Table 1.
Baseline characteristics for full dataset
| Variable | Monitored (N=200) | Control (N=201) |
|---|---|---|
| Age (years) mean (SD) | 60.5 (11.8) | 60.8 (10.7) |
| Male N (%) | 117 (58.5) | 120 (59.7) |
| Blood pressure self-monitoring history N (%) | ||
| Never | 128 (64.0) | 126 (62.7) |
| Occasionally | 56 (28.0) | 56 (27.9) |
| Regularly | 16 (8.0) | 19 (9.5) |
| Body mass index (kg/m2) mean (SD) | 30.1 (5.7) | 30.2 (6.2) |
| Smoking N (%) | ||
| Yes | 23 (11.5) | 20 (10.0) |
| Mean (SD) (cigarettes/day) | 17.6 (9.2) | 14.9 (10.4) |
| No | 177 (88.5) | 181 (90.0) |
| Alcohol use* N (%) | ||
| Yes | 158 (79.0) | 159 (79.1) |
| Median (first, third quartile)(units of alcohol(10 ml)/day) | 1.7 (0.9, 2.9) | 2.0 (0.7, 4.0) |
| No | 37 (18.5) | 41 (20.4) |
| Exhaled carbon monoxide category N (%) | ||
| Non-smoker (1–6) | 177 (88.5) | 179 (89.1) |
| Light smoker (7–10) | 0 (0.0) | 3 (1.5) |
| Moderate smoker (11–20) | 8 (4.0) | 11 (5.5) |
| Heavy smoker (20+) | 15 (7.5) | 8 (4.0) |
| Cholesterol level (mmol/l)† mean (SD) | 5.5 (1.0) | 5.3 (1.0) |
| HbA1c level (mmol/mol)‡ mean (SD) | 37.7 (6.5) | 37.7 (5.4) |
| Urinary sodium/creatine ratio§ mean (SD) | 9.7 (5.4) | 10.9 (8.7) |
| Surgery measured systolic BP (mm Hg) mean (SD) | 152.9 (15.1) | 152.4 (14.3) |
| Surgery measured diastolic BP (mm Hg) mean (SD) | 92.1 (11.5) | 89.9 (11.3) |
| Daytime ambulatory systolic BP (mm Hg) mean (SD) | 146.2 (10.6) | 146.2 (10.5) |
| Daytime ambulatory diastolic BP (mm Hg) mean (SD) | 87.1 (10.0) | 85.4 (9.6) |
| HADS29 anxiety score¶ mean (SD) | 5.0 (2.9) | 5.1 (3.6) |
| HADS depression score¶ mean (SD) | 2.8 (2.4) | 2.9 (2.5) |
| Exercise tolerance score35** mean (SD) | 7.8 (2.9) | 7.6 (3.0) |
| Stanford self efficacy questionnaire (short version)36†† | ||
| Mean (SD) | 8.7 (1.4) | 8.5 (1.4) |
| Morisky medication adherence scale37 N (%) | ||
| Sometimes forgets to take medication‡‡ | ||
| Yes | 61 (30.5) | 63 (31.3) |
| No | 132 (66.0) | 132 (65.7) |
| Sometimes careless about taking medication§§ | ||
| Yes | 24 (12.0) | 23 (11.4) |
| No | 169 (84.5) | 173 (86.1) |
| Sometimes stops taking medication when feels better¶¶ | ||
| Yes | 11 (5.5) | 15 (7.5) |
| No | 181 (90.5) | 180 (89.6) |
| Sometimes stops taking medication when feels worse*** | ||
| Yes | 18 (9.0) | 22 (10.9) |
| No | 170 (85.0) | 173 (86.1) |
| Number of defined daily doses of hypertension drugs | ||
| Median (first, third quartile) | 1.5 (1, 3) | 1.7 (1, 3) |
| EuroQol-5D23††† mean (SD) | 0.875 (0.177) | 0.857 (0.220) |
Missing data.
*Five in monitored and one in control group.
†Five in monitored and eight in control group.
‡Seven in monitored and nine in control group.
§Four in monitored and two in control group.
¶Two missing in each group.
**One in monitored and two in control group.
††Six in monitored and one in control group.
‡‡Six in monitored and seven in control group.
§§Five in monitored and seven in control.
¶¶Six in monitored and eight in control.
***Six in monitored and 12 in control group.
†††Five in monitored and six in control group.
HADS, hospital anxiety and depression scale.