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. Author manuscript; available in PMC: 2010 Aug 19.
Published in final edited form as: Subst Use Misuse. 2010 Feb;45(3):354–367. doi: 10.3109/10826080903452447

Table 2.

Injection practices among 1158 Injection Drug Users (IDUs) in Chennai, India

Variable n (%)
Age at initiation of drug use
Median (IQR) 25 (20 – 30)
Injected in the prior 1 month
Yes 876 (75.7)
Drug injected in the prior 1 month
Heroin/ Brown Sugar 702 (80.1)
Buprenorphine (Tidigesic) 265 (30.3)
Pheniramine Maleate (Avil) 320 (36.5)
Benzodiazepines 84 (9.6)
Promethazine 40 (4.6)
Combinations of two or more of the above listed drugs 429 (49)
Injection/paraphernalia sharing in the prior 1 month
Used another persons syringe/needle 327 (37.3)
➢ Number of times [median (IQR)] 3 (2 – 8)
➢ Number of persons [median (IQR)] 3 (2 – 3)
Passed his/her needle/syringe to another 341 (38.9)
Passed his/her cotton filter to another 252 (28.8)
Shared paraphernalia with a known-HIV positive person 19 (2.17)
Needle acquisition in the prior one month
Pharmacy 777 (88.7)
Hospital Dispensary 5 (0.57)
Needle-exchange 6 (0.68)
Friend 42 (4.79)
Non-governmental organization 70 (7.99)
Storage of injection paraphernalia in the prior month
Buried in the ground 222 (25.3)
Syringe Locker (behind bricks in walls, etc) 264 (30.1)
Public Toilets 57 (6.51)
Dealer’s Place 7 (0.79)
Needle disposal in the prior one month
Garbage 686 (78.3)
Needle-exchange 29 (3.31)
Public Toilet 26 (2.97)
Public Space (street, park, etc) 40 (4.56)
Someone else disposed of the needles 84 (9.59)
Always disabled and disposed needle in a manner to minimize needle-stick injuries 112 (12.8)
Needle injection venues in the prior 1 month
Home 242 (27.6)
Dealers Place 130 (14.8)
Public Toilets 264 (30.1)
Public Parks 158 (18)
Friend’s residence 55 (6.3)
Injection networks in the prior 1 month
Injected alone 548 (62.6)
Injected with well-known people 361 (41.2)
Injected with not well-known or unknown people 4 (0.46)
Needle cleaning in the prior one month
Always cleaned before use 534 (61)
Always cleaned after use 512 (58.5)
Ever used bleach to clean 0
Ever cleaned with alcohol 5 (0.58)
Ever cleaned with tap water 479 (54.7)
Ever cleaned with soap and water 247 (28.2)
Ever cleaned with distilled water 23 (2.62)

Questions were asked only of the 876 who reported injecting in the prior one month