Heel Samples N = 520 | Cord Samples N = 1141 | |
---|---|---|
Sex | ||
Male, n(%) | 258 (49.6%) | 578 (50.7%) |
Female, n(%) | 262 (50.4%) | 563 (49.3%) |
Completed weeks of gestational age, wks (SD) | 39.2 (1.5) | 39.0 (1.6) |
≥ 37 weeks, n(%) | 485 (93.3%) | 1033 (90.5%) |
32–36 weeks, n(%) | 34 (6.5%) | 105 (9.2%) |
28–31 weeks, n(%) | 1 (0.2%) | 2 (0.2%) |
< 28 weeks, n(%) | 0 (0.0%) | 1 (0.1%) |
Birthweight, g (SD) | 2834.7 (429.4) | 2859.5 (439.6) |
≥ 4000 g, n(%) | 3 (0.6%) | 15 (1.3%) |
2500 g to < 4000 g, n(%) | 422 (81.2%) | 941 (82.5%) |
1500 g to < 2500 g, n(%) | 91 (17.5%) | 177 (15.5%) |
1000 g to < 1500 g, n(%) | 4 (0.8%) | 4 (0.4%) |
< 1000 g, n(%) | 0 (0.00%) | 3 (0.3%) |
Multiple birth, n(%) | 7 (1.3%) | 19 (1.7%) |
Newborn age at sample collection, hrs (SD) | 16.2 (8.5) | 0.08 (0.07) |
Term infants (SD) | 16.3 (8.5) | 0.08 (0.07) |
Preterm infants (SD) | 16.2 (8.8) | 0.08 (0.07) |
< 24 h | 467 (89.8%) | 1141 (100.0%) |
24–72 h | 53 (10.2%) | 0 (0.0%) |
> 72 h | 0 (0.0%) | 0 (0.0%) |