Table 2.

Reasons for stopping treatment

		Amisulpride	Placebo	p value
Stage 1		Groups A and B (n=61)	Group C (n=31)	..
	No symptoms	3 (5%)	0	0·21
	Treatment ineffective	4 (7%)	8 (26%)	0·010
	Apparent side-effects	9 (15%)	2 (6%)	0·25
	Patient decision	2 (3%)	1 (3%)	0·99
	Other health problem	2 (3%)	2 (6%)	0·48
	Total	20 (33%)	13 (42%)	0·39
Stage 2		Group A (n=19)	Group B (n=22)	..
	No symptoms	0	0
	Treatment ineffective	2 (11%)	9 (4%)	0·031
	Apparent side-effects	2 (11%)	1 (5%)	0·47
	Patient decision	1 (5%)	1 (5%)	0·92
	Other health problem	2 (11%)	0	0·12
	Total	7 (37%)	11 (50%)	0·40

Differences were assessed by χ² test with associated p values (two-sided).