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Figure 2 | BMC Health Services Research

Figure 2

From: Evaluating maternity care using national administrative health datasets: How are statistics affected by the quality of data on method of delivery?

Figure 2

Funnel plot showing consistency between OPCS mode of delivery code and delmeth code for English NHS trusts (2009/10). The English average was calculated by dividing the number of records with consistent mode of delivery recorded in both fields by the total number of records containing information about mode of delivery in both fields.

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BMC Health Services Research

ISSN: 1472-6963

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