Table 4 Mental illness and stimulant use disorder stratum specific unadjusted and adjusted Odds ratio estimates of OAT dispensation within two days of release among people with an opioid use disorder diagnosis who were released from provincial prisons between Jan 1 2015- Dec 29 2018 (N = 13,380 releases)

No mental illness

 No stimulant use disorder

0.66(0.58–0.76)

0.64(0.57–0.74)

 Stimulant use disorder

0.93(0.77–1.18)

0.89(0.70–1.13)

Mental illness

 No stimulant use disorder

Reference

Reference

 Stimulant use disorder

0.81(0.70–0.92)

0.73(0.64–0.84)

Sex

 Female

1.12(0.97–1.30)

1.16(0.99–1.35)

 Male

Reference

Reference

Age

  < 30

0.64(0.47–0.86)

0.63(0.47–0.86)

 30–39

0.75(0.56–1.01)

0.75(0.56–1.02)

 40–49

0.97(0.63–1.18)

0.90(0.66–1.24)

  >  = 50

Reference

Reference

Health Authority

 Fraser

Reference

Reference

 Interior

1.44(1.24–1.69)

1.31(1.12–1.54)

 Vancouver Island

1.70(1.45–2.00)

1.64(1.40–1.93)

 Northern

0.94(0.74–1.18)

0.87(0.69–1.10)

 Vancouver Coastal

1.10(0.95–1.27)

1.08(0.93–1.25)

 Unknown

0.31(0.17–0.58)

0.35(0.17–0.67)

Prior number of incarcerations (only back to 2015) at time of release(a)

 0

0.83(0.76–0.91)

1.00(0.91–1.11)

 1

0.83(0.75–0.92)

0.95(0.86–1.05)

 2 + 

Reference

Reference

Year of release

 2015

Reference

Reference

 2016

1.31(1.14–1.51)

1.31(1.13–1.53)

 2017

1.83(1.59–2.12)

1.86(1.59–2.16)

 2018

2.13(1.83–2.47)

2.15(1.82–2.52)