Table 1 Baseline characteristics of participants
Characteristics | Training group | Validation group | P Value | |
|---|---|---|---|---|
No. of cases | 188 | 53 | ||
Period of diagnosis | 2019.1 ~ 2019.12 | 2022.1 ~ 2022.6 | ||
Age | ≤ 65 y | 109 (58) | 28 (52.8) | 0.504 |
＞65y | 79 (42) | 25 (47.2) | ||
Sex | Male | 91 (48.4) | 26 (49.1) | 0.933 |
Female | 97 (51.6) | 27 (50.9) | ||
Tumor site | Inferior left | 32(17) | 8(15.1) | 0.722 |
Superior left | 47(25) | 10(18.9) | ||
Inferior right | 36(19.1) | 14(26.4) | ||
Middle right | 11(5.9) | 4(7.5) | ||
Superior right | 62(33) | 17(32.1) | ||
Surgical approach | Lobectomy | 106(56.4) | 25(47.2) | 0.234 |
Sublobar resection | 82(43.6) | 28(52.8) | ||
CEA | ＞5 | 39(20.7) | 8(15.1) | 0.359 |
≤ 5 | 149(79.3) | 45(84.9) | ||
NSE | ＞17 | 8(4.3) | 9(17) | 0.004 |
≤ 17 | 180(95.7) | 44(83) | ||
Cyfra21-1 | ＞3.3 | 58(30.9) | 11(20.8) | 0.151 |
≤ 3.3 | 130(69.1) | 42(79.2) | ||
CA199 | ＞34 | 7(3.7) | 1(1.9) | 0.822 |
≤ 34 | 181(96.3) | 52(98.1) | ||
CA724 | ＞8.2 | 13(6.9) | 10(18.9) | 0.009 |
≤ 8.2 | 175(93.1) | 42(81.1) | ||
CA125 | ＞35 | 8(4.3) | 2(3.8) | 1.000 |
≤ 35 | 180(95.7) | 51(96.2) | ||
NLR | 2.22(1.68,2.92) | 2.36 (1.81,3.42) | 0.102 | |
PLR | 131.64 (105.30,164.36) | 139.61 (111.65,169.08) | 0.229 | |
CT size | 16 (12,25) | 16 (12,23.5) | 0.579 | |
CTR | ＞75% | 90(47.9) | 14(26.4) | 0.013 |
50%~75% | 22(11.7) | 14(26.4) | ||
25%~50% | 34(18.1) | 11(20.8) | ||
≤ 25% | 42(22.3) | 14(26.4) | ||
TNM stage | I + II | 168(79.4) | 50(94.3) | 0.276 |
III + IV | 20(20.6) | 3(5.7) | ||
STAS | + | 41(21.8) | 11(20.8) | 0.869 |
- | 147(20.8) | 42(79.2) | ||