Table 1 Characteristics of the discovery sample and the replication sample.

From: Childhood maltreatment mediates the effect of the genetic background on psychosis risk in young adults

Variable

Discovery sample UCC (N = 1262)

FMI

Replication sample IMAGEN (N = 1740)

FMI

Male gender (%)

606 (48%)

 

813 (47%)

 

Age, mean (SD) in year

20.5 (2.5)

 

19.4 (1.5)

 

CTQ score, mean (SD)

31.9 (8.4)

0.23

40.2 (6.5)

0.12

Cannabis exposure ≥10 lifetime (%)

404 (32%)

0

361 (21%)

0.063

Tobacco daily consumption for at least 30 days in the last year (%)

227 (30%)

0.003

594 (34%)

0.024

CAPE-42 score, mean (SD)

67.3 (13.9)

0

60.6 (11.4)

0

  1. FMI fraction of missing information, SD standard deviation, CTQ Childhood Trauma Questionnaire, CAPE The Community Assessment of Psychic Experiences.