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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Psychol Addict Behav. 2016 Oct 27;30(7):743–754. doi: 10.1037/adb0000210

Table 2b.

Posttraumatic stress disorder (PTSD) by major depressive disorder (MDD) by cannabis use frequency

Frequent Use
Past-Year Use
Lifetime Use
Totals
No MDD MDD No MDD MDD No MDD MDD




n (%) n (%) n (%) n (%) n (%) n (%) n
PTSD 9 (23.1) 12 (57.1) 2 (3.8) 3 (42.9) 10 (6.1) 5 (27.8) 41
No PTSD 30 (76.9) 9 (42.9) 51 (96.2) 4 (57.1) 153 (93.9) 13 (72.2) 260
Total 39 (100) 21 (100) 53 (100) 7 (100) 163 (100) 18 (100) 301