Table 5 Associations of anaemia and anaemia severity forms with maternal and foetal adverse outcomes

Preterm delivery

1.15(0.86–1.53) p:0.335

1.15 (0.78–1.70) p:0.865

1.21(0.88–1.66) p: 0.233

2.50(1.35–4.63) p:0.003*

Severe preeclampsia or eclampsia

1.12(0.71–1.77) p: 0.618

1.46(0.76–2.79) p: 0.252

1.04(0.63–1.72) p: 0.874

1.36(0.50–3.69) p: 0.537

Placental abruption

6.59(0.85–50.87) p: 0.070

3.22(0.29–35.73) p: 0.340

3.64(0.40–32.76) p: 0.248

58.04(6.83–493.27) p:0.0001**

Postpartum haemorrhage

5.21(1.84–14.74) p: 0.002*

1.24(0.22–6.86) p: 0.798

4.93(1.68–14.50) p: 0.004*

41.3(12.90–132.20) p: 0.0001**

Maternal blood transfusions^a

2.14(1.19–3.83) p: 0.010*

1.52(0.69–3.35) p: 0.296

9.66(1.26–73.60) p: 0.029*

301.5(95–947) p: 0.0001**

Maternal ICU admission

1.83(0.99–3.37) p: 0.052

1.25(0.50–3.15) p: 0.628

1.86(0.96–3.59) p: 0.062

8.33(3.53–19.63) p: 0.0001**

In-hospital maternal mortality

1.11(0.26–4.66) p: 0.889

1.87(0.19–18.14) p: 0.544

1.1(0.22–5.50) p: 0.904

2.87(0.29–28.18) p: 0.365

Emergency caesarean section

1.03(0.73–1.46) p: 0.848

1.21(0.79–1.88) p: 0.371

1.19(0.80–1.78) p: 0.370

1.06(0.41–2.71) p: 0.898

Prolonged labour

1.25(0.60–2.57) p: 0.544

1.67(0.71–3.94) p: 0.236

1.01(0.44–2.33) p: 0.977

1.55(0.33–7.30) p: 0.574

Oxytocin administration to prompt labour

2.25(1.34–3.78) p: 0.002*

2.15(1.14–4.04) p: 0.017*

2.16(1.24–3.78) p: 0.006*

3.77(1.43–9.89) p: 0.007*

foetal outcomes

 LBW

1.32(0.99–1.77) p: 0.055

1.04 (0.71–1.53) p: 0.810

1.33 (0.97–1.83) p: 0.077

3.45 (1.87–6.35) p: 0.0001**

 Stillbirth

1.42(0.88–2.29) p:0.148

1.31(0.65–2.67) p:0.444

1.57(0.94–2.63) p:0.083

4.02(1.79–8.98) p:0.0001**

 NICU admission

1.45(0.99–2.11) p: 0.053

1.51(0.95–2.41) p: 0.081

1.38(0.91–2.10) p: 0.124

1.77(0.73–4.26) p: 0.20

 Foetal gross congenital anomalies

1.08(0.32–3.62) p: 0.894

1.61(0.39–6.50) p: 0.501

1.47(0.32–6.63) p: 0.612

2.15(0.23–19.63) p: 0.497

 Foetal distress

1.45(0.86–2.43) p: 0.157

1.01(0.53–1.89) p: 0.974

1.92(1.02–3.62) p: 0.430

1.62(0.37–7.06) p: 0.516