| Variables | Frequency | percent | P value | |
| Sex of patients | Female | 97 | 50.8% | 0.83 |
| Male | 94 | 49.2% |
| |
| Total | 191 | 100.0% |
| |
| Race of patients | Non-African | 183 | 95.8% | <0.001 |
| African | 8 | 4.2% |
| |
| Total | 191 | 100.0% |
| |
| Age category | 0 - 5 years | 28 | 14.7% | <0.001 |
| 6 - 18 years | 13 | 6.8% |
| |
| 19 - 45 years | 55 | 28.8% |
| |
| 46 - 65 years | 57 | 29.8% |
| |
| 66 years and above | 38 | 19.9% |
| |
| Total | 191 | 100.0% |
| |