Table 1 Demographics and baseline characteristics
LT4 -supplemented | Placebo | |
|---|---|---|
n= 75 | n= 78 | |
Gender (male) | 44 (59%) | 45 (58%) |
Birth weight (grams) | 820.7 (183.9) | 842.2 (200.0) |
Gestational age (weeks) | 25.8 (1.3) | 25.8 (1.4) |
Clinical risk index for babies (CRIB) score | 5.7 (3.5) | 5.4 (4.1) |
Twin births (pairs) | 4 (5.3%) | 6 (7.7%) |
Infant baseline FT4 (pmol/L) | 12.2 (6.9) | 10.5 (6.3) |
Infant baseline leg length (mm) | 38.7 (7.1) | 39.54 (6.8) |
Maternal age (years) | 28.8 (5.8) | 28.9 (5.8) |
Maternal history of smoking during pregnancy | 16 (22%) | 20 (26%) |
Maternal history of alcohol during pregnancy | 6 (8%) | 4 (5%) |
Maternal FT4 (pmol/L) | 16.5 (3.2) | 15.9 (2.5) |
Premature rupture of membrane | 30 (40.5%) | 24 (30.8%) |
Evidence of recent maternal infectiona | 21 (28.0%) | 19 (24.4%) |
Antenatal steroid therapy | 72 (96.0%) | 73 (93.6%) |
Delivery by Caesarean section | 24 (32.0%) | 27 (35.1%) |