| Variable | No. | (%) |
| Hypertensiona |
|
|
| Yes | 308 | (19.3) |
| No | 1292 | (80.7) |
| Total | 1600 | (100.0) |
| Diabetes mellitusb |
|
|
| Yes | 107 | (6.7) |
| No | 1493 | (93.3) |
| Total | 1600 | (100.0)
|
| Chronic pains |
|
|
| Yes | 1032 | (64.5) |
| No | 746 | (35.5) |
| Total | 1600 | (100.0) |
| Walking aid |
|
|
| Yes | 242 | (23.4) |
| No | 790 | (76.6) |
| Total | 1032 | (100.0) |
| Urinary problems |
|
|
| Yes | 442 | (27.6) |
| No | 1158 | (72.4) |
| Total | 1600 | (100.0) |
| Eye problems |
|
|
| Yes | 1134 | (70.9) |
| No | 851 | (20.1) |
| Total | 1600 | (100.0) |