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Table 1 Demographic and clinical characteristics of patients with- and without continued cannabis use at one year follow-up

From: Continued cannabis use at one year follow up is associated with elevated mood and lower global functioning in bipolar I disorder

  No continued cannabis use Continued cannabis use
  N = 56 N = 6
  N Mean SD N Mean SD p
Age (years) 56 32.3 10.0 6 30.5 9.7 .691
IDS total score 53* 11.2 10.0 6 18.5 11.9 .198
YMRS total score 56 2.3 4.0 6 7.3 5.5 .076
PANSS positive total score 56 8.8 2.6 6 9.7 2.6 .439
GAF-F 56 65.3 16.0 6 49.0 16.1 .056
  N %   N %   P
Females 36 64.3   1 16.7   .035
Current use of antipsychotic or mood stabilizing medication 42 79.2   4 66.7   .605
  1. *Missing data.
  2. IDS = Inventory of depression Scale; YMRS = Young Mania Rating Scale; PANSS-P = Positive and Negative Syndrome Scale-Psychotic; GAF-F = Global assessment of functioning.