Table 1.
Characteristics of the final matched study population with incident PIM use and no PIM use
| Characteristic | Non-PIM | PIM | Total |
|---|---|---|---|
| Patients [N (%)] | 17,848 (50.00) | 17,848 (50.00) | 35,696 |
| Sex [N (%)] | |||
| Female | 11,030 (50.56) | 10,785 (49.44) | 21,815 |
| Male | 6818 (49.12) | 7063 (50.88) | 13,881 |
| Age [N (%)] | |||
| 65–69 years | 3937 (49.80) | 3969 (50.20) | 7906 |
| 70–74 years | 5050 (49.75) | 5100 (50.25) | 10,150 |
| 75–79 years | 3857 (51.65) | 3611 (48.35) | 7468 |
| 80–84 years | 2752 (48.13 | 2966 (51.87) | 5718 |
| 85–89 years | 1503 (51.86) | 1395 (48.14) | 2898 |
| 90–94 years | 531 (48.67) | 560 (51.33) | 1091 |
| 95+ years | 218 (46.88) | 247 (53.12) | 465 |
| Charlson comorbidity index score [N (%)] | |||
| 0 | 9675 (50.65) | 9428 (49.35) | 19,103 |
| 1 | 3580 (50.33) | 3533 (49.67) | 7113 |
| 2 | 2051 (49.53) | 2090 (50.47) | 4141 |
| 3 | 1113 (48.97) | 1160 (51.03) | 2273 |
| 4 | 990 (47.55) | 1092 (52.45) | 2082 |
| 5+ | 439 (44.61) | 545 (55.39) | 984 |
| Adverse drug event: hospitalization [N (%)] | 127 (39.44) | 195 (60.56) | 322 |
| OR for hospitalization (95 % CI) | Reference | 1.54 (1.23–1.93) | |
CI confidence interval, OR odds ratio, PIM potentially inappropriate medication