Table 1.
Baseline characteristics.
|
Group I n = 156 |
Group II n = 181 |
Group III n = 101 |
|
|---|---|---|---|
| Neonates treated with IUT(s) ‐ n (%) | 99 (63) | 102 (56) | 61 (60) |
| Number of IUT(s) per neonate a | 3 (2–4) | 2 (2–4) | 2 (1–3) |
| Gestational age at birth ‐ weeks a | 37 (36–37) | 37 (36–37) | 37 (36–37) |
| Birthweight ‐ grams b | 2972 ± 443 | 2987 ± 470 | 2913 ± 348 |
| Caesarean delivery ‐ n (%) | 48 (31) | 41 (23) | 27 (27) |
| Male gender ‐ n (%) | 87 (56) | 114 (63) | 47 (47) |
| Primary type of alloantibodies | |||
| Rh D ‐ n (%) | 139 (89) | 153 (85) | 93 (92) |
| Rh C ‐ n (%) | 1 (1) | 2 (1) | 0 (0) |
| Rh c ‐ n (%) | 13 (8) | 17 (9) | 8 (8) |
| Rh Cw ‐ n (%) | 0 (0) | 2 (1) | 0 (0) |
| Rh E ‐ n (%) | 3 (2) | 7 (4) | 0 (0) |
| Additional non‐Rh alloantibodies ‐ n (%) | 11 (7) | 10 (6) | 3 (3) |
| Haemoglobin level at birth ‐ g/dL b , c | 11·6 ± 2·6 | 13·4 ± 3 | 13·5 ± 2·6 |
| Unconjugated bilirubin level at birth ‐ mg/dL b , d | 5·5 ± 2·8 | 5·7 ± 2·9 | 5·1 ± 2·3 |
| Unconjugated bilirubin level at birth ‐ μmol/L b , d | 94 ± 48 | 97 ± 49 | 87 ± 39 |
| Conjugated bilirubin level at birth ‐ mg/dL a , e | 0·5 (0·4–0·8) | 0·6 (0·5–0·8) | 0·5 (0·4–0·6) |
| Conjugated bilirubin level at birth ‐ μmol/L a , e | 9 (6–14) | 10 (8–13) | 8 (6–11) |
IQR, interquartile range; IUT, intrauterine transfusion; SD, standard deviation.
a
Median (IQR).
b
Mean ± SD.
c
0 missing values in group I, five missing values in group II, one missing value in group III.
d
one missing value in group I, five missing values in group II, one missing value in group III.
e
17 missing values in group I, 35 missing values in group II, five missing values in group III.