Dorien Brouwer

29 Determinants of intention to change health-related behavior and actual change PART 1 b. Intention to change diet Beta p aBeta 1 aBeta 2 Total Self-efficacy 0.34 (-0.11-0.79) 0.14 Self-efficacy at home 0.18 (-0.17-0.53) 0.31 Self-efficacy when not at home 0.30 (0.04-0.55) 0.02 0.38 ( 0.13-0.63) 0.56 (0.23-0.89) Fear 0.04 (0.00-0.07) 0.01 0.04 (-0.00-0.07) 0.03 (-0.02-0.08). Severity 0.41 (0.19-0.72) 0.01 0.09 (-0.24-0.42) Susceptibility -0.17 (-0.42-0.09) 0.19 Response-efficacy 0.42 (0.12-0.72) 0.01 0.42 ( 0.13-0.71) 0.29 (-0.17-0.75) c. Intention to stop smoking OR p aBeta aBeta 2 Total self-efficacy 0.37 (-0.36-1.07) 0.30 Self-efficacy 0.63 (0.34-0.92) 0.00 0.48 (0.21-0.75) 0.39 (-0.28-1.06) Fear 0.05 (0.01-0.09) 0.02 0.04 (-0.01-0.07) Severity 0.37 (-0.07-0.81) 0.10 Susceptibility -0.12 (-0.50-0.26) 0.53 Response-efficacy 0.75 (0.31-1.19) 0.00 0.46 (0.09-0.84) 0.52 (-0.26-1.30) 1 multivariable regression analysis, 2 adjusted for age, sex, event type, CES-D and score on MoCA Discussion In this prospective study, we assessed determinants of intention to change health- related behavior and actual change based on the Protection Motivation Theory in stroke patients. We showed that self-efficacy, response-efficacy, and fear were independently associated with intention to change health-related behavior, with self-efficacy as the strongest determinant. Furthermore, we found a trend to increased health-related behavior change in patients with higher intention to change. The Protection Motivation Theory has shown to be an useful model for predicting health-protective intentions and behavior changes in diabetes, coronary heart disease, and cancer. [24, 37] The application of the protection motivation theory in physical activity has been tested in several studies. It shows early evidence for the effectiveness of the Protection Motivation Theory as a theoretical framework for guiding the development of physical activity interventions among healthy populations. [38, 39] In studies with patients with myocardial infarction and diabetes, the protection motivation theory has shown to be useful to explain physical activity. [29, 40-43] One study found an association between