Incidence trends and survival prediction of urothelial cancer of the bladder: a population-based study

Table 1 Baseline characteristic of the patients with urothelial cancer of the bladder

Factors	Training cohort (n = 8058)	%	Validation cohort (n = 3454)	%	Total (n = 11512)	%	P
Age¹	70.20 ± 11.61		70.68 ± 11.92		70.35 ± 11.71		0.04
Sex							0.07
Male	6322	78.46	2658	76.95	8980	78.01
Female	1736	21.54	796	23.05	2532	21.99
Grade							0.99
Well	309	3.83	134	3.88	443	3.85
Moderately	1059	13.14	455	13.17	1514	13.15
Poorly	1735	21.53	738	21.37	2473	21.48
Undifferentiated	4955	61.49	2127	61.58	7082	61.52
Ethnic group							0.97
White	7171	88.99	3069	88.85	10240	88.95
Black	458	5.68	198	5.73	656	5.70
Other	429	5.32	187	5.41	616	5.35
Marital status							0.06
Married	5098	63.27	2111	61.12	7209	62.62
Single	1025	12.72	446	12.91	1471	12.78
SDW	1935	24.01	897	25.97	2832	24.60
Insurance							0.41
Yes	7789	96.66	3349	96.96	11138	96.75
No	269	3.34	105	3.04	374	3.25
Location							0.19
Urachus/dome	303	3.76	140	4.05	443	3.85
Trigone, neck, ureteric orifice	951	11.80	365	10.57	1316	11.43
Wall	2920	36.24	1294	37.46	4214	36.61
NOS/overlap	3884	48.20	1655	47.92	5539	48.12
Stage							0.82
Localized	6782	84.16	2906	84.13	9688	84.16
Regional	953	11.83	417	12.07	1370	11.90
Distant	323	4.01	131	3.79	454	3.94
AJCC							0.41
I	5214	64.71	2247	65.06	7461	64.81
II	1627	20.19	685	19.83	2312	20.08
III	499	6.19	236	6.83	735	6.38
IV	718	8.91	286	8.28	1004	8.72
Size							0.26
1-20 mm	1647	20.44	746	21.60	2393	20.79
21-49 mm	3650	45.30	1516	43.89	5166	44.87
≥ 50 mm	2761	34.26	1192	34.51	3953	34.34
Regional lymph nodes removed							0.22
Yes	1574	19.53	641	18.56	2215	19.24
No	6484	80.47	2813	81.44	9297	80.76
Chemotherapy							0.45
Yes	2652	32.91	1162	33.64	3814	33.13
No	5406	67.09	2292	66.36	7698	66.87
Radiation							0.42
Yes	493	6.12	225	6.51	718	6.24
No	7565	93.88	3229	93.49	10794	93.76

SDW separated or divorced or widowed, AJCC American Joint Committee on Cancer
¹The age was showed as mean ± standard deviation

ISSN: 1477-7819