Twin pairs delivered vaginally (n=171) | Twin pairs delivered through CS (n=119) | p Value | |||||
---|---|---|---|---|---|---|---|
Twin 1 | Twin 2 | p Value | Twin 1 | Twin 2 | p Value | ||
Hb level at birth—g/dL*† | 16.1±2.4 | 17.8±2.5 | <0.01 | 15.9±2.2 | 16.3±2.5 | 0.10 | |
Hb level on day 2—g/dL*‡ | 14.8±2.7 | 18.0±3.0 | <0.01 | 15.5±2.6 | 16.0±2.8 | 0.23 | |
Hb difference at birth—g/dL*† | 1.9 (0.6–3.9) | 1.1 (0.4–3.1) | 0.02 | ||||
Hb difference on day 2—g/dL*‡ | 3.7 (2.7–6.3) | 2.4 (0.9–4.9) | <0.01 | ||||
Hb difference >8 g/dL at birth—n (%)† | 9 (5.2) | 0 (0.0) | <0.01 | ||||
Hb difference >8 g/dL on day 2—n (%)‡ | 11 (6.4) | 0 (0.0) | <0.01 |
*Values given as mean±SD or median (IQR).
†Hb levels at birth were available in 143 twin pairs delivered vaginally and in 115 twin pairs delivered through CS.
‡Hb levels on day 2 were available in 91 twin pairs delivered vaginally and in 64 twin pairs delivered through CS.
Hb, haemoglobin.