Cannabis use and subclinical positive psychotic experiences in early adolescence:findings from a Dutch survey

AIMS: To investigate the association between early cannabis use and subclinical psychotic experiences, distinguishing between five levels of use: never used, discontinued use (life-time users who did not use in the preceding year), experimental use, regular use and heavy use. DESIGN: Cross-sectional observational study. SETTING: Dutch Health Behaviour in School-aged Children (HBSC) study, 2005 wave. PARTICIPANTS: A total of 4552 secondary school children aged 12-16 years. MEASUREMENTS: Cannabis use, Community Assessment of Psychic Experiences (CAPE) positive scale, confounding factors: age, ge... Mehr ...