.35 (5.55, 13.05)
Total duration of phototherapy, hours (median, IQR)	85.9 (65.8, 115)

IQR, interquartile range.