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. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: J Addict Med. 2017 Nov-Dec;11(6):461–467. doi: 10.1097/ADM.0000000000000346

Table 3.

SSTI by Each Indicator Included in the 7-item BIRSI.

Total (N =143) SSTI χ2 (p = )

No (n = 50) Yes (n = 93)
Not Cleaned Skin
 No 10 (7.0%) 6 (12.0%) 4 (4.3%) 2.96 (.085)
 Yes 133 (93.0%) 44 (88.0%) 89 (95.7%)
Not Washed Hands
 No 15 (10.5%) 8 (16.0%) 7 (7.5%) 2.49 (.115)
 Ye 128 (89.5%) 42 (84.0%) 86 (92.5%)
Injected Under Skin
 No 59 (41.3%) 31 (62.0%) 28 (30.1%) 13.64 (<.001)
 Yes 84 (58.7%) 19 (38.0%) 65 (69.9%)
Injected Into Muscle
 No 122 (85.3%) 45 (90.0%) 77 (82.8%) 1.35 (.246)
 Yes 21 (14.7%) 5 (10.0%) 16 (17.2%)
Used Uncleaned Needles
 No 19 (13.3%) 7 (14.0%) 12 (12.9%) 0.03 (.854)
 Yes 124 (86.7%) 43 (86.0%) 81 (87.1%)
Injected Cocaine/Speedballs
 No 60 (42.0%) 25 (50.0%) 35 (37.6%) 2.04 (.153)
 Yes 83 (58.0%) 25 (50.0%) 58 (62.4%)
Visited Shooting Gallery
 No 101 (70.6%) 40 (80.0%) 61 (65.6%) 3.25 (.071)
 Yes 42 (29.4%) 10 (20.0%) 32 (34.4%)