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Table 1 Baseline characteristics and stillbirths of women in the WOMAN trial who survived, and of the women who died. The second and third columns report the number of women in each category and the corresponding percentage. The fourth and fifth columns report the odds ratios, and the P values calculated from the likelihood ratio test

From: The WOMAN trial: clinical and contextual factors surrounding the deaths of 483 women following post-partum haemorrhage in developing countries

  n (%) alive n (%) dead OR (95% CI) P-value
Age at randomisation (years)
  ≤ 25 6738 (34.49) 104 (21.53) 1 <  0.001
 26–35 10,703 (54.78) 284 (58.80) 1.72 (1.37–2.16)  
  ≥ 36 2090 (10.70) 95 (19.67) 2.94 (2.22–3.91)  
 Missing 7 (0.04) 0.0   
Baby delivered in hospital
 Yes 17,249 (88.28) 341 (70.60) 1 <  0.001
 No 2287 (11.71) 141 (29.19) 3.12 (2.55–3.81)  
 Missing 2 (0.01) 1 (0.21)   
Type of delivery
 Vaginal 13,871 (70.99) 320 (66.25) 1 0.03
 Caesarean section 5663 (28.98) 162 (33.54) 1.24 (1.02–1.50)  
 Missing 4 (0.02) 1 (0.21)   
Systolic BP (mmHg)
  < 90 3560 (18.22) 276 (57.14) 6.13 (5.05–7.45) <  0.001
 90–120 13,446 (68.82) 170 (35.20) 1  
 121–140 1775 (9.08) 25 (5.18) 1.11 (0.73–1.70)  
  > 140 752 (3.85) 12 (2.48) 1.26 (0.70–2.28)  
 Missing 5 (0.03) 0.0   
Estimated volume of blood lost (mL)
  ≤ 1000 10,327 (52.86) 77 (15.94) 1 <  0.001
 1001–2000 8072 (41.31) 213 (44.10) 3.54 (2.72–4.60)  
  > 2000 1137 (5.82) 193 (39.96) 22.77 (17.36–29.86)  
 Missing 2 (0.01) 0.0   
Haemodynamic instability
 No 8168 (41.81) 26 (5.38) 1 <  0.001
 Yes 11,369 (58.19) 457 (94.62) 12.63 (8.50–18.77)  
 Missing 1 (0.01) 0.0   
Primary cause of haemorrhage
 Uterine atony 12,504 (64.00) 257 (53.21) 1 <  0.001
 Placenta praevia/accreta 1835 (9.39) 40 (8.28) 1.06 (0.76–1.49)  
 Surgical trauma/tears 3582 (18.33) 99 (20.50) 1.34 (1.06–1.70)  
 Other/Unknown 1617 (8.28) 87 (18.01) 2.62 (2.04–3.36)  
Stillbirths
 No 17,716 (90.67) 313 (64.80) 1 <  0.001
 Yes 1817 (9.30) 169 (34.99) 5.26 (4.34–6.39)  
 Missing 5 (0.03) 1 (0.21)