Table 1. Socio-economic and demographic characteristics of the study population.
| Variable | Frequency | Percentage [%, (95% CI)] |
|---|---|---|
| Sex (N=400) | ||
| Male | 132 | 33.0 (28.6–37.8) |
| Female | 268 | 67.0 (62.3–71.4) |
| Ethnicity (N=380) | ||
| Sudanese | 344 | 90.5 (87.2–93.1) |
| Semi-bantou | 22 | 5.8 (3.9–8.6) |
| Bantou | 14 | 3.7 (2.2–6.1) |
| Residence (N=400) | ||
| Urban | 382 | 95.5 (93.0–97.1) |
| Rural | 18 | 4.5 (2.9–7.0) |
| Socio-economic status (N=400) | ||
| Low | 157 | 39.2 (34.6–44.1) |
| Medium | 231 | 57.8 (52.9–62.5) |
| High | 12 | 3.0 (1.7–5.2) |
| Age range (years), (N=400) | ||
| ≤25 | 3 | 0.8 (0.3–2.2) |
| 26–50 | 145 | 36.2 (31.7–41.2) |
| 51–65 | 184 | 46.0 (41.2–50.9) |
| >65 | 68 | 17.0 (13.6–21.0) |