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Table 1 Study population socio-demographics and overdose experience

From: Psychosocial and contextual correlates of opioid overdose risk among drug users in St. Petersburg, Russia

Variable N (%) Mean (SD)
Site   
State Narcological Hospital 30 (50)  
Biomedical Center 30 (50)  
Age in years [mean (SD)] 30.8 (7.5)  
Male 37 (61.7)  
Age at first opioid use [mean (SD)] 20.3 (5.8)  
Years from first opioid use to first opioid overdose [mean (SD)] 4.5 (6.0)  
Living situation   
Alone 13 (21.7)  
Parents 26 (43.3)  
Spouse 13 (21.7)  
Sex partner 2 (3.3)  
Relatives 5 (8.3)  
With friends 1 (1.7)  
Highest level of education   
Did not complete middle school 11 (18.3)  
Completed middle school 16 (26.7)  
Special middle (PTU/tech school) 18 (30.0)  
Institute//university 15 (25.0)  
Currently employed 16 (26.7)  
District of inhabitance   
Central 12 (20.3)  
South 15 (25.4)  
North 17 (28.8)  
East 11 (18.6)  
Suburbs 6 (6.8)  
Addiction Severity Index   
Legal composite   0.13 (0.17)
Family composite   0.38 (0.21)
Psychiatric composite   0.39 (0.24)
Drug composite   0.14 (0.10)
Employment composite   0.75 (0.26)
Medical, items:   
Days bothered by medical problems*   10.53 (10.35)
How troubled by medical problems**   2.13 (1.29)
Alcohol, items:   
Days used alcohol*   4.61 (7.71)
Days used alcohol to intoxication*   1.71 (3.48)
Days experiencing problems with alcohol*   3.10 (7.22)
How troubled by alcohol problems**   0.77 (1.17)
Importance of getting treatment for alcohol problems**   0.97 (1.46)
SCL-90 Mean score (SD)   
Global Severity Index   1.24 (0.69)
Obsessive-compulsive   1.79 (1.09)
Interpersonal sensitivity   1.45 (0.87)
Depression   1.25 (0.94)
Anxiety   1.35 (0.95)
Hostility   1.39 (0.94)
Phobic anxiety   0.82 (0.85)
Paranoid ideation   1.13 (0.88)
Psychoticism   0.70 (0.76)
Somatization   1.31 (0.82)
Ever injected 59 (98.3)  
Past 30 days, injected 29 (49.2)  
Heroin 29 (100)  
Opioids 4 (13.8)  
Amphetamines 2 (6.9)  
Other 3 (10.3)  
Inject alone all or most of the time 17 (29.3)  
  1. *in the past 30 days
  2. **(0 = not at all 4 = extremely)