Table I.
Patient characteristics in all of the samples used in the training and validation stages.
| Training stage | Validation stage | |||
|---|---|---|---|---|
| Characteristic | SqCC (n=22) | High risk (n=22) | SqCC (n=22) | High risk (n=22) |
| Sex (n) | ||||
| Male | 11 | 11 | 15 | 16 |
| Female | 11 | 11 | 7 | 6 |
| Race (n) | ||||
| Caucasian | 18 | 21 | 14 | 19 |
| Noncaucasian | 4 | 1 | 8 | 3 |
| Age (years) | ||||
| Median | 62.95 | 64.14 | 56.75 | 73.44 |
| Range | 49–81 | 51–82 | 69–82 | 49–73 |
| Smoking history | ||||
| Median (years) | 59.17 | 47.04 | 52.90 | 32.28 |
| Nonsmoker (n) | 2 | 0 | 0 | 0 |
| Tumor stage (n) | ||||
| Stage I | 12 | − | 14 | − |
| Stage II | 4 | − | 1 | − |
| Stage III | 6 | − | 7 | − |
SqCC, squamous cell lung cancer.