For psychiatric disorders, there were significant differences in some psychiatric comorbidities among groups. Overall, MDs and M/HDs both had a higher prevalence of current and lifetime psychotic disorders (both independent and substance-induced). No significant differences were found between these two groups and schizophrenia was the main disorder in independent psychotic disorders. HDs were more likely to have current and lifetime substance-induced mood disorders. There was no statistically significant differences in independent mood disorders, any anxiety disorders, somatoform disorders and eating disorders among the three groups respectively. (Table 2).Table 2Comparison of current and lifetime prevalence of DSM-IV-TR Axis I mental disorders between groupsDiagnoses, n (%)CurrentLifetimeMDs (n = 346)HDs (n = 698)M/HDs (n = 247)MDs vs.HDsMDs vs. M/HDsHDs vs. M/HDsMDs (n = 346)HDs (n = 698)M/HDs (n = 247)MDs vs.HDsMDs vs. M/HDsHDs vs. M/HDsWaldPWaldPWaldPWaldPWaldPWaldPPsychotic Independent Psychotic Disorder24 (6.94)5 (0.72)20 (8.10)21.61 <0.001 16.270.59524.43 <0.001 31 (8.96)6 (0.86)28 (11.34)29.72 <0.001 0.910.34234.71 <0.001 Schizophrenia13 (3.76)3 (0.43)13 (5.26)19 (5.49)4 (0.57)17 (6.88) Schizophreniform1 (0.29)001 (0.29)01 (0.40) Schizoaffective1 (0.29)1 (0.14)1 (0.40)2 (0.58)1 (0.14)1 (0.40) Other Psychotic Disorders8 (2.31)1 (0.14)6 (2.43)9 (2.60)1 (0.14)9 (3.64) Substance-induced118 (34.10)4 (0.57)78 (31.58)75.23 <0.001
