Limited psychological and social effects of lifetime cannabis use frequency: Evidence from a 30-year community study of 4,078 twins.

Stephanie M ZellersJordan AlexanderJarrod M EllingsonJonathan D SchaeferRobin P CorleyWilliam IaconoJohn K HewittChristian J HopferMatt K McGueScott Vrieze

Published in: Journal of psychopathology and clinical science (2023)

The cotwin control results suggest that more frequent cannabis use causes small increases in cannabis use disorder symptoms, approximately 1.3 symptoms when going from a once-a-year use to daily use. For other outcomes, our results are more consistent with familial confounding, at least in this community population of twins. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Keyphrases

mental health
healthcare
sleep quality
physical activity
early onset
depressive symptoms
emergency department
metabolic syndrome
adverse drug
type diabetes
preterm birth