Table 1 Bivariate analysis of the relationship between PCI service model and death within 30 days after emergency department visit, the rate of emergency department revisits within 3 days, and the rate of readmission within 14 days among the patients with STEMI.

From: 24-h PCI model does affect the outcome of STEMI patients: a population-based study

Variables	Total		Death within 30 days					Emergency department revisits within 3 days					Readmission within 14 days
	Total		No		Yes		p-value	No		Yes		p-value	No		Yes		p-value
	N	%	N	%	N	%	p-value	N	%	N	%	p-value	N	%	N	%	p-value
Total number	20,648	100.00	18,367	88.95	2,281	11.05		20,414	98.87	234	1.13		20,402	98.81	246	1.19
PCI service model							< 0.001					< 0.001					0.043
Non-24-h	15,628	75.69	13,734	87.88	1,894	12.12		15,423	98.69	205	1.31		15,428	98.72	200	1.28
24-h	5,020	24.31	4,633	92.29	387	7.71		4,991	99.42	29	0.58		4,974	99.08	46	0.92
Gender							< 0.001					0.009					0.510
Female	3,846	18.63	3,066	79.72	780	20.28		3,787	98.47	59	1.53		3,796	98.70	50	1.30
Male	16,802	81.37	15,301	91.07	1,501	8.93		16,627	98.96	175	1.04		16,606	98.83	196	1.17
Age							< 0.001					< 0.001					0.007
< 45	2,084	10.09	2,011	96.50	73	3.50		2,071	99.38	13	0.62		2,067	99.18	17	0.82
45–54	4,277	20.71	4,084	95.49	193	4.51		4,241	99.16	36	0.84		4,239	99.11	38	0.89
55–64	5,578	27.01	5,242	93.98	336	6.02		5,527	99.09	51	0.91		5,512	98.82	66	1.18
65–74	4,135	20.03	3,659	88.49	476	11.51		4,091	98.94	44	1.06		4,084	98.77	51	1.23
75–84	3,146	15.24	2,469	78.48	677	21.52		3,094	98.35	52	1.65		3,101	98.57	45	1.43
≧ 85	1,428	6.92	902	63.17	526	36.83		1,390	97.34	38	2.66		1,399	97.97	29	2.03
Mean ± SD	62.95 ± 14.08		61.64 ± 13.55		73.55 ± 13.79			62.89 ± 14.07		68.34 ± 14.68			62.91 ± 14.08		66.49 ± 14.24
CCI score							< 0.001					< 0.001					< 0.001
0	7,656	37.08	7,211	94.19	445	5.81		7,599	99.26	57	0.74		7,593	99.18	63	0.82
1	6,039	29.25	5,447	90.20	592	9.80		5,973	98.91	66	1.09		5,967	98.81	72	1.19
2	2,492	12.07	2,128	85.39	364	14.61		2,454	98.48	38	1.52		2,460	98.72	32	1.28
3	1,819	8.81	1,534	84.33	285	15.67		1,793	98.57	26	1.43		1,795	98.68	24	1.32
≧ 4	2,642	12.80	2,047	77.48	595	22.52		2,595	98.22	47	1.78		2,587	97.92	55	2.08
Monthly salary (NTD)							< 0.001					0.349					0.011
≦ 17,280	5,257	25.46	4,503	85.66	754	14.34		5,186	98.65	71	1.35		5,190	98.73	67	1.27
17,281–22,080	3,176	15.38	2,770	87.22	406	12.78		3,145	99.02	31	0.98		3,138	98.80	38	1.20
22,081–36,300	7,725	37.41	6,946	89.92	779	10.08		7,640	98.90	85	1.10		7,617	98.60	108	1.40
≧ 36,301	4,490	21.75	4,148	92.38	342	7.62		4,443	98.95	47	1.05		4,457	99.27	33	0.73
Urbanization							< 0.001					0.001					0.001
Level 1	4,287	20.76	3,877	90.44	410	9.56		4,253	99.21	34	0.79		4,262	99.42	25	0.58
Level 2	6,483	31.40	5,806	89.56	677	10.44		6,419	99.01	64	0.99		6,399	98.70	84	1.30
Level 3	3,913	18.95	3,552	90.77	361	9.23		3,871	98.93	42	1.07		3,862	98.70	51	1.30
Level 4	3,355	16.25	2,898	86.38	457	13.62		3,308	98.60	47	1.40		3,309	98.63	46	1.37
Level 5–7	2,610	12.64	2,234	85.59	376	14.41		2,563	98.20	47	1.80		2,570	98.47	40	1.53
Other catastrophic illness							< 0.001					0.001					0.019
No	19,137	92.68	17,194	89.85	1,943	10.15		18,933	98.93	204	1.07		18,919	98.86	218	1.14
Yes	1,511	7.32	1,173	77.63	338	22.37		1,481	98.01	30	1.99		1,483	98.15	28	1.85
Triage level							< 0.001					0.129					0.966
Level 1	5,132	24.85	4,058	79.07	1,074	20.93		5,073	98.85	59	1.15		5,074	98.87	58	1.13
Level 2	11,623	56.29	10,777	92.72	846	7.28		11,505	98.98	118	1.02		11,483	98.80	140	1.20
Level 3	3,625	17.56	3,292	90.81	333	9.19		3,573	98.57	52	1.43		3,580	98.76	45	1.24
Level 4 and 5	268	1.30	240	89.55	28	10.45		263	98.13	5	1.87		265	98.88	3	1.12
PCI							< 0.001					< 0.001					< 0.001
No	3,317	16.06	2,167	65.33	1,150	34.67		3,213	96.86	104	3.14		3,243	97.77	74	2.23
Yes	17,331	83.94	16,200	93.47	1,131	6.53		17,201	99.25	130	0.75		17,159	99.01	172	0.99
Hospital level							< 0.001					< 0.001					0.004
Medical centers	6,831	33.08	6,283	91.98	548	8.02		6,797	99.50	34	0.50		6,774	99.17	57	0.83
Regional hospitals	11,305	54.75	10,021	88.64	1,284	11.36		11,172	98.82	133	1.18		11,150	98.63	155	1.37
District hospitals	2,512	12.17	2,063	82.13	449	17.87		2,445	97.33	67	2.67		2,478	98.65	34	1.35
Hospital ownership							< 0.001					0.025					0.486
Public	6,291	30.47	5,511	87.60	780	12.40		6,204	98.62	87	1.38		6,211	98.73	80	1.27
Private	14,357	69.53	12,856	89.55	1,501	10.45		14,210	98.98	147	1.02		14,191	98.84	166	1.16

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Table 1 Bivariate analysis of the relationship between PCI service model and death within 30 days after emergency department visit, the rate of emergency department revisits within 3 days, and the rate of readmission within 14 days among the patients with STEMI.

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