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Table 3 Comparison between study groups according to the IMB model

From: Feasibility of a checklist in treating hypertension in primary care – base line results from a cluster-randomised controlled trial (check and support)

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
  1. Abbreviations: IMB model Information-Motivation-Behavioural skills model; BP Blood pressure