TABLE 3.
Factor Loadings for Final Exploratory Factor Analysis
| Item Description* | Factor 1 Loading | Factor 2 Loading | Factor 3 Loading | Factor 4 Loading | Factor 5 Loading |
|---|---|---|---|---|---|
| Medication Concerns | |||||
| 9. Having to take medicines disrupts my life (BMQ-C) | 65 | −1 | 3 | 0 | 0 |
| 10. I sometimes worry about long-term effects of my medicines (BMQ-C) | 83 | 5 | −6 | 7 | −5 |
| 11. I sometimes worry about becoming too dependent on my medicines (BMQ-C) | 85 | 9 | −11 | 1 | −1 |
| 13. I feel that I am taking a large number of medicines (PATD) | 58 | −3 | 31 | −3 | −22 |
| 15R.† I am comfortable with the number of medicines that I am taking (PATD) | 39 | −18 | 20 | 5 | 4 |
| 20. I believe one or more of my medicines is giving me side effects, unwanted reactions, or other problems(PATD) | 51 | −8 | 11 | −6 | 12 |
| Provider Knowledge | |||||
| 28. My PCP knows a lot about all of my medicines | −5 | 87 | 3 | 0 | 1 |
| 29. My PCP knows about all of my medical problems | 1 | 86 | −2 | 2 | −1 |
| 30. My PCP keeps up with new medical information | −4 | 75 | 6 | −4 | −1 |
| Interest in Stopping Medicines | |||||
| 17. If my doctor said it was possible, I would be willing to stop one or more of my regular medicines (PATD) | 0 | 9 | 62 | −1 | −3 |
| 18. I would like to reduce the number of medicines that I am taking (PATD) | 3 | −4 | 95 | 4 | −9 |
| 22. I am taking one or more medicines that I would like to stop | 23 | 7 | 47 | 2 | 27 |
| Patient Involvement in Decision-Making | |||||
| 31. When there are different options available, patients should have a say in which medicine they receive | 13 | 9 | 12 | 53 | −4 |
| 32R. I should go along with my PCP’s advice even if I disagree with it (API) | 3 | −6 | −10 | 71 | 2 |
| 33R. The important medical decisions should be made by the doctor, not by the patient (API) | −14 | −4 | 4 | 63 | 6 |
| Unimportance of Medicines | |||||
| 19. I feel that I may be taking one or more medicines that I no longer need (PATD) | 13 | 0 | 38 | −3 | 45 |
| 21. I am taking one or more medicines that are not important for my health | 23 | −1 | −1 | −2 | 64 |
| 27. Medicines do more harm than good (BMQ-H) | 25 | 0 | −5 | 2 | 44 |
| 12R. My health in the future will depend on my medicines (BMQ-N) | −28 | 0 | −5 | 4 | 48 |
| 14. Some of my medicines are difficult to take (eg, the pill is hard to swallow or the inhaler is hard to use) | 36 | −9 | −2 | −8 | 12 |
| 16. One (or more) of my medicines is more important for my health than my other medicines | 26 | −12 | 9 | −1 | −9 |
*
Information within parenthesis indicates question source. If none, then item created de novo.
†
“R” indicates that item was reverse coded.
API indicates Autonomy Preference Index; BMQ, Beliefs about Medications Questionnaire-Concerns (C), Harm (H), Necessity (N); PATD, patient attitudes toward deprescribing; PCP, primary care provider.