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Table 3 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)

From: Stimulant use disorder diagnosis and opioid agonist treatment dispensation following release from prison: a cohort study

 

Unadjusted

OR (95% CIs)

Adjusted

OR (95% CIs)

Stimulant use disorder

 Yes

0.99(0.89–1.12)

0.84(0.74–0.95)

 No

Reference

Reference

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)

Mental Illness diagnosis prior to release

 Yes

1.31(1.17–1.46)

1.35(1.20–1.52)

 No

Reference

Reference

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

 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)

  1. aDistribution of prior incarcerations Mean: 2.86 (SD: 3.99), Median = 2.00, [IQR = 0.00,4.00] Range:0–49) Unknown health authority = No fixed address. In adjusted analysis, the estimate for each covariate is adjusted for all other covariates in the model. So, the estimate for Stimulant use disorder in the adjusted column, is after adjusting for sex, age, health authority, mental illness, prior number of incarcerations, and year of release
  2. Estimates from GEE models with exchangeable correlation structure- accounting for repeated observations arising from the same person