OBJECTIVE: To describe the concepts on which systematic reviews of randomized controlled trials are based, and to explore the evidence for effectiveness of clinical interventions during labor and delivery. METHODS: Review of systematic reviews of interventions during labor and delivery, published in the Cochrane Library. RESULTS: Some commonly applied clinical interventions are supported by evidence; others are not. CONCLUSION: It is possible to classify interventions during labor and delivery according to their effectiveness, to improve clinical care, identify priorities where resources are scarce, and help set clinical research agendas.
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James P Neilson (1998) studied this question.
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