Table 1

 Study cohort description

FacilityTotal
ABCDEFG
Number of live births468048074105471153115806395433374
Infant gestational age, mean±SD39.0±1.938.8±2.239.0±2.338.6±2.439.0±2.138.7±2.038.8±2.238.8±2.2
Gestational age <34 wks, n (%)81 (1.7)137 (2.9)123 (3.0)187 (4.0)139 (2.6)143 (2.5)121 (3.1)931 (2.8)
Birth weight, mean±SD3390.3±583.03349.9±635.43342.5±643.03374.6±669.73468.9±621.53247.1±563.23318.3±624.23355.4±622.3
Birth weight <1500 g, n (%)40 (0.9)74 (1.5)74 (1.8)99 (2.1)70 (1.3)74 (1.3)59 (1.5)490 (1.5)
Male sex, n (%)2390 (51.1)2447 (50.9)2099 (51.1)2418 (51.3)2702 (50.9)2969 (51.1)2001 (50.6)17026 (51.0)
White race/ethnicity, n (%)1242 (26.5)1870 (38.9)691 (16.8)3240 (68.8)3303 (62.2)3782 (65.1)1341 (33.9)15469 (46.4)
Mother’s age at delivery, mean±SD28.3±6.029.2±5.928.5±6.627.9±6.129.5±5.927.9±6.030.2±6.228.7±6.1
12 hr SNAP-II score (median, 25th centile, 75th centile)0, 0, 85, 0, 165, 0, 120, 0, 85, 0, 155, 0, 90, 0, 85, 0, 10
NICU admission, n (%)673 (14.4)386 (8.0)489 (11.9)494 (10.5)612 (11.5)691 (11.9)493 (12.5)3838 (11.5)
Home visit by 72 hours, n (%)655 (14.0)597 (12.5)2055 (50.2)27 (0.6)75 (1.4)4724 (81.5)2015 (51.1)10148 (30.5)
Scheduled outpatient visit by 72 hours, n (%)3165 (67.8)3556 (74.4)938 (22.9)3856 (82.2)2386 (45.0)535 (9.2)1333 (33.8)15769 (47.4)
Rehospitalisation for jaundice, n (%)73 (1.6)34 (0.7)52 (1.3)57 (1.2)83 (1.6)4 (0.1)79 (2.0)382 (1.1)
All other rehospitalisations, n (%)74 (1.6)51 (1.1)55 (1.3)58 (1.2)100 (1.9)54 (0.9)93 (2.4)485 (1.5)