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Table 1 Univariate analysis of factors potentially associated with ever providing injection initiation assistance among persons who inject drugs in San Diego, CA (n = 354)

From: History of medication-assisted treatment and its association with initiating others into injection drug use in San Diego, CA

Variable Did not ever initiate others into injection (n = 219) Ever initiated others into injection (n = 135) P-valuea
Age
  ≤ 30 9 (31.0%) 20 (69.0%) 0.001
 31–50 104 (62.3%) 63 (37.7%)
  ≥ 51 106 (67.1%) 52 (32.9%)
Gender, n = 352b
 Female 64 (65.3%) 34 (34.7%) 0.460
 Transgender 2 (40.0%) 3 (60.0%)
 Male 153 (61.5%) 96 (38.6%)
Marital Status
 Married 28 (68.3%) 13 (31.7%) 0.398
 Other 191 (61.0%) 122 (39.0%)
Ever been in prison
 No 103 (60.2%) 68 (39.8%) 0.585
 Yes 116 (63.4%) 67 (36.6%)
Years since first injection, n = 353b
  ≤ 5 years 10 (50.0%) 10 (50.0%) 0.504
 6–10 years 30 (61.2%) 19 (38.8%)
  > 10 years 179 (63.0%) 105 (37.0%)
Ever injected heroin
 No 31 (62.0%) 19 (38.0%) >0.999
 Yes 188 (61.8%) 116 (38.2%)
Ever injected cocaine
 No 56 (62.9%) 33 (37.1%) 0.900
 Yes 163 (61.5%) 102 (38.5%)
Ever injected meth
 No 29 (76.3%) 9 (23.7%) 0.054
 Yes 190 (60.1%) 126 (39.9%)
Ever enrolled in MAT
 No 128 (59.0%) 89 (41.0%) 0.178
 Yes 91 (66.4%) 46 (33.6%)
  1. aFisher’s exact test; bChange in sample size due to different number of observations available for each variable; MAT Medication-assisted Treatment