Table 3 Clinical characteristics of infants with or without milking
CharacteristicsControl group(n = 20)Milked group(n = 20)95% CIp Value
Haemoglobin value at birth (g/l) {range}141 (16)165 (14)1.39 to 3.27<0.01**
(122–169)(137–196)
Phlebotomy loss/birth weight (ml//kg)16.0 (3.0)16.7 (4.8)−1.79 to 3.350.27
Day at EPO start17.9 (7.2)19.3 (4.9)−2.67 to 5.400.25
Haemoglobin value at EPO start (g/l)117 (14)120 (2.0)−0.72 to 1.400.26
No RBC transfusion, No (%)6 (30)13 (65)0.14 to 0.630.03*
Number of blood transfusion ⩽3 weeks2.5 (3.3)0.7 (1.2)−3.35 to −0.150.02*
0–140–4
Total number of blood transfusions4.0 (4.2)1.7 (3.0)−4.69 to −0.010.02*
{range}{0–14}{0–9}
Systolic blood pressure at admission (mm Hg)38 (10)45 (11)0.23 to 14.550.049*
Diastolic blood pressure at admission (mm Hg)23 (7)29 (8)0.17 to 11.660.04*
Mean blood pressure at admission (mm Hg)28 (8)34 (9)0.22 to 12.270.03*
Maximum serum bilirubin (μmol/l)134 (42)140 (44)−1.22 to 2.030.30
Duration of mechanical ventilation (days)36.1 (25.3)21.9 (19.1)−30.31 to −0.200.04*
Duration of O2 (days)46.6 (24.8)23.4 (18.8)−17.37 to −0.14<0.01**
Duration of O2 ⩾30% (days)14.4 (15.5)6.0 (9.4)−38.54 to −8.000.03*
  • Data are mean (SD) unless stated otherwise

  • *p<0.05; **p<0.01.

  • EPO, erythropoietin; RBC, red blood cells.