Sample# | Birth weight tier | p | |||
---|---|---|---|---|---|
≤1500 g n = 23 | 1501–2000 g n = 67 | 2001–2500 g n = 105 | ≥2501 g n = 298 § | ||
Screening (median ng/mL [P25-75]) | 154 (120 to 208)a | 53.6 (47.0 to 64.7)b | 33.6 (29.9 to 41.9)c | 18.8 (16.0 to 23.4)d | <0.001 |
Retest (median ng/mL [P25-75]) | 48.1 (21.9 to 96.5)a | 12.7 (10.1 to 20.5)b | 8.1 (6.4 to 12.3)c | 7.3 (5.1 to 10.6)d | <0.001 |
∆ Samples | −98.6 (−172.5 to −67.0)a | −38.9 (−47.2 to −33.2)b | −24.9 (−31.5 to −21.2)c | −11.8 (−15.6 to −7.95)d | <0.001 |