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Age and sex distribution and co-morbidity
| Variable | Group A (n = 75) | Group B (n = 94) |
| Mean age (SD) | 79.4 (9.8) | 78.4 (8.5) |
| Sex: | ||
| Male | 25 (33.3%) | 31 (33%) |
| Female | 50 (66.7%) | 63 (67%) |
| ARMD | 7 | 1 |
| CVA | 1 | 0 |
| ERM | 1 | 0 |
ARMD, age related macular degeneration; CVA, cerebrovascular accident; ERM, epiretinal membrane.
