Fig. 1

Overview of comorbidities: adjustments and direction of adjustment. Sources: Schizophrenia and alcohol use disorder [80]; other drug use disorders [80]; suicidal ideation [87]. Bipolar disorder and alcohol use disorder [79]; other drug use disorders [79]; suicidal ideation [88]. Depression and alcohol use disorder [81]; other drug use disorders [81]; suicidal ideation [88]. Positive predictive values for schizophrenia and alcohol use disorder (0.55); other drug use disorders (0.45); suicidal intention (0.79); [86, 89, 90]. Bipolar disorder and alcohol use disorder (0.35); other drug use disorders (0.35); suicidal intention (0.86): [90, 91]. Depression and alcohol use disorder (0.35); other drug use disorders (0.35); suicidal intention (0.86): [90, 91]