Table 1.
Demographic differences in the training and validation cohorts.
| Characteristic | Training group(n=85) | Validation group(n=35) | P value |
|---|---|---|---|
| Subtype (%) | 0.973 a | ||
| LUAD | 44 (51.8) | 18 (51.4) | |
| LUSC | 41(48.2) | 17 (48.6) | |
| Gender (%) | 0.971 a | ||
| Men | 58 (68.2) | 24 (68.6) | |
| Women | 27 (31.8) | 11 (31.4) | |
| Age (years, mean±SD) | 61.33±10.79 | 59.94±9.39 | 0.508 b |
| Smoking status (%) | |||
| yes | 39 (45.9) | 16 (45.7) | 0.987 a |
| no | 46 (54.1) | 19 (54.3) | |
| Family history | |||
| yes | 22 (25.9) | 6 (17.1) | 0.304 a |
| no | 63 (74.1) | 29 (82.9) |
There is no statistically significant difference (P > 0.05) between the training and validation groups.
a
Chi-square test.
b
Student’s t-test.
Lung adenocarcinoma, LUAD; Lung squamous cell carcinoma, LUSC; Standard deviation (SD).