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Table 2 Estimated proportions of sPPH for the Althabe et al. trial [1] by the binomial and by the lognormal approaches, per treatment group; treatments are hands-off and control cord traction (CCT)

From: Prevention of postpartum haemorrhage: a distributional approach for analysis

Trial

Treatment

n/N

Proportion 95% CI

Width of the 95% CI

Width ratio lognormal vs binomial (%)

Binomial

Hands-off

5/98

0.051 (0.022 to 0.114)

0.092

CCT

3/101

0.030 (0.010 to 0.084)

0.074

Lognormal

Hands-off

0.038 (0.017 to 0.078)

0.062

67

 

CCT

0.033 (0.014 to 0.069)

0.055

75