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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Am J Psychiatry. 2016 Mar 4;173(6):588–599. doi: 10.1176/appi.ajp.2015.15070907

Table 4.

12-Month Cannabis Use Disorder and Mean SF-12 Norm-Based Mental Disability Scores

Mean Norm-Based Scores (SE) Mental Component Summary
SF-12 Mental Components
Mental Health Social Functioning Role/Emotional Functioning
No Cannabis Use Disorder 51.9 (0.09) 50.7 (0.10) 48.5 (0.11) 51.0 (0.08)
Any Cannabis Use Disorder 46.7 (0.46)a 46.8 (0.52) a 44.3 (0.55) a 45.3 (0.50) a
 Mild Disorder 48.2 (0.54) a 48.0 (0.67) a 45.4 (0.66) a 46.9 (0.63) a
 Moderate Disorder 46.1 (0.95) a 46.9 (0.91) a 44.3 (0.88) a 44.5 (0.92) a
 Severe Disorder 43.7 (0.98) a 43.6 (1.15) a 41.5 (1.12) a 42.2 (0.95) a
Number of Cannabis Use Disorder Criteria
 0 51.9 (0.09) 50.8 (0.09) 48.6 (0.12) 51.1 (0.08)
 1 48.8 (0.51) a 48.3 (0.47) a 47.2 (0.45) b 47.7 (0.49) a
 2 48.2 (0.72) a 48.0 (0.82) b 45.5 (0.80) a 46.9 (0.80) a
 3 48.3 (0.89) a 48.0 (0.95) a 45.1 (0.93) a 46.9 (0.87) a
 4 46.4 (1.06) a 47.0 (1.11) b 44.7 (1.18) b 44.8 (1.03) a
 5 45.7 (1.61) a 46.7 (1.58) b 43.7 (1.40) a 44.0 (1.61) a
 6 44.6 (2.23) b 44.1 (2.42) b 43.8 (2.04) c 44.9 (1.66) a
 7 46.5 (1.31) a 44.3 (2.06) b 43.3 (2.23) c 44.5 (1.80) b
 8 43.0 (2.26) a 46.4 (2.04) c 40.7 (1.80) a 41.4 (1.76) a
 9 38.7 (2.22) a 40.5 (3.09) b 39.9 (1.82) a 37.3 (2.21) a
 10 41.7 (2.44) a 41.0 (5.30) 33.9 (3.47) a 36.9 (2.77) a
 11 44.9 (3.65) c 38.9 (5.10) b 37.0 (5.53) b 37.4 (5.55) b
a

Significantly different (p<.001) from score for individuals with no cannabis use disorder/zero cannabis use disorder criteria, after adjusting for sociodemographic characteristics.

b

Significantly different (p<.01) from score for individuals with no cannabis use disorder/zero cannabis use disorder criteria,, after adjusting for sociodemographic characteristics.

c

Significantly different (p<.05) from score for individuals with no cannabis use disorder/zero cannabis use disorder criteria,, after adjusting for sociodemographic characteristics.