Table 6.

Percentage of chronic patients on multiple antipsychotics (AP) drugs, depot AP and concurrent antiparkinsonian (APS) medication.

	1996 (n = 634)	1999 (n = 846)
*Patients given	(%)	(%)
No AP	2.3	2.2
One AP	42.2	53.0
Two APs	16.2	36.5
Three APs	16.2	8.1
Four APs	1.7	0.1
**Depot AP given	48.1	43.0
***AP given concurrently with APs	67.8	61.8

^*Mann–Whitney U-test: Z = −4.948, P = 0.000 (95% CI = 0.14, 0.3)

^**chi-square test: χ² = 3.378, P = 0. 052

^***chi-square test: χ² = 5.558, P = 0.018.