Bastiaan Sallevelt

334 CHAPTER 4.2 Figure 4. Top 10 START recommendations and corresponding agreement by patient and attending physician after discussion with PT. START E3 consist of recommendations for both calcium and/or vitamin D. START E2 consist of recommendations for calcium, vitamin D and/or bisphosphonates (i.e. Ca/Vit D/Bisph in the figure). Determinants of agreement Potential determinants of agreement were investigated on a patient level (N=139). Multivariate linear regression revealed three patient-related factors significantly associated with higher mean agreement (with STOPP/START recommendations taken together) i.e. female gender (+17.1% [3.7;30.4]), ≥1 falls in the past year (+15.0% [1.5;28.5]) and moderately diminished renal function defined as eGFR 30-50 ml/ min/1.73m2 (+18.0% [2.0;34.0]). None of the investigated setting-related factors (ward type, admission type, length of stay) was associated with lower/higher agreement. All determinants included in the univariate and multivariate analyses are displayed in Table 2. For the individual STOPP and START recommendations (N=371), potential determinants of agreement were investigated as well. No difference was found between STOPP and START recommendations and no significant relationship was found between the number of recommendations discussed (range 1-7) and subsequent agreement. All individual STOPP and START recommendations were categorised into subgroups according to the medication class involved and their occurrence. This resulted in 4 subgroups: 1) cardiovascular & antithrombotic agents (N=83;22.4%), 2) drugs for acid related disorders (N=61;16.4%), psychotropic drugs including benzodiazepines/Zdrugs (N=59;15.9%), 3) osteoporosis agents (vitamin D, calcium and bisphosphonates;

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