Table 4.

Incident psychotic experiences as a function of cannabis use at the preceding interview over the periods T0–T1, T1–T2, and T2–T3 in a combined sample of NEMESIS-2 study and EDSP study

	Prediction from T0 to T1					Prediction from T1 to T2					Prediction from T2 to T3
	T1 psychotic experiences					T2 psychotic experiences					T3 psychotic experiences
T0 cannabis use		No	Yes	Total	T1 cannabis use		No	Yes	Total	T2 cannabis use		No	Yes	Total
No	N a	5141	166	5307	No	N a	4797	236	5033	No	N a	4163	118	4281
	%	96.9	3.1	100.0		%	95.3	4.7	100.0		%	97.2	2.8	100.0
Yes	N a	238	13	251	Yes	N a	101	36	137	Yes	N a	139	21	160
	%	94.8	5.2	100.0		%	73.7	26.3	100.0		%	86.9	13.1	100.0
Total	N a	5379	179	5558	Total	N a	4898	272	5170	Total	N a	4302	139	4441
	%	96.8	3.2	100.0		%	94.7	5.3	100.0		%	96.9	3.1	100.0

^aNumber of participants.