Table 1

Perinatal data of 88 infants of < 28 weeks gestation

CharacteristicGroup A (n = 50)Group B (n = 38)p Value
Study population divided into two groups according to serum IL6 level at 12 hours of postnatal age: A, ⩽ 100 pg/ml; B, > 100 pg/ml.
*Values are given as median and range.
IL, interleukin; CRIB, clinical risk index for babies; PDA, patent ductus arteriosus.
Gestational age (weeks)26+0 (23+2−27+6)*25+1 (23+2−27+2)*0.09
Birth weight (g)652 (333–1000)*705 (470–910)*0.18
Male/female25/2518/201.0
Antenatal steroids47(94%)35(92%)0.43
Cord blood pH7.32 (6.9–7.46)*7.32 (7.13–7.44)*0.62
CRIB score8(1–21)8(1–20)0.063
Catecholamine treatment31(62%)35(92%)0.002
C reactive protein > 5 mg/l7(14%)15(39%)0.012
IL6 concentration (pg/ml)12(0–96)*1000 (114–50 000)*0.0001
PDA34(68%)32(84%)0.22
Mechanical ventilation48(96%)38(100%)0.25