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Table 1 Baseline demographics of study participants stratified by mmt use (n = 794)

From: Association of patterns of methadone use with antiretroviral therapy discontinuation: a prospective cohort study

  Methadone Status  
Variable Total (%) (n = 794) Discontinued MMT (%) (n = 18) Current MMT (%) (n = 327) MMT Naive (%) (n = 449)
Gender     
 Male 494 (62.2) 9 (50.0) 166 (50.8) 319 (71.1)
 Female 300 (37.8) 9 (50.0) 161 (49.2) 130 (28.9)
Age (years)     
 Median (IQR) 41.1 (34.3–46.6) 37.8 (30.0–42.9) 40.6 (34.2–46.2) 41.6 (34.6–47.2)
Ethnicity     
 Caucasian 451 (56.8) 12 (66.7) 205 (62.7) 234 (52.1)
 Other 343 (43.2) 6 (33.3) 122 (37.3) 215 (47.9)
Homelessnessa     
 Yes 166 (20.9) 2 (11.1) 68 (20.8) 96 (21.4)
 No 625 (78.8) 16 (88.9) 258 (78.9) 351 (78.2)
Sex work involvementa     
 Yes 125 (15.7) 3 (16.7) 60 (18.4) 62 (13.8)
 No 667 (84.0) 15 (83.3) 266 (81.4) 386 (86.0)
Daily heroin injectiona     
 Yes 131 (16.5) 8 (44.4) 53 (16.2) 70 (15.6)
 No 662 (83.4) 10 (55.6) 274 (83.8) 378 (84.2)
Daily cocaine injectiona     
 Yes 148 (18.6) 5 (27.8) 57 (17.4) 86 (19.2)
 No 640 (80.6) 13 (72.2) 268 (82.0) 359 (80.0)
Daily crack cocaine smokinga  
 Yes 208 (26.2) 4 (22.2) 104 (31.8) 100 (22.3)
 No 585 (73.7) 14 (77.8) 222 (67.9) 349 (77.7)
Protease inhibitor initial regimena  
 Yes 325 (40.9) 11 (61.1) 143 (43.7) 171 (38.1)
 No 469 (59.1) 7 (38.9) 184 (56.3) 278 (61.9)
CD4 count (cells/mm3)     
 Median (IQR) 300 (190–440) 255 (190–310) 320 (180–470) 295 (190–425)
Viral load (log10 copies/mL)  
 Median (IQR) 3.7 (1.7–4.7) 4.5 (4.0–4.8) 3.5 (1.7–4.7) 3.8 (1.7–4.8)
Physician HIV experienceb  
 Median (IQR) 60 (14–161) 133 (34–203) 71 (19–185) 52 (11–139)
  1. aRefers to behaviors in the previous six months. b Refers to number of total HIV patients physician has treated prior to initial visit with participant. IQR = inter-quartile range. Percentages may not sum up to 100 % due to missing data and/or rounding error