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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: Drug Alcohol Depend. 2020 Apr 25;212:108005. doi: 10.1016/j.drugalcdep.2020.108005

Table 2.

Distribution of participants and responses of the eight types of substances at each time point among 1107 people who use illicit drugs in Vancouver, British Columbia, Canada.

Frequency
Time point Total Heroin Illicit prescription opioid Cocaine Crack cocaine Crystal methamphetamine Cannabis Daily alcohol Benzodiazepines
Years before OAT
−5.0 218 218 218 218 218 218 218 218 218
−4.5 247 246 246 246 247 246 247 247 247
−4.0 284 284 284 284 284 284 284 282 284
−3.5 342 341 341 341 341 341 341 341 342
−3.0 388 388 388 388 388 388 388 388 388
−2.5 454 454 454 453 454 454 453 454 454
−2.0 529 529 529 529 529 529 529 528 529
−1.5 653 653 650 652 652 650 653 651 653
−1.0 814 811 810 811 813 810 813 812 814
−0.5 495 495 494 495 495 495 495 493 495
Years after OAT
0.0 1107 1105 1106 1106 1107 1106 1106 1105 1107
0.5 488 488 487 488 488 487 488 485 488
1.0 903 900 899 899 902 899 903 898 903
1.5 839 836 836 836 839 836 839 837 839
2.0 791 788 788 788 791 789 791 788 791
2.5 750 750 750 750 750 750 750 746 750
3.0 706 704 704 703 706 704 706 701 706
3.5 659 659 659 659 659 659 659 654 659
4.0 624 622 622 621 624 621 623 624 624
4.5 609 608 608 608 609 608 609 606 609
5.0 546 542 543 543 545 543 545 545 546

OAT opioid agonist therapy.