Table 1.
Patient characteristics
| Characteristics | PN group (n = 173) | HC group (n = 40) | P value |
|---|---|---|---|
| Age (years), median (IQR) a | 45 (32, 55) | 42 (33, 48) | 0.39 |
| Gender, n (%) b | 0.25 | ||
| Male | 69 (39.9%) | 12 (30%) | |
| Female | 104 (60.1%) | 28 (70%) | |
| Smoking history, n (%) b | < 0.001 | ||
| NO | 134 (77.5%) | 40 (100.0%) | |
| Yes | 39 (22.5%) | 0 (0.0%) | |
| Personal history of cancer, n (%) c | 0.99 | ||
| NO | 167 (96.5%) | 39 (97.5%) | |
| Yes | 6 (3.5%) | 1 (2.5%) | |
| Risk stratification of PN, n (%) | |||
| Unable to layer | 9 (5.2%) | / | |
| Low risk | 100 (57.8%) | / | |
| Moderate risk | 58 (33.5%) | / | |
| High risk | 6 (3.5%) | / | |
P < 0.05 was considered a statistically significant difference
IQR, interquartile range; PN, pulmonary nodule; HC, healthy control
a: Wilcoxon rank sum test; b: Chisq test; c: Yates’ correction