Table 6.

Multivariate logistic regression model for atypical type of antipsychotic.

Variables	Coefficient B	Standard error	p-value	Odds ratio	95% CI for odds ratio
					Lower	Upper
Constant	–1.27	0.26	0.001	0.28	N/A	N/A
Route	2.64	0.20	0.001	14.08	9.51	20.83
Polypharmacy administered	–0.89	0.24	0.001	0.41	0.26	0.66
Previous number of antipsychotics	–0.55	0.18	0.003	0.58	0.40	0.83
Anticholinergic use	–1.42	0.23	0.001	0.24	0.16	0.38
Total dose	0.02	0.003	0.001	1.02	1.02	1.03

n= 996.

-2 Log likelihood = 798.936.

Reference categories predictors; route = intramuscular; polypharmacy administered = no; previous number of antipsychotics = ≤1; anticholinergic use = no.

CI, confidence interval; N/A, not applicable.