Table 2.

Association of All-Cause and CRC-specific Mortality with Selected Demographic and Clinical Characteristics in Chinese Patients with Colorectal Cancer, Shanghai, 1997–2013.

		All-cause mortality			CRC-specific mortality
Characteristics	Number of cases	Number of Events	5-year survival (%)	HRa (95%CI)	Number of Events	5-year survival (%)	HRa (95%CI)
Age
<60	343	105	67.1	1.00(ref)	100	67.7	1.00(ref)
60–70	464	162	60.7	1.37(1.07–1.76)	147	63.6	1.32(1.02–1.71)
70–75	312	136	53.3	1.81(1.39–2.36)	122	57.2	1.71(1.30–2.25)
>=75	333	144	43.3	2.17(1.66–2.84)	130	47.5	2.02(1.53–2.67)
P for trend				<0.0001			<0.0001
Sex
Female	879	346	58.7	1.00(ref)	318	61.1	1.00(ref)
Male	573	201	54.4	1.70(1.32–2.19)	181	58.0	1.65(1.26–2.15)
Education levelb
<High school	826	333	54.8	1.00(ref)	305	57.7	1.00(ref)
High school	371	128	60.3	0.92(0.74–1.14)	117	62.7	0.90(0.72–1.13)
College and above	244	83	60.8	0.81(0.62–1.06)	75	63.8	0.80(0.61–1.05)
P for trend				0.12			0.10
Income
Low	233	106	48.3	1.00(ref)	97	52.0	1.00(ref)
Middle	1113	408	58.2	0.73(0.58–0.92)	371	61.0	0.74(0.58–0.93)
High	106	33	65.8	0.65(0.43–1.00)	31	67.5	0.69(0.44–1.06)
P for trend				0.01			0.02
Cigarette smoking (males only)
Never	198	75	50.3	1.00(ref)	65	56.2	1.00(ref)
Former	91	37	45.8	0.83(0.55–1.25)	33	51.2	0.86(0.56–1.34)
Current	284	89	60.2	0.80(0.57–1.12)	83	61.6	0.84(0.59–1.19)
P for trend				0.20			0.33
Tumor location
Colon	894	348	55.0	1.00(ref)	319	57.9	1.00(ref)
Rectum	558	199	60.7	0.90(0.75–1.07)	180	63.4	0.88(0.73–1.06)
TNM stageb
I	251	29	87.5	1.00(ref)	21	90.7	1.00(ref)
II	322	80	73.5	2.32(1.51–3.56)	67	76.3	2.65(1.62–4.34)
III	400	177	51.3	5.28(3.56–7.83)	165	53.2	6.73(4.27–10.62)
IV	163	141	6.2	23.91(15.85–36.06)	136	6.8	30.01(18.76–48.00)
P for trend				<0.0001			<0.0001

^aAdjusted by age at diagnosis, sex, education, income, smoke, tumor location and TNM stage.

^bSome counts do not add to totals because of missing data (Education missing = 11, TNM stage missing=316).