Table 2

Pregnancy, delivery and postnatal complications reported by 1837 women in intervention wards and 1853 women in pre-intervention (control) wards

OutcomeProportion (n)RRR
(95% CIca)
RD
(95% CIca)
NNTICC
Intervention wardsPre-intervention wards
Pregnancy complications
No persistent headache0.950
(1746/1837)
0.421
(780/1853)
0.557
(0.434 to 0.680)
0.530
(0.403 to 0.656)
20.027
No swelling of face or hands0.974
(1790/1837)
0.711
(1317/1853)
0.271
(0.201 to 0.340)
0.264
(0.194 to 0.333)
40.010
No convulsions0.992
(1823/1837)
0.951
(1763/1853)
0.041
(–0.006 to 0.089)
0.041
(–0.007 to 0.088)
0.020
No vaginal bleeding0.978
(1797/1837)
0.903
(1674/1853)
0.076
(0.034 to 0.119)
0.075
(0.032 to 0.117)
140.007
No dizziness or blurred vision0.969
(1780/1837)
0.569
(1055/1853)
0.412
(0.349 to 0.476)
0.400
(0.264 to 0.535)
30.007
No raised blood pressure*0.966
(1409/1458)
0.851
(1269/1492)
0.120
(0.045 to 0.194)
0.116
(0.042 to 0.190)
90.016
No ‘other problem’ in pregnancy0.961
(1766/1837)
0.861
(1597/1853)
0.104
(0.043 to 0.164)
0.100
(0.040 to 0.159)
100.010
Delivery and postnatal complications
No perineal tear, cut or Caesarean section0.931
(1710/1837)
0.955
(1769/1853)
−0.026
(–0.134 to 0.082)
−0.024
(–0.123 to 0.075)
0.042
No ‘other problem’ in delivery0.977
(1795/1837)
0.963
(1785/1853)
0.014
(–0.007 to 0.035)
0.014
(–0.007 to 0.035)
0.003
No wound opening or infection after delivery0.994
(1808/1818)
0.985
(1816/1844)
0.010
(–0.007 to 0.026)
0.010
(–0.007 to 0.026)
0.005
No fever within 6 weeks of delivery0.833
(1531/1837)
0.532
(986/1853)
0.362
(0.195 to 0.528)
0.301
(0.143 to 0.460)
30.031
No smelly discharge within 6 weeks of delivery0.950
(1746/1837)
0.828
(1534/1853)
0.129
(0.046 to 0.212)
0.123
(0.041 to 0.205)
80.017
No sepsis within 6 weeks of delivery0.811
(1478/1822)
0.488
(903/1852)
0.399
(0.220 to 0.577)
0.324
(0.155 to 0.493)
30.033
  • Bold font indicates the contrast is significant at the 5% level.

  • *Among those women who had their blood pressure measured

  • 95% CIca, cluster-adjusted 95% CI; ICC, intracluster correlation; NNT, number needed to treat (1/RD); RD, risk difference; RRR, relative risk reduction (1−RR (relative risk)).