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Table 4 Maximum Estimated Sample Size by Data Collection Method for the MAHMAZ Implementation Effectiveness Protocol

From: Evaluating implementation effectiveness and sustainability of a maternity waiting homes intervention to improve access to safe delivery in rural Zambia: a mixed-methods protocol

MethodSample SizeRationale
MWH Experience Survey2880A maximum of 6 women per site × 20 BEMONC sites X 24 months.
IDI with MWH Governance and Management Units3006 IDIs (3 governance members and 3 management members) per site X 10 BEmONC Intervention sites X 5 semi-annual cycles (July 2016–June 2018). This is the estimated sample size, but we will quit if we reach saturation or predictability during any given semi-annual cycle.
Focus Group Discussions120010 participants per FGD X 4 FGDs site X 10 sites X 3 time points. This is the estimated sample size, but we will quit if we reach saturation or predictability during any given semi-annual cycle.
IDI with Health Facility/System staff360(3 IDIs per site × 20 BEmONC sites) + (3 IDIs per District/Province X 4 Districts) X 5 semi-annual cycles (July 2016–June 2018). This is the estimated sample size, but we will quit if we reach saturation or predictability during any given semi-annual cycle.
Record Review (health facility and MWH registers)14,400Data will be extracted monthly at all sites. We estimate 20 unique records per month x 20 BEmONC sites X 36 months.
TOTAL:19,140