Table 1

Bivariate analysis of lung cancer patient characteristics for different treatment intervals

Variables	Total		Interval from cancer diagnosis to treatment								P value
	Total		≤7 days		8~14 days		15~60 days		≥61 days
	N	%	N	%	N	%	N	%	N	%
Total number	42 962	100	15 769	36.7	9296	21.64	12 510	29.12	5387	12.54	–
Five-year survival rate	42 962	17.61	15 769	26.12	9296	15.96	12 510	12.99	5387	6.02	<0.001
Gender
Female	15 799	36.77	6154	38.95	3235	20.48	4419	27.97	1991	12.6
Male	27 163	63.23	9615	35.4	6061	22.31	8091	29.79	3396	12.5
Age
≤44	2106	4.9	889	42.21	455	21.6	568	26.97	194	9.21
45~54	5686	13.23	2375	41.77	1263	22.21	1549	27.24	499	8.78
55~64	9155	21.31	3634	39.69	2033	22.21	2658	29.03	830	9.07
65~74	12 659	29.47	4548	35.93	2801	22.13	3819	30.17	1491	11.78
≥75	13 356	31.09	4323	32.37	2744	20.55	3916	29.32	2373	17.77
Mean age (m, SD)	66.76	12.44	65.52	12.55	66.45	12.22	67.04	12.15	70.25	12.46	<0.001
Monthly salary											<0.001
Low-income	461	1.07	137	29.72	101	21.91	154	33.41	69	14.97
≤17 280	1475	3.43	542	36.75	311	21.08	447	30.31	175	11.86
17 281~22 800	22 935	53.38	8074	35.2	5079	22.15	6751	29.44	3031	13.22
22 801~28 800	8069	18.78	2961	36.7	1690	20.94	2376	29.45	1042	12.91
28 801~36 300	2676	6.23	1011	37.78	588	21.97	782	29.22	295	11.02
36 301~45 800	3280	7.63	1333	40.64	689	21.01	923	28.14	335	10.21
≥45 801	4066	9.46	1711	42.08	838	20.61	1077	26.49	440	10.82
Urbanisation											0.186
Level 1	11 759	27.37	4335	36.87	2494	21.21	3404	28.95	1526	12.98
Level 2	12 117	28.2	4506	37.19	2615	21.58	3527	29.11	1469	12.12
Level 3	6523	15.18	2334	35.78	1424	21.83	1946	29.83	819	12.56
Level 4	6795	15.82	2518	37.06	1506	22.16	1974	29.05	797	11.73
Level 5	1524	3.55	523	34.32	338	22.18	439	28.81	224	14.7
Level 6	2217	5.16	807	36.4	490	22.1	627	28.28	293	13.22
Level 7	2027	4.72	746	36.8	429	21.16	593	29.26	259	12.78
CCI score											<0.001
≤3	20 388	47.46	7475	36.66	4576	22.44	6186	30.34	2151	10.55
4~6	7587	17.66	2761	36.39	1646	21.7	2218	29.23	962	12.68
≥7	14 987	34.88	5533	36.92	3074	20.51	4106	27.4	2274	15.17
Other catastrophic illness											<0.001
No	41 474	96.54	15 300	36.89	8984	21.66	12 076	29.12	5114	12.33
Yes	1488	3.46	469	31.52	312	20.97	434	29.17	273	18.35
Cancer stage											<0.001
Stage I	5681	13.22	3226	56.79	910	16.02	1269	22.34	276	4.86
Stage II	1526	3.55	589	38.6	338	22.15	462	30.28	137	8.98
Stage III	11 696	27.22	4030	34.46	2843	24.31	3500	29.92	1323	11.31
Stage IV	24 059	56	7924	32.94	5205	21.63	7279	30.25	3651	15.18
MDT care											<0.001
No	37 716	87.79	13 669	36.24	8012	21.24	10 974	29.1	5061	13.42
Yes	5246	12.21	2100	40.03	1284	24.48	1536	29.28	326	6.21
Hospital level											<0.001
Medical centres	29 228	68.03	11 075	37.89	6452	22.07	8427	28.83	3274	11.2
Regional hospitals	12 601	29.33	4395	34.88	2655	21.07	3787	30.05	1764	14
District hospitals	1014	2.36	261	25.74	178	17.55	279	27.51	296	29.19
Others	119	0.28	38	31.93	11	9.24	17	14.29	53	44.54
Hospital ownership											<0.001
Public	16 770	39.03	6619	39.47	3776	22.52	4558	27.18	1817	10.83
Private	26 192	60.97	9150	34.93	5520	21.08	7952	30.36	3570	13.63
Hospital services volume											<0.001
Low	10 807	25.15	3905	36.13	2177	20.14	2935	27.16	1790	16.56
Middle	21 043	48.98	7519	35.73	4652	22.11	6486	30.82	2386	11.34
High	11 112	25.86	4345	39.1	2467	22.2	3089	27.8	1211	10.9

*Log-rank test.
CCI, Charlson Comorbidity Index; MDT, multidisciplinary team.