Ever DK to effectiveness (B3)			Ever DK to risks (B6)			Ever DK to patient type (B8)			All DK to effectiveness (B3)			All DK to risks (B6)
	S.E.	p	O.R.	S.E.	p	O.R.	S.E.	p	O.R.	S.E.	p	O.R.	S.E.	p	O.R.
Female1	0.338	0.386	1.341	0.336	0.045	1.965	0.317	0.700	1.130	0.369	0.763	0.895	0.542	0.543	1.390
Age 40–492	0.412	0.290	0.647	0.422	0.368	1.463	0.388	0.211	0.615	0.45	0.583	1.28	0.726	0.185	2.618
Age 50–592	0.458	0.567	0.769	0.472	0.032	2.748	0.432	0.436	0.714	0.52	0.756	1.175	0.966	0.982	1.022
Age 60+2	0.502	0.972	0.982	0.516	0.127	2.197	0.473	0.352	0.644	0.553	0.768	1.177	0.821	0.182	2.990
Other Race3	0.312	0.864	1.055	0.320	0.122	1.640	0.298	0.922	0.971	0.351	0.923	0.967	0.536	0.757	0.847
Hospital4	0.329	0.084	1.767	0.337	0.595	0.836	0.315	0.658	1.149	0.360	0.181	1.618	0.54	0.434	0.655
Children only5	0.497	0.619	1.280	0.478	0.189	1.874	0.466	0.663	0.816	0.498	0.049	2.668	0.748	0.355	1.999
Both Adults and Children5	0.652	0.675	1.314	0.753	0.506	0.606	0.714	0.030	4.701	0.764	0.837	1.170	0.996	0.332	2.627
Patient volume 40–596	0.442	0.680	1.200	0.454	0.825	0.904	0.419	0.486	1.339	0.485	0.171	1.941	0.752	0.331	2.077
Patient volume 60+6	0.443	0.106	0.489	0.458	0.842	0.913	0.428	0.738	0.867	0.502	0.572	1.328	0.790	0.758	1.276
Non MC State7	0.315	0.194	1.506	0.322	0.332	1.367	0.299	0.595	1.172	0.345	0.572	1.215	0.521	0.237	1.852
No sufficient MC knowledge8	0.358	0.002	2.997	0.390	0.007	2.843	0.336	0.967	1.014	0.475	0.005	3.824	0.808	0.061	4.542
	Cox & Snell R2=.148			Cox & Snell R2=.097			Cox & Snell R2=.047			Cox & Snell R2=.084			Cox & Snell R2=.064
	Nagelkerke R2=.197			Nagelkerke R2=.134			Nagelkerke R2=.063			Nagelkerke R2=.125			Nagelkerke R2=.140