Table 1.

Sample demographics of NEMESIS-2 study (Netherlands) and EDSP study (Germany)

	NEMESIS-2		EDSP		Total
	Mean	SD	Mean	SD	Mean	SD
Age at baseline	44.3	12.5	15.1	1.1	42.8	16.7
Sex	N a	%	N a	%	N a	%
Male	9143	44.7	2856	51.2	11 999	46.1
Female	11 312	55.3	2724	48.8	14 036	53.9
Total	20 455	100	5580	100	26 035	100
Baseline educational levela
High	7591	37.1	3076	55.1	10 667	41
Medium	6588	32.2	1548	27.7	8136	31.3
Low	6276	30.7	956	17.1	7232	27.8
Total	20 455	100	5580	100	26 035	100
T0–T3 Psychotic experiences
No	19 280	94.3	3865	80.6	23 145	91.7
Yes	1175	5.7	930	19.4	2105	8.3
Total	20 455	100	4795	100	25 250	100
T0–T3 Cannabis use
No	19 454	97.9	3802	81.3	23 256	94.8
Yes	412	2.1	873	18.7	1285	5.2
Total	19 866	100	4675	100	24 541	100
T0–T3 Other drug use
0	19 648	96.1	5188	93	24 836	95.4
1	807	3.9	392	7.0	1,199	4.6
Total	20 455	100	5580	100	26 035	100
T0–T3 Life event
No	10 711	52.4	2426	43.5	13 137	50.5
Yes	9744	47.6	3154	56.5	12 898	49.5
Total	20 455	100	5580	100	26 035	100
T0–T3 any 12-month diagnosis
No	17 784	86.9	4368	78.3	22 152	85.1
Yes	2671	13.1	1212	21.7	3883	14.9
Total	20 455	100	5580	100	26 035	100

Highest academic achievement: high = at least higher secondary; medium = lower secondary; low = no/primary.

EDSP, Early Developmental Stages of Psychopathology Study; NEMESIS-2, Netherlands Mental Health Survey and Incidence Study-2.

^aNumber of observations clustered within individuals (participants were interviewed 4 times over time).