Table 1 Clinical and demographic Characteristics.
Variables | Total | Training | Validation | P |
|---|---|---|---|---|
(n = 580) | (n = 406) | (n = 174) | ||
Age, n (%) | 0.623 | |||
< 60years | 207 (36) | 148 (36) | 59 (34) | |
≥ 60years | 373 (64) | 258 (64) | 115 (66) | |
Sex, n (%) | 0.829 | |||
Female | 178 (31) | 123 (30) | 55 (32) | |
Male | 402 (69) | 283 (70) | 119 (68) | |
Race, n (%) | 0.516 | |||
White | 515 (89) | 364 (90) | 151 (87) | |
Black | 31 (5) | 19 (5) | 12 (7) | |
Other | 34 (6) | 23 (6) | 11 (6) | |
Marital status, n (%) | 0.29 | |||
Single | 120 (21) | 86 (21) | 34 (20) | |
Married | 337 (58) | 241 (59) | 96 (55) | |
Other | 123 (21) | 79 (19) | 44 (25) | |
Tumor size, n (%) | 0.312 | |||
< 2 cm | 221 (38) | 154 (38) | 67 (39) | |
< 4, ≥2 | 213 (37) | 156 (38) | 57 (33) | |
≥ 4 cm | 146 (25) | 96 (24) | 50 (29) | |
Grade, n (%) | 0.209 | |||
I | 113 (19) | 83 (20) | 30 (17) | |
II | 266 (46) | 183 (45) | 83 (48) | |
III | 195 (34) | 138 (34) | 57 (33) | |
IV | 6 (1) | 2 (0) | 4 (2) | |
SCS, n (%) | 0.16 | |||
Localized | 282 (49) | 201 (50) | 81 (47) | |
Regional | 151 (26) | 111 (27) | 40 (23) | |
Distant | 147 (25) | 94 (23) | 53 (30) | |
AJCC Stage, n (%) | 0.5 | |||
I | 257 (44) | 183 (45) | 74 (43) | |
II | 106 (18) | 78 (19) | 28 (16) | |
III | 57 (10) | 36 (9) | 21 (12) | |
IV | 160 (28) | 109 (27) | 51 (29) | |
T Stage, n (%) | 0.204 | |||
T1-T2 | 387 (67) | 278 (68) | 109 (63) | |
T3-T4 | 193 (33) | 128 (32) | 65 (37) | |
N Stage, n (%) | 0.592 | |||
N0-N1 | 540 (93) | 376 (93) | 164 (94) | |
N2-N3 | 40 (7) | 30 (7) | 10 (6) | |
M Stage, n (%) | 0.136 | |||
M0 | 571 (98) | 402 (99) | 169 (97) | |
M1 | 9 (2) | 4 (1) | 5 (3) | |
Surgery, n (%) | 0.79 | |||
No | 98 (17) | 67 (17) | 31 (18) | |
Yes | 482 (83) | 339 (83) | 143 (82) | |
lymphadenectomy, n (%) | 0.956 | |||
No | 509 (88) | 357 (88) | 152 (87) | |
Yes | 71 (12) | 49 (12) | 22 (13) | |
Radiation, n (%) | 0.196 | |||
No | 345 (59) | 234 (58) | 111 (64) | |
Yes | 235 (41) | 172 (42) | 63 (36) | |
Chemotherapy, n (%) | 0.346 | |||
No | 461 (79) | 318 (78) | 143 (82) | |
Yes | 119 (21) | 88 (22) | 31 (18) | |
Systemic therapy, n (%) | 0.775 | |||
No | 498 (86) | 347 (85) | 151 (87) | |
Yes | 82 (14) | 59 (15) | 23 (13) |
