and clinical correlates independently associated with clozapine in the combined sample (n = 1,157).

Multiple logistic regression analysis with the non-clozapine group as the reference.
There was co-linearity between the use of FGA and non-clozapine SGAs, therefore use of non-clozapine SGA was not included in the multiple logistic regression analysis. CPZeq = chlorpromazine equivalents; EPS = extrapyramidal symptoms; FGA = first-generation antipsychotics; ACM = anticholinergic medication; BZD = benzodiazepine.