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Table 2 Risk-related behaviours, HIV-related knowledge and history of HIV and HCV testing (NSP n = 987; PDI n = 1820)

From: Hidden populations: risk behaviours in drug-using populations in the Republic of Georgia through subsequent peer-driven interventions

  NSP PDI p value
Drug-use behaviours, including drugs injected
Age of first injectiona (mean) 20.0 19.5 0.00
Injections per daya,b (mean) 1.4 2.1 0.23
Injection daysa,b (mean) 17.7 13.8 0.00
Injection group sizea,b (mean) 3.9 3.5 0.02
Drugs used in the past 30 daysd
Heroin/sirets 58.3 54.9 0.00
Fentanyl 1.2 2.0 0.00
Street methadone 9.9 13.2 0.00
Methadone diverted from opioid substitute therapy 5.5 7.1 0.00
Street buprenorphine 30.0 36.5 0.00
Buprenorphine diverted from opioid substitute therapy 34.2 20.0 0.00
Vint (homemade amphetamines) 15.5 12.7 0.00
Ephedrine 32.3 23.5 0.00
Amphetamines 5.5 2.3 0.00
Antihistamines in mixture 7.7 2.7 0.00
Overdose in the last 30 days 3.6 6.4 0.00
Drug- and sex-related risky behaviours (behaviours over the past 6 months)
Shared equipment 33.4 52.0 0.00
Shared syringe 15.3 33.6 0.00
Used a syringe after someone 4.6 26.3 0.00
Someone used syringe after 6.4 25.4 0.00
Shared syringe with someone HIV positive 0.5 2.9 0.00
Always used new syringe 77.1 68.1 -
Shared instruments 35.2 53.2 0.00
Exchange sex for drugs 1.9 1.6 0.65
Exchange drugs for sex 3.1 1.8 0.05
Exchanged sex for money 0.7 0.9 0.82
Exchanged money for sex 6.4 6.9 0.63
Sex with someone HIV positive 0.0 0.6 0.05
Past number of blood tests for HIV?a 3.1 0.6 0.00
Never tested for HIV 0.6 67.0 0.00
HIV knowledge (correct answers)
HIV risk is reduced if you have only one partner 98.9 98.8 0.61
HIV risk is reduced if a condom is always used 99.5 98.7 0.13
A person with HIV can look healthy 91.2 86.8 0.00
HIV can be caught by sharing food or water with an infected person 98.2 98.1 0.94
HIV can be transmitted by mosquito bite 93.1 91.0 0.00
HIV and HCV testing
Ever tested for HCV 99.5 34.2 0.00
HIV positive on point-of-care testing at interview 0.8 0.4 0.14
  1. Statistical significance was classified as a P value < 0.05 and are in bold
  2. Chi-square test was applied for categorical data, and independent t test for continuous data. Only percentages given due to overlap between groups
  3. NB: drug types were not included if both groups had less than 5% use
  4. aUnless otherwise specified
  5. bIn the last 30 days
  6. cAs a percentage proportion by recruitment group (NSP vs PDI)
  7. dUse of multiple substances gives cumulative prevalence of greater than 100%