Table 1.

Models of least-squares and logistic regression analyses of the influence of African-American status on five indicators of prescription practices in the psychiatric emergency service¹

Independent variable	N of psychiatric medications		Receipt of antipsychotic agent		N doses of antipsychotic		N injections of antipsychotic		24-hour dosage of antipsychotic
	Beta	p	Odds ratio	p	Beta	p	Beta	p	Beta	p
African American	.99	<.005	1.27	.71	1.21	.02	.54	.04	862	<.001
African-American status by Art of Care Scale score	–.25	.65	.88	.89	–.56	.50	–.57	.18	–722	.05
R2 or percent correctly predicted	R2=.39		%=74		R2=.35		R2=.14		R2=22

¹The model controlled for medication indicators (presence of a psychotic disorder, severity of psychiatric disturbance [GAS score], dangerousness, psychiatric history, and whether; physical restraints were used) and service variables (hours spent in the emergency service, clinician's efforts to engage the patient in treatment, and whether optimum time was spent in the evaluation). Analyses used least-squares regression, except for the receipt of antipsychotic medication, for which logistic regression was used. N = 442 for number of psychiatric medications and receipt of antipsychotic agent; for other dependent variables, N = 169 (number of patients who received an antipsychotic agent).