Table 1 Demographic and clinical data of each group
Variables | Control nonsmoking (n = 49) | Control smoking (n = 12) | Dry AMD nonsmoking (n = 38) | Dry AMD smoking (n = 35) | P value |
|---|---|---|---|---|---|
Age (years), mean ± SD | 63.39 ± 8.38 | 60.75 ± 7.11 | 66.97 ± 9.41 | 66.00 ± 7.67 | 0.06 |
Gender, male/female | 17/32 | 12/0 | 12/26 | 35/0 | < 0.01 |
Pack–year history, mean ± SD | 0 | 35.79 ± 13.91 | 0 | 43.5 ± 31.61 | 0.66 |