The twelve background LVs were divided into three groups: demogra

The twelve background LVs were divided into three groups: demographic variables (gender, age, education level and occupation); health- and treatment-related variables (disease burden, cardiovascular disease experience, treatment explanation satisfaction, treatment time and side Gefitinib order effects); and health locus of control variables (on three levels: internal, chance and powerful others). The average age of the study population was 64.2 years (S.D. ± 9.5), and the group consisted of slightly more men (51.1%) than women (48.9%). Compulsory school was the most commonly completed education level (40.0%). Approximately 40.6% of the group were in full-time or part-time work, while the remaining 59.4% were unemployed or

retired from the work market. The

distribution of demographics and key variables in the study population is shown in Table 1. In the whole group, 54.5% of patients were classified to have high adherence, and 45.5% were classified to have low adherence to their statin treatment. About one-fifth of the group reported a high disease burden (suffering from five or more diseases) and half of the group had between two and four diseases. Overall, 72.8% of the patients did not report any CVD experience, and therefore received their treatment as primary prevention, 27.2% of the group reported at least one CVD experience, so received their treatment as secondary prevention. The majority of the group did not report any side effects, NU7441 molecular weight but 11.9% did experience some side effects. The Mann–Whitney U test in Table 1 showed no significant difference on internal or chance between patients with low and high adherence, only small differences were seen on the MHLC index scales. Several of the associations outlined in the research framework (Fig. Thiamine-diphosphate kinase 1) were also significant in the correlation matrix (Table 2). The highest correlation to the adherence variables was seen with the perception of necessity of treatment. The indicator variables were tested for multicollinearity, and no variable had over 2.5 in VIF, which indicates that the risk for multicollinearity can be considered to be low. These imply acceptability of using

a structural equation model. A PLS estimation procedure was used to examine the hypothesized relationships (Fig. 2) between constructs depicted in the theoretical framework (Fig. 1). The SEM analysis showed a significant relationship between adherence and necessity of treatment (β = 0.15, p = 0.010), but not with concern ( Table 3). The explanatory variables were also tested directly against adherence, and it was found that side effects (β = −0.14, p = 0.006) had a significant effect on adherence. The analysis showed that education level (β = −0.10, p = 0.033), disease burden (β = 0.20, p < 0.001), CVD experience (β = 0.17, p < 0.001), satisfaction with treatment explanations made by a physician (β = 0.13, p = 0.008), treatment time (β = 0.14, p < 0.001) and powerful others in locus of control (β = 0.33, p < 0.

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