Table 3 Comparison between study groups according to the IMB model
Outcome | Intervention | Control | P-value |
|---|---|---|---|
Informational | |||
Perceived knowledge of home BP target, n (%), yes | 57 (97) | 47 (80) | 0.008 |
Able to report correct home BP target, n (%), yes | 19 (32) | 8 (14) | 0.016 |
Home BP target set, n (%), yes | 59 (100) | 24 (42) | < 0.001 |
Correctly set home BP target, n (%), yes | 40 (68) | 11 (19) | < 0.001 |
Perceived understanding of the pharmacodynamics of the medication, n (%), yes | 49 (83) | 37 (63) | 0.013 |
Perceived knowledge about potential side effects of the medication, n (%), yes | 44 (75) | 34 (58) | 0.052 |
Patients reporting to have received written guidance on the medication, n (%), yes | 53 (90) | 23 (39) | < 0.001 |
Patients reporting to have received written guidance on home BP measurements, n (%), yes | 54 (92) | 40 (68) | < 0.001 |
Perceived uncertainty about medication, n (%), yes | 7 (12) | 4 (7) | 0.34 |
Motivational | |||
Perceived necessity of antihypertensive medication (0 = not necessary at all, 10 = very necessary) | 8.72 (1.32) | 9.01 (1.29) | 0.26 |
Perceived quality of consultation (0 = very bad, 10 = very good) | 9.18 (1.04) | 9.17 (1.33) | 0.99 |
Perceived degree of difficulty to start antihypertensive medication (0 = very difficult, 10 = very easy) | 8.49 (2.14) | 8.53 (1.93) | 0.97 |
Perceived degree of patient-centeredness, n (%), yes | 56 (95) | 56 (95) | 1.00 |
Behavioural skills | |||
Agreement on the next appointment, n(%), yes | 56 (95) | 38 (64) | < 0.001 |
Perceived self-confidence for successful treatment, n(%), yes | 57 (97) | 59 (100) | 0.50 |
Perceived knowledge about how to act in case medication side effects occur, n(%), yes | 50 (85) | 45 (76) | 0.24 |
Perceived knowledge about how to act in case the BP target is not reached, n(%), yes | 41 (69) | 36 (61) | 0.33 |