Table 1.

Average marginal effects (AME) of coverage and compliance for friendship degree Heckman model.

	A) First stage dependent variable: coverage					B) Second stage dependent variable: compliance
Predictors	AME	Clustered Std. Err.	p-value	95% CI		AME | Coverage=1a	Clustered Std. Err.	p-value	95% CI
LN(Friendship degree +1), [0, 3.526]	0.067	0.016	<0.001	0.036	0.099
LN(Friendship degree +1), [>3.526]	0.303	0.232	0.193	−0.153	0.758
Friendship betweenness centralityb	−1.513	1.073	0.158	−3.616	0.590
Health betweenness centrality [0, 0.268]	0.420	0.350	0.231	−0.267	1.107
Health betweenness centrality [>0.268]	0.520	0.769	0.499	−0.988	2.028
Close friends with CMD	−0.004	0.020	0.846	−0.042	0.035	0.021	0.017	0.224	−0.013	0.054
Trusts CMD for health advice	0.072	0.016	<0.001	0.040	0.104	0.048	0.015	0.001	0.019	0.077
Age in years	0.001	<0.001	0.003	<0.001	0.002	<0.001	<0.001	0.546	<-0.001	0.001
Female	0.011	0.008	0.179	−0.005	0.027	0.011	0.008	0.143	−0.004	0.026
Social status: was or is a religious, tribe, or clan leader or on the local village council	0.074	0.026	0.005	0.022	0.125	0.018	0.025	0.476	−0.031	0.066
Fisherman or fishmonger	−0.018	0.019	0.338	−0.055	0.019	−0.002	0.016	0.907	−0.034	0.030
Other income-earning occupation	0.019	0.013	0.159	−0.007	0.045	0.027	0.013	0.029	0.003	0.052
Highest level of education attained	−0.009	0.002	<0.001	−0.012	−0.006	−0.006	0.002	<0.001	−0.009	−0.003
Muslim household head	−0.049	0.017	0.005	−0.082	−0.015	−0.021	0.015	0.149	−0.050	0.008
Household head belongs to village majority tribe	0.029	0.016	0.069	−0.002	0.060	0.038	0.014	0.008	0.010	0.066
No home latrine	−0.081	0.028	0.004	−0.136	−0.026	0.001	0.024	0.974	−0.047	0.049
Home owned, not rented	0.008	0.024	0.737	−0.039	0.055	0.002	0.023	0.934	−0.043	0.047
Home quality score	0.001	0.002	0.559	−0.003	0.006	−0.001	0.002	0.709	−0.005	0.004
Village centre greater than 0.50 km from Lake Victoria	−0.160	0.017	<0.001	−0.193	−0.127
Total homes in village	−0.001	<0.001	<0.001	−0.001	−0.001
Obs. 14431
Households 3387
Inverse hyperbolic tangent of $\rho$	−1.348	0.241	<0.001	−1.821	−0.875
$\rho$	−0.874	0.057		−0.949	−0.704
Wald test of independent equations, Chi2	31.100	<0.001

^aAverage marginal probability of compliance = 1 conditional on coverage (being offered treatment).

^bEntered in the Heckman selection model as grand-mean centered and a quadratic, i.e. also including the squared form.