An assessment of the effect of user fee policy reform on facility-based deliveries in rural Zambia

BMC Research Notes

Table 4 Difference-in-difference sensitivity analysis.

	Home		Private		Public
	Estimate	S.E	Estimate	S.E	Estimate	S.E
Controls + selective migration
DID estimator	0.125	0.263	1.575**	0.671	−0.337	0.247
Controls + facility density
DID estimator	0.120	0.263	1.570**	0.672	−0.333	0.247
Controls + facility density interaction
DID estimator	0.152	0.312	1.295	0.814	−0.365	0.300
DID estimator × facility density	−0.001	0.004	0.007	0.012	0.001	0.004
Controls + average antenatal interaction
DID estimator	3.168**	1.303	0.294	3.619	−2.726**	1.224
DID estimator × average antenatal	−1.104**	0.462	0.443	1.239	0.864**	0.433
Controls + ancindex interaction
DID estimator	0.150	0.267	1.521**	0.679	−0.357	0.251
DID estimator × ancindex	−0.067	0.117	−0.594	0.399	0.055	0.113
Controls + wealth interactions
DID estimator	0.186	0.297	1.303*	0.790	−0.403	0.283
DID estimator × middle	−0.136	0.267	0.518	0.817	0.145	0.267
DID estimator × rich	0.273	0.748	0.355	1.122	−0.134	0.576
Controls + first birth
DID estimator	0.218	0.265	1.652 **	0.673	−0.436*	0.249
DID estimator × first birth	−0.601*	0.358	−0.951	1.022	0.669*	0.352
Controls (less than secondary education + stable residence)
DID estimator	0.063	0.258	1.324**	0.621	−0.587	0.359
Placebo reform (with controls)
DID estimator	−0.105	0.336	1.330	0.809	−0.280	0.317
Controls +2 years pre-reform
DID estimator	0.035	0.257	1.205**	0.613	−0.310	0.257

ISSN: 1756-0500