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Table 2 Associations between cannabis use and affective outcomes

From: Cannabis use and depression: a longitudinal study of a national cohort of Swedish conscripts

  No. exposed No. cases HR Crude HR adjusted*
BIPOLAR DISORDER/AFFECTIVE PSYCHOSIS     
Never used cannabis 39 978 335 1 1
Ever used cannabis 5 109 45 1.1 (0.7-1.4) 1.1 (0.7-1.7)
>50 times 855 5 0.8 (0.3-1.8) 0.3 (0.1-2.2)
UNIPOLAR DISORDER     
Never used cannabis 39 978 655 1 1
Ever used cannabis 5 109 111 1.3 (1.1-1.6) 1.0 (0.7-1.2)
>50 times 855 24 1.8 (1.2-2.7) 0.9 (0.5-1.6)
  1. * Adjustments for: prior personality disorders at conscription, IQ, disturbed behavior in childhood, social adjustment, risky use of alcohol, smoking, early adulthood socioeconomic position, use of other drugs, brought up in a city. The category “Ever used cannabis” includes all individuals who reported cannabis use, including those who reported “>50 times”.