Objective
This study was performed to determine comorbidity between substance use disorders (SUDs) and personality disorders (PDs) as well as to evaluate the severity of SUDs.
Patients and methods
A total of 120 adult male inpatients participated in the study. They were admitted in the Addiction Management Unit at Assiut University Hospital within the period from the 1 of December 2016 till the end of November 2017. All patients met the , 5 ed. diagnostic criteria for SUD. The 100 healthy adult male patients volunteered to participate in the study were from the general population and matched with the patient group for age and socioeconomic status. They were relatives of other patients in the outpatient clinic in Assiut University Hospital rather than from the neuropsychiatric clinic. The patients and controls gave written consent to participate in the study after full explanation of the study procedures and were subjected to the mini-international neuropsychiatric interview to excluded psychiatric disorders. All patients were subjected to urine drug screening as well as to the following scales: Addiction Severity Index (ASI), Structured Interview for the Five-Factor Model (SIFFM), and Structured Clinical Interview II. The control group was subjected to urine drug screening as well as to SIFFM scale.
Results
Majority of patients had dependence of more than one (58%) substance with tramadol dependence in 30% of patients. The most common personality disorders that was noticed among the studied patients sample using Structured Clinical Interview II were antisocial, avoidant, and paranoid (17.5% each),while the most prevalent trait using SIFFM being neuroticism and conscientiousness. Antisocial personality was the most frequent with multiple substance addiction (20%), while avoidant and antisocial personality were the most frequent with tramadol. Also, there observed a positive correlation between ASI and neuroticism while negative correlation with conscientiousness. There was higher ASI with histrionic personality (mean score, 39), dependent (mean score, 33±1.11), followed by borderline (mean score, 22.5 ± 4.89).
Conclusion
The most prevalent PD was antisocial, avoidant, and paranoid. There are strong relationships between ASI and PDs.