Table 5.
Multiple logistic regression analysis for the associations of variables with the prescription of PIMs.
| Variables | OR* (95% CI) | P value | |
|---|---|---|---|
| Age** | 65–69 | Ref | |
| 70–74 | 0.96 (0.94–0.99) | <.001 | |
| 75–79 | 1.00 (0.98–1.03) | .855 | |
| ≥80 | 1.04 (1.02–1.07) | <.001 | |
| Gender | Female | Ref | <.001 |
| Male | 1.27 (1.25–1.29) | ||
| Type of insurance*** | Health insurance | Ref | <.001 |
| Medical Aid | 1.71 (1.67–1.74) | ||
| Chronic disease**** | Hypertension (Yes) | 1.03 (1.01–1.05) | <.001 |
| Diabetes Mellitus (Yes) | 1.14 (1.12–1.16) | ||
| Heart disease (Yes) | 1.33 (1.31–1.69) | ||
| Cerebrovascular disease (Yes) | 1.37 (1.34–1.39) | ||
| Neoplasm (Yes) | 1.43 (1.40–1.46) | ||
| Liver disease (Yes) | 1.11 (1.09–1.13) | ||
| Mental and behavior disorder (Yes) | 5.59 (5.82–6.16) | ||
| Respiratory Tuberculosis (Yes) | 1.10 (1.04–1.17) | ||
| Nervous Disease (Yes) | 2.63 (2.57–2.70) | ||
| Thyroid gland Disease (Yes) | 1.09 (1.07–1.11) | ||
| Chronic Renal Disease (Yes) | 1.16 (1.13–1.10) | ||
| Arthropathy (Yes) | 0.92 (0.90–0.94) | ||
*
The dependent variable was divided into 2 groups: ≥5 PIMs vs <5 PIMs in 1 claim.
**
As the patients’ age increased during the study period, it was defined as the age at which the last claim data was processed.
***
The type of insurance was classified as medical aid if patients received medical aid at least once.
***
*Patients who had been diagnosed with a chronic disease at least once were categorized as those with chronic diseases
PIMs = potentially inappropriate medications.