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Table 1 Characteristics of crack users in Central Brazil, by gender

From: Gender differences in patterns of drug use and sexual risky behaviour among crack cocaine users in Central Brazil

Variables Total Men Female p g
Sociodemographic characteristics (n = 919)
 Age (years), median (IQR)a 30.0 (12.0) 31.43 (8.9) 30.60 (8.4) 0.506
 Low educationb , n (%) 570 (62.0) 484 (61.8) 86 (63.2) 0.753
 Single marital status, n (%) 713 (77.6) 612 (78.3) 101 (74.3) 0.302
 Non-white race/ethnicity, n(%) 637 (69.3) 541 (69.1) 96 (70.6) 0.727
 History of homelessnessc, n (%) 161 (17.5) 133 (17.0) 28 (20.6) 0.308
Previous incarcerationd (n = 919); n (%) 458 (49.8) 415 (53.0) 43 (31.6) < 0.001
Pattern of crack/similar and psychoactive substances use (n = 919)
 Age at first illicit drug use, median (IQR)a 16 (6) 16 (5) 18 (9) 0.001
 Duration of crack/similar use (months), median (IQR)a 24.0 (52.0) 24.0 (52.0) 36.0 (50.7) 0.589
 Daily crack consumption, n (%) 551 (60.0) 455 (58.1) 96 (70.6) 0.006
 Sharing of pipec, n (%) 645 (70.2) 547 (70.0) 98 (72.0) 0.612
 Smoking mixed crack and tobaccoc, n (%) 377 (41.1) 334 (42.7) 43 (31.9) 0.018
 Smoking mixed crack and marijuanac, n (%) 397 (43.2) 350 (44.7) 47 (34.8) 0.032
 Alcoholc , n (%) 676 (73.6) 581 (74.2) 95 (69.9) 0.288
 Marijuanac, n (%) 586 (63.8) 516 (65.9) 70 (51.5) 0.001
 Intranasal cocainec, n (%) 503 (54.7) 442 (56.4) 61 (44.9) 0.012
 Injecting drugsd, n (%) 93 (10.1) 77 (9.8) 16 (11.9) 0.473
Sexual behaviours
 Homosexual orientation (n = 814), n (%) 98 (12.0) 82 (11.9) 16 (12.6) 0.833
 Sexual violenced (n = 914), n (%) 115 (12.6) 64 (8.2) 51 (38.1) < 0.001
 Exchanging sex for money and/or drugsc (n = 859), n (%) 177 (20.6) 122 (16.8) 55 (42.0) < 0.001
 Number of sexual partners (n = 500)c, median (IQR)a 3.0 (4.0) 3.0 (2.0) 4.0 (9.0) 0.011
 Any unprotected sexual intercourse with steady partnerc (n = 516), n (%) 431 (83.5) 346 (83.0) 85 (85.9) 0.487
 Any unprotected sexual intercourse with casual partnerc (n = 506), n (%) 301 (59.1) 259 (56.5) 42 (59.2) 0.951
 Any unprotected anal intercoursec (n = 471), n (%) 311 (66.0) 272 (64.9) 39 (75.0) 0.148
 STIe historyc (n = 903), n (%) 258 (28.6) 224 (29.1) 34 (25.6) 0.406
 Syphilis prevalence (+)f (n = 919), n (%) 109 (11.9) 72 (9.2) 37 (27.2) < 0.001
  1. aInterquartile range
  2. bDefined as elementary and middle schools (completed or not)
  3. cPrevious six months
  4. dLifetime
  5. eSexually transmitted infections
  6. fELISA positivity
  7. gPearson’s chi-squared (qualitative variables) or Wilcoxon–Mann–Whitney (quantitative variables)