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Table 5 Risk factors for caesarean-related blood transfusion: Multivariate analysis

From: Caesarean delivery-related blood transfusion: correlates in a tertiary hospital in Southwest Nigeria

Independent risk factors aOR 95% CI P-value
Age group (35 years or more versus <20 years) 0.02 0.00–1.79 0.09
Age group (20–34 versus <20 years) 0.02 0.00–1.67 0.09
Obesity (Yes/No) 0.24 0.10–0.61 <0.001
Pre-op anaemia (Yes/No) 12.15 4.02–36.71 <0.001
Anaesthesia (Regional/General) 0.37 0.13–1.07 0.07
Booked (Yes/No) 1.99 0.76–5.23 0.16
CPD (Yes/No) 0.57 0.08–3.93 0.57
Chronic Hypertension 0.60 0.07–5.30 0.64
Placenta previa (Yes/No) 32.57 2.23–476.26 0.01
Abruptio placentae (Yes/No) 25.35 3.05–211.02 <0.001
Fetal conditions (Yes/No) 1.13 0.13–9.47 0.91
Mal-presentation (Yes/No) 0.88 0.09–8.28 0.10
Prolonged labour (Yes/No) 1.90 0.62–5.87 0.26
2ndstageCs (Yes/No) 76.13 1.25–4622.06 0.04
Pre eclampsia/eclampsia (Yes/No) 5.19 1.84–14.68 <0.001
Pre-0pfever (Yes/No) 3.14 0.76–13.06 0.12
Fibroids (Yes/No) 1.31 0.11–15.75 0.84
Previous uterine scar (Yes/No) 7.02 1.37–36.02 0.02
Elective C/S (Yes/No) 0.03 0.00–46.39 0.34
Prolonged operation time (Yes/No) 10.72 4.20–27.33 <0.001
Cadre of surgeon (Registrar/Consultant) 5.32 0.10–285.63 0.41
Cadre of surgeon (Senior Registrar/Consultant) 1.21 0.02–70.36 0.93
Time of surgery (Regular hours/Call hours) 1.05 0.41–2.69 0.92
Parity grouped (1–4/0) 0.39 0.14–1.07 0.07
Parity grouped (5 and above/0) 0.30 0.03–2.66 0.28
Social class (middle/lower) 0.85 0.31–2.32 0.75
Social class (upper/lower) 0.52 0.13–2.09 0.36
CONSTANT reference reference 0.78
  1. Adjusted odds ratio (aOR) and 95% confidence intervals (CI) *Significant p = <0.05