Table 2. Demographic and clinical features of study subjects.
| Clinical feature | XFG subjects n=50 | POAG subjects n=50 | Control subjects n=50 |
|---|---|---|---|
| Age at recruitment (years–mean±SD) |
70.4±8.6 |
57.0±10.1 |
68.4±9.6 |
| Age at diagnosis (years–mean±SD) |
68.0±9.0 |
54.5±10.6 |
N/A |
| Sex | |||
| - Female |
20 |
27 |
20 |
| - Male |
30 |
23 |
30 |
| Tribal affiliation | |||
| - Pedi |
1 |
10 |
5 |
| - Sotho |
9 |
6 |
6 |
| - Tswana |
11 |
4 |
11 |
| - Venda |
3 |
1 |
2 |
| - Xhosa |
7 |
4 |
3 |
| - Zulu |
12 |
24 |
14 |
| - Swazi |
2 |
1 |
2 |
| - Ndebele |
2 |
0 |
1 |
| - Tsonga |
3 |
0 |
6 |
| IOP at diagnosis (mmHg–mean±SD) |
30.6±12.9 |
33.3±9.4 |
13.4±2.5 |
| Cup-disc ratio at diagnosis (mean±SD) | 0.8±0.2 | 0.9±0.1 | 0.4±0.1 |