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Table 3 Substance use disorders and other substance use assessments in patients with and without comorbid personality disorders

From: In-depth study of personality disorders in first-admission patients with substance use disorders

  PD full criteria PD including subthreshold diagnoses
  Yes No Sign. Yes No Sign.
  n= 28 n =33 n= 35 n =26
Substance use disorders
AUD only (%) 29 61 * 34 62  
DUD only (%) 11 15   9 19  
AUD and DUD (%) 61 24 ** 57 19 **
Sedatives (%) 29 15   29 12  
Cannabis (%) 64 30 * 57 31  
Stimulants (%) 29 6 * 26 4 *
Cocaine (%) 21 9   20 8  
Opioids (%) 7 0   6 0  
Cigarettes per day (mean number) 12.6 6.7 ** 11.0 7.3  
SUD characteristics
Age first SUD (mean years) 18.5 27.9 *** 19.8 28.6 **
Total duration of SUD (mean years) 8.4 5.0 * 7.2 5.7  
Number of SUDs (mean) 2.4 1.5 ** 2.3 1.4 **
AUDIT sum score (mean) 13.3 15.1   13.3 15.5  
DUDIT sum score (mean) 14.2 8.8 * 13.3 8.5  
  1. Notes. All diagnoses are lifetime diagnoses. * p < 0.05; ** p < 0.01; *** p ≤ 0.001.
  2. PD personality disorder, Subthreshold lacking one criterion for the diagnosis, SUD substance use disorder, AUD alcohol use disorder, DUD drug use disorder, AUDIT Alcohol Use Disorders Identification Test, DUDIT Drug Use Disorders Identification Test, Sign. statistically significant differences between patients with and without PD.