Table 4B.

Demographic and Admission Data (Age: 20 min) According to Initial Ventilatory Support

EI/MV in the DRSecondary EI/MV (RDS)No EI/MV Attributable to RDS§
A 1994A 1996A 1994B 1996A 1994C 1996
n 222210101919
Gestational age (wk)25.9  ± 1.326.0  ± 1.526.6  ± 1.426.6  ± 1.426.8  ± 1.426.9  ± 1.6
Birth weight (g)725  ± 148726  ± 149770  ± 135776  ± 162806  ± 123795  ± 108
SGA,n (%) 7 (32) 7 (32) 3 (30) 3 (30) 7 (37) 7 (37) >
Female, n(%)10 (45)14 (64) 4 (40) 2 (20) 6 (32)13 (68)*
Prenatal betamethasone, n(%)11 (50)17 (77) 4 (40) 7 (70)11 (58)15 (79) >
Incomplete betamethasone, n(%) 4 (18) 4 (18) 4 (40) 1 (10) 2 (11)0
CRIB score7.0  ± 3.48.8  ± 4.16.0  ± 2.86.1  ± 4.25.8  ± 3.54.5  ± 3.1
Umbilical artery pH7.23  ± .087.23  ± .107.23  ± .087.31  ± .06* 7.23  ± .097.26  ± .12
Apgar, 5 min6.9  ± 2.87.2  ± 1.37.8  ± 2.08.3  ± 1.08.2  ± 1.38.6  ± .8
Hypothermia,, n (%) 5 (23) 5 (23) 1 (10)0 5 (26)0*
Mean arterial pressure(mmHg)27  ± 926  ± 936  ± 1942  ± 2729  ± 734  ± 7*
Serum glucose(mmol/L)2.3  ± 1.93.4  ± 3.92.0  ± 1.12.3  ± 1.51.9  ± .92.6  ± 1.8
Connatal sepsis,n (%) 5 (23) 9 (41) 4 (40) 2 (20) 4 (21) 2 (11) >
  • Abbreviations: SGA, small for gestational age (<3rd percentile).19

  • * P < .05.

  • At time of admission.

  • Body temperature <35°C (<95°F).

  • § A total of 5 ELBWI had no RDS but EI/MV attributable to sepsis (n = 1) or apnea (n = 4) at the age of 77 (21–168) h.

  • Numbers are different from the whole groups, only data of pairs matched for gestational age and weight are given.