Table 3. Anticholinergic use at 30 days from AP initiation.

Variable	Mean ± standard deviation		P valuee
	On AC (n=28)	Not on AC (n=124)
Age	14.5 ± 2.3	14.5 ± 2.4	0.99
Sex (% Male)	68%	45%	0.03
Starting antipsychotic dosea	551 ± 436	384 ± 378	0.045
Total number of medications at antipsychotic initiationb	4.5 ± 2.3	3.5 ± 1.8	0.02
Total number of Axis I diagnosesc	2.2 ± 0.7	1.8 ± 0.8	0.02
Total number of diagnosesd	3.4 ± 1.3	3 ± 1.4	0.16

AC: Anticholinergic

^aDose in chlorpromazine equivalents

^bTotal number of scheduled medications documented in the medical record

^cChart documented psychiatric diagnoses categorized in the Diagnostic and Statistics Manual for Psychiatric Disorders Text Revision

^dTotal number of medical and psychiatric diagnoses documented in the most recent (relative to antipsychotic initiation) primary care and psychiatry notes of treating physicians

^eMann-Whitney U Test