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Table 3 Item totals, median and range, median and range for each level of opioid agonist treatment (OAT) use (None: n = 148, Partial: n = 32, Complete: n = 75), unadjusted (IRR) and adjusted incidence rate ratios (AIRR) comparing primary healthcare-based medication dispensation across different levels of post-release OAT use

From: Is use of opioid agonist treatment associated with broader primary healthcare use among men with recent injecting drug use histories following release from prison? A prospective cohort study

Outcome

Total counta

Median (range)

IRR (95%CI)

p-value

AIRRb (95%CI)

p-value

6. Total dispensations

1188

1 (0–49)

    

  OAT: None

548

1 (0–36)

REF

 

REF

 

  OAT: Partial

155

2 (0–28)

1.35 (0.88–2.07)

0.176

1.88 (1.19–2.98)

0.007

  OAT: Complete

485

3 (0–49)

1.83 (1.34–2.50)

 < 0.001

2.40 (1.71–3.37)

 < 0.001

7. ATC: Nervous system

894

1 (0–49)

    

  OAT: None

338

0 (0–29)

REF

 

REF

 

  OAT: Partial

135

1.5 (0–27)

1.90 (1.22–2.95)

0.004

2.59 (1.61–4.16)

 < 0.001

  OAT: Complete

421

3 (0–49)

2.61 (1.89–3.60)

 < 0.001

3.54 (2.48–5.03)

 < 0.001

8. ATC: Anti-infectives

103

0 (0–15)

    

  OAT: None

79

0 (0–15)

REF

 

REF

 

  OAT: Partial

9

0 (0–3)

0.57 (0.25–1.27)

0.168

0.78 (0.33–1.83)

0.568

  OAT: Complete

15

0 (0–2)

0.41 (0.22–0.76)

0.005

0.51 (0.26–1.00)

0.05

9. ATC: Alimentary & metabolicc

64

0 (0–11)

    

  OAT: None

41

0 (0–11)

REF

 

–

 

  OAT: Partial

2

0 (0–1)

0.22 (0.05–0.99)

0.048

–

–

  OAT: Complete

21

0 (0–4)

1.10 (0.60–2.01)

0.755

–

–

10. ATC: Other

127

0 (0–10)

    

  OAT: None

90

0 (0–10)

REF

 

REF

 

  OAT: Partial

9

0 (0–4)

0.45 (0.20–1.01)

0.052

0.70 (0.29–1.70)

0.431

  OAT: Complete

28

0 (0–8)

0.61 (0.36–1.03)

0.062

0.72 (0.39–1.33)

0.289

11. Opioids

125

0 (0–17)

    

  OAT: None

80

0 (0–17)

REF

 

REF

 

  OAT: Partial

10

0 (0–4)

0.58 (0.27–1.26)

0.167

0.89 (0.36–2.21)

0.797

  OAT: Complete

35

0 (0–10)

0.94 (0.57–1.54)

0.801

1.08 (0.57–2.06)

0.808

12. Benzodiazepines

353

0 (0–45)

    

  OAT: None

74

0 (0–25)

REF

 

REF

 

  OAT: Partial

68

0 (0–27)

4.29 (2.55–7.22)

 < 0.001

4.99 (2.81–8.85)

 < 0.001

  OAT: Complete

211

0 (0–45)

6.39 (4.30–9.50)

 < 0.001

8.30 (5.28–13.04)

 < 0.001

13. Gabapentinoidsd

114

0 (0–14)

    

  OAT: None

28

0 (0–9)

REF

 

REF

 

  OAT: Partial

33

0 (0–14)

6.76 (3.55–12.87)

 < 0.001

6.78 (3.34–13.77)

 < 0.001

  OAT: Complete

53

0 (0–11)

3.87 (2.24–6.70)

 < 0.001

4.34 (2.37–7.94)

 < 0.001

  1. aBetween date of index release and three-month follow-up; bAdjusted for age at baseline, Aboriginal or Torres Strait Islander, self-reported health status, main drug injected in the preceding 30 days, GHQ-12 score, area of residence, ever diagnosed with a mental illness, ever diagnosed with a chronic health condition, times moved since last interview, accommodation stability and current support worker; cAn adjusted model was not estimated for associations between OAT and Alimentary & Metabolic dispensations due to an insufficient count among people reporting partial OAT; dAdjusted model does not include covariate of main drug injected in the preceding 30 days due to an insufficient cell count in one level of this covariate