Table 5.

Multiple regression models for disease treated by surgery

Operation		Cerebral infarction						Intracerebral hemorrhage						Subarachnoid hemorrhage						Stroke
		NOP			OP			NOP			OP			NOP			OP			NOP			OP
		Est	t	p	Est	t	p	Est	t	p	Est	t	p	Est	t	p	Est	t	p	Est	t	p	Est	t	p
Intercept		1.928	43.248	*	2.620	15.431	*	2.493	21.362	*	2.771	18.194	*	1.377	6.298	*	3.026	17.023	*	2.051	48.828	*	2.767	31.579	*
Gender (male)	Female	−0.042	−2.908	**	0.072	1.399	—	0.052	1.282	—	0.168	3.260	**	0.010	0.126	—	−0.048	−1.092	—	−0.021	−1.501	—	0.093	3.344	**
Age		0.003	4.892	*	−0.002	−1.315	—	0.000	−0.303	—	−0.003	−2.127	***	0.005	2.016	***	0.004	2.025	***	0.001	1.821	—	−0.002	−2.102	***
Area (same)	Other	−0.040	−2.312	***	−0.011	−0.211	—	−0.079	−1.541	—	−0.185	−3.165	**	−0.025	−0.298	—	−0.044	−0.998	—	−0.055	−3.261	**	−0.090	−2.975	**
Payment (NHI)	Medical aid	0.195	8.773	*	0.147	1.819	—	0.311	4.825	*	0.177	2.277	***	−0.049	−0.344	—	0.263	3.450	**	0.200	9.190	*	0.188	4.126	*
	Other	0.242	3.987	*	−0.005	−0.021	—	0.371	2.916	**	0.123	0.947	—	0.181	0.855	—	0.377	3.083	**	0.299	5.545	*	0.233	2.800	**
Adm. (OPD)	Emergency	0.234	15.406	*	0.425	7.231	*	0.223	4.173	*	0.368	5.180	*	0.550	6.032	*	0.191	2.602	**	0.296	19.712	*	0.407	12.173	*
Res. (recover)	Death	−0.416	−10.892	*	−0.639	−6.055	*	−1.221	−20.356	*	−1.029	−15.843	*	−1.067	−11.433	*	−1.198	−19.990	*	−0.657	−22.627	*	−1.032	−25.358	*
Dis. (home)	Transfer	−0.112	−4.571	*	0.128	1.171	—	−0.445	−8.606	*	−0.014	−0.213	—	−0.742	−6.806	*	−0.070	−1.061	—	−0.157	−7.132	*	−0.022	−0.507	—
Other diagnosis		0.165	36.829	*	0.174	13.985	*	0.207	18.288	*	0.170	16.845	*	0.214	8.058	*	0.132	13.655	*	0.179	42.025	*	0.161	26.328	*
Risk (non)	HTN	−0.073	−4.089	*	−0.177	−2.756	**	0.014	0.292	—	0.110	1.764	—	−0.081	−0.777	—	−0.015	−0.291	—	−0.062	−3.652	*	−0.014	−0.408	—
	DM	−0.020	−0.730	—	−0.098	−0.709	—	−0.182	−1.544	—	−0.070	−0.590	—	−0.081	−0.362	—	0.003	0.018	—	−0.088	−3.113	**	−0.063	−0.828	—
	HTN and DM	−0.126	−5.277	*	−0.292	−2.984	**	−0.279	−3.554	*	−0.214	−2.102	***	−0.528	−2.320	***	−0.345	−3.165	**	−0.195	−8.236	*	−0.268	−4.541	*
Bed (100−299)	300–499	−0.049	−1.968	***	−0.076	−0.442	—	−0.099	−1.465	—	−0.229	−2.520	***	0.213	1.353	—	−0.253	−1.839	—	−0.045	−1.885	—	−0.214	−3.269	**
	500–999	−0.198	−10.254	*	0.013	0.101	—	−0.271	−5.078	*	−0.311	−4.224	*	0.076	0.597	—	−0.200	−1.638	—	−0.212	−11.347	*	−0.188	−3.561	*
	>1000	−0.345	−14.021	*	−0.436	−3.214	**	−0.264	−3.668	*	−0.530	−5.834	*	−0.029	−0.196	—	−0.440	−3.426	**	−0.357	−14.944	*	−0.500	−8.470	*
Year (2005)	2006	0.046	2.366	***	0.108	1.457	—	−0.029	−0.547	—	0.190	2.831	**	−0.038	−0.393	—	0.048	0.862	—	0.017	0.897	—	0.113	2.979	**
	2007	−0.043	−2.130	***	0.032	0.430	—	0.078	1.376	—	−0.049	−0.711	—	0.055	0.514	—	−0.007	−0.127	—	−0.039	−1.997	**	−0.017	−0.426	—
	2008	−0.073	−3.640	*	0.033	0.471	—	0.076	1.365	—	0.055	0.788	—	0.009	0.084	—	0.096	1.667	—	−0.065	−3.377	*	0.049	1.289	—
R2=		0.177			0.445			0.286			0.398			0.267			0.404			0.185			0.397
Adj. R2=		0.176			0.431			0.280			0.387			0.247			0.393			0.184			0.393
F=		139.826			32.342			48.544			37.826			13.282			35.619			184.148			100.233
p=		0.000			0.000			0.000			0.000			0.000			0.000			0.000			0.000

*p < 0.05, ** p < 0.01, *** p < 0.001.