Table 1 Comparison of age, interval between onset of exposure and clinical diagnosis, and exposure duration between the two groups
From: Do bullae and emphysema increase risk of pneumothorax in silicosis?
Variable | Silicosis with SSP(mean ± SD) | Silicosis without SSP (mean ± SD) | T | p value |
|---|---|---|---|---|
Age at the end of exposure (years) | 26.43 ± 5.85 | 34.50 ± 17.7 | 1.22 | 0.073 |
Interval between the onset of exposure and clinical diagnosis (years) | 3.2 ± 1.1 | 5.42 ± 1.6 | 3.5 | 0.002 |
Exposure duration (years) | 2.14 ± 1 | 2.86 ± 1.2 | 1.3 | 0.19 |