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Demographic characteristics of SM exposed survivors with severe ophthalmologic complications (n = 149).
| Sex No. (%) | |
| Male | 148 (99.33%) |
| Age, years | |
| Mean (SD) | 45.84 (8.64) |
| Median (Range) | 43 (22–76) |
| Time since first exposure, years | |
| Mean (SD) | 21.9 (1.14) |
| Median (Range) | 22 (16–26) |
| Age at the time of exposure, years | |
| Mean (SD) | 23.93 (8.40) |
| Median (Range) | 21.50 (1–53) |
| Frequency of chemical gas exposure, no. (%) | |
| One exposure | 99 (66.44%) |
| More than one exposure | 50 (33.56%) |
