Table 4 Variables associated with polypharmacy
Variable | Antipsychotic | Antidepressant | Mood Stabiliser | |||
|---|---|---|---|---|---|---|
Crude OR (95% CI) | a Adjusted OR (95% CI) | Crude OR (95% CI) | Adjusted OR (95% CI) | Crude OR (95% CI) | Adjusted OR (95% CI) | |
Age | 1.0* (0.9,1.0) | 1.0 (1.0,1.0) | 1.0 (1.0,1.1) | 1.0* (1.0,1.1) | 1.0 (1.0,1.0) | 1.0 (1.0,1.0) |
Gender Reference = Male | 0.5* (0.3,1.0) | 0.5* (0.2,1.0) | 3.0* (1.1,8.2) | 2.5 (0.9,7.3) | 1.3 (0.5,3.1) | 1.7 (0.6,4.6) |
Geographic location Reference = Metropolitan | 0.9 (0.5,1.6) | 0.8 (0.4,1.7) | 1.3 (0.6,3.0) | 1.6 (0.6,3.9) | 1.7 (0.7,3.9) | 1.3 (0.5,3.3) |
Mental illness Reference = 1 condition | 1.5 (0.8,2.8) | 1.4 (0.7,3.1) | 1.6 (0.6,4.6) | 2.2 (0.7,6.7) | 0.4* (0.2,0.9) | 0.6 (0.2,1.6) |
Admission (last 6 months) Reference = Yes | 1.3 (0.6,2.6) | 1.0 (0.4,2.4) | 1.7 (0.7,4.1) | 1.9 (0.7,5.1) | 0.7 (0.3,2.2) | 0.7 (0.2,2.3) |
Prescriber Reference = GP only Psychiatrist only bMultiple prescribers | 1.0 (1.0,1.0) 5.3** (2.3,12.0) 2.8* (1.2,6.2) | 1.0 (1.0,1.0) 6.2** (2.5,15.1) 3.0* (1.2,7.3) | 1.0 (1.0,1.0) 2.1 (0.7,6.5) 1.9 (0.7,4.9) | 1.0 (1.0,1.0) 2.3 (0.7,7.7) 2.0 (0.7,5.8) | 1.0 (1.0,1.0) 2.1 (0.7,5.8) 0.6 (0.2,1.8) | 1.0 (1.0,1.0) 2.08 (0.68,6.36) 0.57 (0.16,1.97) |