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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: J Addict Med. 2022 Mar-Apr;16(2):164–168. doi: 10.1097/ADM.0000000000000844

Table 1:

Background Characteristics and Injection Drug Use Behaviors and Practices by Subcutaneous Injection (Skin Pop).

SKIN POPPED?
Sample (n = 252) No (n = 108) Yes (n = 144) p = a
Age 37.9 (± 10.7) 38.6 (± 11.0) 37.4 (± 10.7) .381
Sex (Male) 147 (58.3%) 66 (66.1%) 81 (56.2%) .439
Race
 White 150 (59.5%) 58 (53.7%) 92 (63.9%)
 Black 52 (20.6%) 26 (24.1%) 26 (18.1%) .259
 Other 50 (19.8%) 24 (22.2%) 26 (18.1%)
Latinx (Yes) 40 (15.9%) 18 (16.7%) 22 (15.3%) .765
Yrs Education 11.6 (± 2.25) 11.3 (± 2.63) 11.8 (± 2.25) .145
HIV Positive (Yes) 33 (13.2%) 19 (17.6%) 14 (9.8%) .070
Ever HCV (Yes) 242 (96.8%) 103 (96.3%) 138 (97.2%) .683
Primary IDU Drug (Opioids) 227 (90.1%) 96 (88.9%) 131 (91.0%) .584
Age Initiated IDU 25.8 (± 9.6) 25.7 (± 10.4) 26.0 (± 9.0) .804
# SSTIs (Past Year) 1.54 (± 2.31) 0.96 (± 1.51) 1.98 (± 2.68) <.001
Intramuscular Injection (Yes) 43 (17.1%) 10 (9.3%) 33 (23.0%) .004
Knowledge of subcutaneous injection risk 133 (53.0%) 51 (47.25%) 82 (57.3%) .112
a

P-value for t-test for differences in means or Pearson χ2 – test of independence.