Delivery system evaluation is poorly defined and therefore a barrier to achieving increased coverage of interventions. We use a pre- and post-implementation cross-sectional observational study with assessment of the intermediate processes to evaluate a new delivery system for insecticide-treated nets (ITNs) in two regions of Ghana. In Volta Region, ownership of at least one net rose from 38.3% to 45.4% (P = 0.06), and 6.5% of respondents used a voucher in the purchase. In Eastern Region, ownership of a net rose from 13.7% to 26.0% (P
American Journal of Tropical Medicine and Hygiene (2010) 82 (4) 672-677 [doi:10.4269/ajtmh.2010.09-0473]
Evaluating Delivery Systems: Complex Evaluations and Plausibility Inference.