Sociodemographic and intervention participant data (n=35)
| Intervention participants | Usual care participants | |
| n | 28 | 7 |
| Median duration of interview (range) | 38 (15–67) min | 28 (22–40) min |
| Median age (range) | 70 (41–87) years | 67 (52–77) years |
| Gender | 71% female | 43% female |
| Ethnicity | ||
| White | 24 | 6 |
| Black African | 1 | |
| Pakistani | 1 | |
| Other | 2 | 1 |
| Education levels | 9 No formal education | 2 No formal education |
| 8 GCSE or A level | 3 GCSE or A level | |
| 10 Higher education | 1 Higher education | |
| 1 Other | 1 Other | |
| Median number of weeks into the study at which the interview took place (range) | 20 (10–57) weeks | 17 (7–24) weeks |
| Poorly controlled BP at the time of the interview | 10/28 (36%) | NA* |
| Medication change recommended during the study | 15/28 (54%) | NA |
| Accessed optional healthy lifestyles session | 15/28 (54%) | NA |
↵*As BP self-monitoring was a key component of the intervention, BP readings were available for the intervention group throughout the duration of the study but data about BP from the usual care group were only available at RCT baseline and follow-up points.
BP, blood pressure; GCSE, General Certificate of Secondary Education; NA, not applicable; RCT, randomised controlled trial.