Table 4.

 Number of transitions to psychosis in each group (and cumulative total) at each assessment occasion and maximum number available at each occasion (owing to variable follow-up design)

Group	Month of assessment
	1	2	3	4	5	6	9	12	15	18	21	24
Monitoring (cumulative total)	1	2 (3)	0 (3)	2 (5)	1 (6)	0 (6)	3 (9)	1 (10)	0 (10)	1 (11)	1 (12)	1 (13)
Cognitive therapy (cumulative total)	2	1 (3)	1 (4)	1 (5)	1 (6)	0 (6)	1 (7)	0 (7)	0 (7)	1 (8)	0 (8)	2 (10)
Maximum No	288	288	288	288	288	288	288	288	251	224	195	164