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Table 2 Drug use behaviors among participants at the Miami IDEA syringe exchange

From: Baseline differences in characteristics and risk behaviors among people who inject drugs by syringe exchange program modality: an analysis of the Miami IDEA syringe exchange

Characteristics Sample total n (%) Fixed site n (%) Mobile van unit n (%) p value
Total 718 (100.0) 591 (82.3) 127 (17.7)  
Age at first drug injection
 Mean ± standard deviation 24.65 ± 8.80 24.78 ± 8.85 23.70 ± 8.44 0.302
Drugs injected, past month1
 Heroin 563 (78.4) 487 (82.4) 76 (59.8) 0.181
 Cocaine 187 (26.0) 153 (25.9) 34 (26.8)
 Speedball (heroin and cocaine) 127 (17.7) 110 (18.6) 17 (13.4)
 Methamphetamine 73 (10.2) 68 (11.5) 5 (3.9)
 Fentanyl/carfentanil 71 (9.9) 60 (10.2) 11 (8.7)
 Crack 59 (8.2) 47 (8.0) 12 (9.4)
 Prescription painkillers/opioids 57 (7.9) 52 (8.8) 5 (3.9)
 Other 24 (3.3) 19 (3.2) 5 (3.9)
Prescription opioid use prior to injection drug use
 Yes 351 (62.0) 306 (64.3) 45 (50.0) 0.010
Location most often inject, past month
 Private home 303 (49.2) 272 (51.9) 31 (33.7) < 0.001
 Street, park, or parking lot 250 (40.6) 200 (38.2) 50 (54.3)
 Public building/restroom 48 (7.8) 43 (8.2) 5 (5.4)
 Other 15 (2.4) 9 (1.7) 6 (6.5)
Reuse needle/injection equipment when injecting, past month
 None of the time 48 (7.7) 36 (6.8) 12 (13.6) 0.003
 Some of the time 118 (19.0) 98 (18.4) 20 (22.7)
 Most of the time 135 (21.8) 109 (20.5) 26 (29.5)
 All of the time 319 (51.5) 289 (54.3) 30 (34.1)
Shared needle/injection equipment when injecting, past month
 None of the time 411 (63.1) 357 (63.5) 54 (60.7) 0.608
 Some of the time 131 (20.1) 111 (19.8) 20 (22.5)
 Most of the time 52 (8.0) 47 (8.4) 5 (5.6)
 All of the time 57 (8.8) 47 (8.4) 10 (11.2)
Used alcohol swab when injecting, past month
 None of the time 117 (54.9) 55 (44.0) 62 (70.5) 0.002
 Some of the time 46 (21.6) 33 (26.4) 13 (14.8)
 Most of the time 21 (9.9) 16 (12.8) 5 (5.7)
 All of the time 29 (13.6) 21 (16.8) 8 (9.1)
  1. 1Totals may exceed 100% as participants were allowed to select multiple answers for this question