Table 1.
Characteristics of study population and comparison between people with and without PIMs
| Characteristics of study sample | Total | PIM(s) | No PIM | Simple OR (95% CI) | Multiple OR (95% CI) |
|---|---|---|---|---|---|
| Cases, n | 428 | 175 | 253 | ||
| Gender, n (%) | |||||
| Female | 270 (63.1) | 113 (64.6) | 157 (62.1) | 1.114 (0.747-1.663) | 1.116 (0.720–1.730) |
| Male | 158 (36.9) | 62 (35.4) | 96 (37.9) | Ref | |
| Age (years), mean ± SD (range) | 83.2 ± 6.6 (65–99) | 83.0 ± 6.8 | 83.3 ± 6.4 | 0.993 (0.964–1.022) | 0.995 (0.964–1.028) |
| Number of medications at admission, mean ± SD (range) | 7.8 ± 3.5 (0–20) | 9.3 ± 3.1 | 6.7 ± 3.4 | 1.281 (1.197–1.370) | 1.281 (1.197–1.370) |
| MMSE (0–30), mean ± SD (range) | 19.8 ± 4.6 (7–29) | 19.7 ± 4.3 | 19.9 ± 4.8 | 0.990 (0.923–1.063) | - |
| Type of accommodation, n (%) | |||||
| Nursing home | 124 (29.0) | 59 (33.7) | 65 (25.7) | 1.471 (0.965–2.243) | - |
| Living at home | 304 (71.0) | 116 (66.3) | 188 (74.3) | Ref | |
| Geographic location, n (%) | |||||
| Skellefteå | 107 (25.0) | 50 (28.6) | 57 (22.5) | 1.375 (0.885–2.138) | - |
| Umeå | 321 (75.0) | 125 (71.4) | 196 (77.5) | Ref | |
The multiple analyses include sex, age and significant variables from the simple model (number of medications at admission)
CI confidence interval, MMSE Mini-Mental Stage Examination, OR odds ratio, PIM(s) potentially inappropriate medication(s), SD standard deviation