Table 3

Specificity and sensitivity criteria for postpartum hemorrhage

Number of risk factors

Sensitivity (%)

Specificity (%)

Likelihood ratio

% correctly classified


1

100.00

9.01

1.10

12.66

2

91.38

46.76

1.72

48.55

3

56.90

81.20

3.03

80.22

4+

13.79

98.92

12.76

95.5


Prata et al. BMC Pregnancy and Childbirth 2011 11:97   doi:10.1186/1471-2393-11-97

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