Table 1.

Poisson regression models showing the effect of observed technique (OT) of various types (see top row) on practiced technique

	All influence no orphans		All influence with orphans		Maternal no orphans		Maternal with orphans		Nonmaternal no orphans		Nonmaternal with orphans
	Coef.	Robust SE	Coef.	Robust SE	Coef.	Robust SE	Coef.	Robust SE	Coef.	Robust SE	Coef.	Robust SE
Year 2	− 0.515	1.164	− 0.468	1.261	− 0.881	0.886	− 0.728	0.875	− 0.582	1.243	− 0.494	1.351
Year 3	0.476	0.519	1.616	0.725	0.145	0.798	0.291	0.785	0.404	0.556	1.594	0.765
Year 4	1.202	0.593	1.345	0.559	0.301	0.647	0.477	0.606	1.088	0.635	1.204	0.596
Year 5	1.480	0.572	1.752	0.576	0.393	0.659	0.559	0.619	1.385	0.592	1.671	0.599
OT	1.916	0.658	1.672	0.530	0.550	0.725	0.664	0.680	1.794	0.678	1.566	0.550
Year 2 × OT	0.552	1.339	0.423	1.461	0.783	0.934	0.521	0.957	0.626	1.430	0.477	1.571
Year 3 × OT	− 0.291	0.617	− 2.172	1.016	− 0.186	0.860	− 0.690	0.900	− 0.178	0.662	− 2.148	1.070
Year 4 × OT	− 1.283	0.743	− 1.502	0.697	− 0.377	0.697	− 0.652	0.675	− 1.137	0.800	− 1.302	0.745
Year 5 × OT	− 1.346	0.720	− 1.966	0.795	− 0.371	0.719	− 0.762	0.721	− 1.223	0.743	− 1.863	0.825
Female	− 1.194	0.439	− 1.643	0.521	− 1.557	0.531	− 1.574	0.545	− 1.183	0.464	− 1.628	0.545
Female × OT	1.308	0.542	2.166	0.718	1.485	0.538	1.757	0.579	1.302	0.592	2.152	0.766
Constant	− 1.757	0.546	− 1.655	0.487	− 0.527	0.670	− 0.693	0.632	− 1.662	0.567	− 1.572	0.508