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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: J Perinatol. 2013 Dec 5;34(2):136–142. doi: 10.1038/jp.2013.149

Table 1.

Preterm infant characteristics [mean (SD)]

Healthy Infants Respiratory Distress Syndrome Chronic Lung Disease
HI (N=48) RDS (N=38) CLD (N=74)
SHAM PULSED SHAM PULSED SHAM PULSED
N=25 N=23 N=20 N=18 N=42 N=32
Gender (♂ : ♀) 12:13 14:9 13:7 12:6 21:21 16:16
GAbirth (wks) 32.1 (1.8) 31.3 (1.5) 30.8 (1.6) 30.5 (2.4) 26.6 (2.1) 27.2 (1.7)
BW (gms) 1736.7 (468.2) 1645.2 (327.2) 1491.3 (293.1) 1438.9 (521.1) 884.2 (353.5) 860.8 (247.8)
PMAstart (wks) 34.6 (1.4) 34.2 (1.5) 33.6 (1.4) 34.5 (1.9) 34.9 (1.9) 35.7 (2.5)
%POstart 26 (33) 26 (30) 7 (16) 16 (28) 12 (18) 14 (17)
O2 Hx (days) 4.3 (8.1) 2.5 (3.9) 16.4 (12.3) 23.6 (14.9) 69.8 (27.0) 67.2 (26.6)