Table 2: Group Characteristics-Disease Groups (a)/Gestational Age Groups (b).

a) Comparison of Group Characteristics for well preterm infants (WPI) and ill preterm infants (IPI).

WPI (n = 74) IPI (n = 68) P
Gestational age (wks)* 32.7 (24-36.9) 28.1 (23.5-35.6) < 0.0001#
Birthweight/g* 1825 (640-2920) 1095 (457-2700) < 0.0001#
Sex (m/f) 31/45 29/39 0.86##
SGA 6 (8%) 7 (10%) 0.77##
Antenatal Steroid Completed 31 (44%) 31 (48%) 0.61##
Antenatal Steroids total 40 (56%) 47 (72%) 0.083##
Sectio ces. 67 (88%) 60 (88%) 1.0##
Cord Art pH* 7.32 (7.14-7.44) 7.31 (7.12-7.62) 0.75#
5-Min.-APGAR* 9 (5-10) 8 (1-10) 0.0006#

b) Group characteristics by gestational age.

< 28 wks GA n = 53 >= 32 wks GA n = 67 p
Gestational Age 27 (24 + 3 - 27 + 6) 33.6 (32 + 0 - 36 + 6) < 0.0001#
Birthweight/g* 920 (460 - 1400) 2040 (1220 - 2920) < 0.0001#
Sex (m/f) 26/27 46/21 0.0657##
SGA 4 (7.5%) 8 (12%) 0.6812##
Antenatal steroids total 4 (87%) 26 (42%) 0.0040##
C-sectio 45 (85%) 60 (90%) 0.6658##
Cord art pH 7.30 (7.12-7.46) 7.32 (7.2-7.62) 0.5698#
5-Min.-APGAR* 8 (5-10) 9 (1-10) 0.0056#

*Median (Minimum-Maximum); #Mann-Whitney-U-Test; ##Fisher's exact test.