Table 3. Patient- or tumor-related features of CC patients in 29 subgroups.

Group number	Age (Years)	T stage	Tumor grade	Location	Tumor size (cm)	No. of patients	Median of nodes
1	≥60	T1-T2	Grade I-II	Left	0-5	6180	12.8
2	20-60	T1-T2	Grade III-IV	Left	0-5	332	14.0
3	≥60	T1-T2	Grade III-IV	Left	0-5	536	14.2
4	20-60	T1-T2	Grade I-II	Left	0-5	3284	14.6
5	≥60	T3-T4	Grade I-II	Left	0-5	9836	14.8
6	≥60	T3-T4	Grade III-IV	Left	0-5	1645	15.5
7	≥60	T3-T4	Grade III-IV	Right	0-5	4229	15.7
8	≥60	T3-T4	Grade I-II	Right	0-5	14898	15.9
9	≥60	T1-T2	Grade I-II	Right	0-5	11268	16.2
10	≥60	T1-T2	Grade I-II	Left	≥5	832	16.4
11	≥60	T1-T2	Grade III-IV	Right	0-5	1391	16.8
12	20-60	T3-T4	Grade I-II	Left	0-5	4789	17.1
13	≥60	T1-T2	Grade I-II	Right	≥5	2342	17.8
14	≥60	T3-T4	Grade I-II	Left	≥5	6512	17.8
15	≥60	T3-T4	Grade III-IV	Left	≥5	1313	17.9
16	20-60	T3-T4	Grade III-IV	Right	0-5	919	18.2
17	20-60	T3-T4	Grade III-IV	Left	0-5	881	18.3
18	20-60	T1-T2	Grade III-IV	Right	0-5	259	18.9
19	20-60	T1-T2	Grade I-II	Left	≥5	475	19.0
20	20-60	T1-T2	Grade I-II	Right	0-5	2501	19.1
21	≥60	T3-T4	Grade I-II	Right	≥5	13284	19.4
22	≥60	T3-T4	Grade III-IV	Right	≥5	6758	19.9
23	≥60	T1-T2	Grade III-IV	Right	≥5	389	20.3
24	20-60	T3-T4	Grade I-II	Left	≥5	3756	20.7
25	20-60	T3-T4	Grade I-II	Right	0-5	3564	21.0
26	20-60	T1-T2	Grade I-II	Right	≥5	633	22.1
27	20-60	T3-T4	Grade III-IV	Left	≥5	799	22.3
28	20-60	T3-T4	Grade I-II	Right	≥5	4374	23.7
29	20-60	T3-T4	Grade III-IV	Right	≥5	1748	24.0