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Table 3 Event-level characteristics at most recent drug injection equipment sharing event (N = 198)

From: Age and sharing of needle injection equipment in a cohort of Massachusetts injection drug users: an observational study

Event-level characteristic Younger than 25 (n = 52) n (%) 25 or older (n = 146) n (%) P-value
Had Own Drugs 26 (50.0) 109 (74.7) 0.001
Type of Drug Injected    0.50
 Heroin 42 (80.8) 110 (75.3)  
 Cocaine 4 (7.7) 7 (4.8)  
 Heroin and Cocaine 6 (11.5) 28 (19.2)  
 Other 0 (0) 1 (0.7)  
Injection Setting    0.20
 Shooting Gallery 2 (3.9) 7 (4.8)  
 Home/Friend’s Home 21 (41.2) 80 (54.8)  
 Public Place 28 (54.9) 59 (40.4)  
Injection Partner    0.22
 Sexual Partner 22 (42.3) 40 (27.4)  
 Friends 19 (36.5) 74 (50.7)  
 Stranger(s) 2 (3.9) 7 (4.8)  
 Alone 9 (17.3) 25 (17.1)  
Where Obtained Needles    0.36
 Needle Exchange 25 (49.0) 87 (60.0)  
 Injection Partner(s) 7 (13.7) 22 (16.2)  
 Pharmacy 18 (35.3) 35 (34.1)  
 Found 1 (2.0) 1 (0.7)  
Withdrawal Symptoms before Injection 40 (76.9) 111 (76.0) 0.90
  1. Missing observations: Setting=1; Where Obtained Needles=2.
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