Table 1: Inclusion and Exclusion Criteria
Inclusion Criteria Exclusion Criteria
Observational studies Studies which aim only to identify the risk factors for PPH
Experimental studies Studies only describing tools for diagnosis of PPH
Pregnant women over the age of 16 Studies investigating a single predictor test or marker
Development &/or validation of a prognostic multivariable tool or model to predict risk of PPH Case-reports
Published since 1946 Non-English language publication