Table 4 Multivariate logistic regression for variables significantly associated with prescribing antipsychotic combination

Smoker

0.181

0.661

1.199 (0.534-2.692)

Duration of psychiatric illness > 10 years

−0.435-

0.327

0.647 (0.271-1.545)

Number of psychiatric hospitalization ≥ 2

0.614

0.229

1.849 (0.679-5.034)

Use of depot antipsychotic agents

1.270

0.002

3.560 (1.572-8.061)

Use of anticholinergic agents

1.336

0.005

3.804 (1.511-9.578)

Total CPZeq

0.010

<0.001

1.010 (1.007-1.013)