| Variable | Cases N = 103 (%) | Controls N = 103 (%) | Total N = 206 (%) | p-value |
| Age (years) |
|
|
|
|
| <19 | 1 (1) | 1 (1) | 2 (1) | 0.75 |
| 19 - 25 | 15 (14.6) | 15 (14.6) | 30 (14.6) | 0.58 |
| 26 - 30 | 43 (41.7) | 43 (41.7) | 86 (41.7) | 0.56 |
| 31 - 35 | 35 (34) | 35 (34) | 70 (34) | 0.56 |
| >35 | 9 (8.7) | 9 (8.7) | 18 (8.7) | 0.6 |
| Mean ± SD | 29.61 ± 4.69 | 29.61 ± 4.69 | - | 1.0 |
| Profession |
|
|
|
|
| Civil servant | 36 (35) | 23 (22.3) | 59 (28.6) | 0.03 |
| Self employed | 12 (11.7) | 9 (8.7) | 21 (10.2) | 0.3 |
| Housewife | 14 (13.6) | 15 (14.6) | 29 (14.1) | 0.5 |
| Private sector | 14 (13.6) | 31 (30.1) | 45 (21.8) | 0.001 |
| Student | 27 (26.2) | 25 (24.3) | 52 (25.2) | 0.4 |
| Level of education |
|
|
|
|
| No formal education | 0 (0) | 1 (1) | 1 (0.5) | 0.5 |
| Primary | 3 (2.9) | 5 (4.9) | 8 (3.9) | 0.36 |
| Secondary | 21 (20.4) | 26 (25.2) | 47 (22.8) | 0.25 |
| Tertiary | 78 (75.7) | 70 (68) | 148 71.8) | 0.14 |
| Marital status |
|
|
|
|
| Married | 77 (74.8) | 66 (64.1) | 143 (69.4) | 0.07 |
| Single | 25 (24.3) | 36 (35) | 61 (29.6) | 0.06 |
| Religion |
|
|
|
|
| Christian | 96 (93.2) | 94 (91.3) | 190 (92.2) | 0.4 |
| Muslim | 5 (4.9) | 4 (3.9) | 9 (4.4) | 0.5 |
| Jehovah witness | 1 (1) | 5 (4.9) | 6 (2.9) | 0.11 |