From: Imaging of asbestos-related lung and pleural diseases as an endemic exposure in Egypt
 | Malignant (n = 24) | Benign (n = 16) | Test of Sig. | p |
---|---|---|---|---|
Duration of exposure to asbestos | ||||
 Min.–Max. | 37.0–78.0 | 45.0–70.0 | U = 94.0* | 0.007* |
 Mean ± SD. | 55.46 ± 12.49 | 55.31 ± 7.51 |  |  |
 Median | 55.0 | 54.0 |  |  |
Time since first exposure (years) | ||||
 Min.–Max. | 10.0–36.0 | 13.0–35.0 | t = 3.019* | 0.005* |
 Mean ± SD. | 20.04 ± 6.59 | 26.75 ± 7.22 |  |  |
 Median | 19.0 | 29.0 |  |  |
Latent duration (year) | ||||
 Min.–Max. | 3.0–8.0 | 1.0–5.0 | t = 4.231* | < 0.001* |
 Mean ± SD. | 5.67 ± 1.20 | 2.47 ± 1.34 |  |  |
 Median | 6.0 | 2.0 |  |  |