Table 2

Associations between cannabis use and affective outcomes
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)

* 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”.

Manrique-Garcia et al.

Manrique-Garcia et al. BMC Psychiatry 2012 12:112   doi:10.1186/1471-244X-12-112

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