Changes in survival patterns in urban Chinese patients with liver cancer

Table 1 Characteristics of liver cancer cases diagnosed during 1981 to 2000, Tianjin, China

Variable	Category	Male		Female		Total
		n	%	n	%	n	%
Sex	Male	-	-	-	-	9666	70.63
	Female	-	-	-	-	4019	29.37
Age	0-19	19	0.20	18	0.45	37	0.27
	20-29	64	0.66	24v	0.60	88	0.64
	30-39	360	3.72	119	2.96	479	3.50
	40-49	1118	11.57	284	7.07	1402	10.24
	50-59	2443	25.27	728	18.11	3171	23.17
	60-69	3155	32.64	1395	34.71	4550	33.25
	70-79	2009	20.78	1129	28.09	3138	22.93
	80+	498	5.15	322	8.1	820	5.99
Type of	Clinical only	981	10.15	473	11.77	1454	10.62
diagnosis	Medical imaging only	5934	61.39	2353	58.55	8287	60.56
	Histology at local site	2710	28.04	1176	29.26	3886	28.40
	Surgical examination or autopsy	14	0.14	8	0.20	22	0.16
	Death certificate only	1	0.01	1	0.02	2	0.01
	Unknown	26	0.27	8	0.20	34	0.25
Occupation	Professionals and administrators	3193	33.03	390	9.7	3583	26.18
	Service industry workers	1220	12.62	334	8.31	1554	11.36
	Industry workers	3937	40.73	989	24.61	4926	36.00
	All others	1316	13.62	2306	57.38	3622	26.46
Type of reporting	City general or specified hospitals	7306	75.58	2968	73.85	10274	75.07
hospital	District general hospital	1495	15.47	624	15.53	2119	15.48
	Community hospital	865	8.95	427	10.62	1292	9.44

Table 2 Proportional hazards analyses of liver cancer diagnosed between 1981 and 2000 in Tianjin urban districts

Variable	Category	Relative risk	95%CI
Sex	Male	1
	Female	1.06	1.01, 1.11
Age	0-19	1
	Every 10-years increase	1.08	1.05, 1.09
Period of	1981-1985	1
diagnosis	Every 5-years increase	0.85	0.83, 0.86
Residence	Hexi District (advantaged)	1
	Other districts	1.02	0.97, 1.08
Occupation	Administrators	1
	Service industry workers	1.06	0.99, 1.13
	Industry workers	1.08	1.03, 1.13
	All others	0.97	0.91, .102
Hospital	District or community hospitals	1
	City general or speciality hospitals	0.76	0.73, 0.79