Participant characteristics
| Variable | Description | Female (7) | Male (8) |
| Age | Mean age, years | 51 years | 49 years |
| Hypertension status | Hypertensive | 7 | 4 |
| Not hypertensive | – | 4 | |
| HIV status | Positive | 1 | – |
| Negative | 6 | 8 | |
| Marital status | Single | 2 | – |
| Married–monogamous | 2 | 8 | |
| Divorced | 1 | – | |
| Widow | 1 | – | |
| Married polygamous | 1 | – | |
| Education | Some primary school but did not complete | 1 | – |
| Completed primary education | 3 | 1 | |
| Some secondary but did not complete | 2 | 1 | |
| Completed secondary education | – | 5 | |
| Postsecondary education | 1 | 1 |