Table 2.
Clinical characteristics of pneumothorax patients with Nrf2 expression.
| Variables | Item | Patient No. (%) | Low | High | p value | ||
|---|---|---|---|---|---|---|---|
| No. | % | No. | % | ||||
| Age, years | ≤20 | 51 (58.0) | 33 | 64.7 | 18 | 25.3 | 0.165 a |
| >20 | 37 (42.0) | 29 | 78.4 | 8 | 21.6 | ||
| Sex | Male | 76 (86.4) | 54 | 71.1 | 22 | 28.9 | 0.743 b |
| Female | 12 (13.6) | 8 | 66.7 | 4 | 33.3 | ||
| BMI, kg/m2 | <18 | 35 (39.8) | 26 | 74.3 | 9 | 25.7 | 0.522 a |
| ≥18 | 53 (60.2) | 36 | 67.9 | 17 | 32.1 | ||
| Recurrence | No | 43 (48.9) | 25 | 58.1 | 18 | 41.9 | 0.013 a |
| Yes | 45 (51.1) | 37 | 82.2 | 8 | 17.8 | ||
| Smoking status | No | 71 (80.7) | 48 | 67.6 | 23 | 32.4 | 0.375 b |
| Yes | 17 (19.3) | 14 | 82.4 | 3 | 17.6 | ||
| Side involved | Unilateral | 63 (71.6) | 46 | 73.0 | 17 | 27.0 | 0.403 a |
| Bilateral | 25 (28.4) | 16 | 64.0 | 9 | 36.0 | ||
BMI = body mass index; Nrf2 = nuclear factor erythroid 2‐related factor 2.
a
The p value was calculated by the chi‐square test.
b
The p value was calculated by the Fisher's exact test.