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Table 4 Perceptions of health effects associated with cannabis use (N = 870)

From: Cannabis health knowledge and risk perceptions among Canadian youth and young adults

   Very unlikely Somewhat unlikely Neither likely nor unlikely Somewhat likely Very likely Do not know
Beliefs, others Likely someone may become addicted from smoking 14.7 (128) 16.0 (139) 17.0 (148) 27.6 (240) 16.6 (144) 7.9 (69)
  No risk Slight risk Moderate risk Great risk Do not know  
Risk of harming mental health 10.9 (95) 32.2 (280) 27.2 (237) 21.8 (190) 7.8 (68)  
  Not at all worried A little worried Moderately worried Very worried Do not know  
Beliefs, self Worry about damage to future health* 51.3 (137) 34.1 (91) 9.0 (24) 2.6 (7) 3.0 (8)  
  Not at all Yes, a little addicted Yes, very addicted Do not know   
Perceived addiction* 76.0 (203) 20.2 (54) 2.6 (7) 1.1 (3)   
  1. *Among past 3-month users (n = 267)