Process lessons from evaluating a combined continuity of carer and home birth scheme.

Targets must be both feasible and meaningful and should be complemented by assessing a broad range of outcomes while viewing the scheme holistically. By expanding eligibility criteria, the home birth rate target was met; including input from a home birth team colleague in the calculation meant the continuity target was nearly met. With dedicated and competent staff, adequate resource and political support, and when considered in the round, the scheme's viability within local services was confirmed. Other generalizable learning points included the need to standardize definitions and data recording methods. Comparability across schemes helps grow the evidence base so that the links between processes and outcomes can be identified.