Table 4

Prescription-Adjusted£ Relative Risk of Abusing each Compound

Compound

hydrocodone

IR oxycodone

IR fentanyl

IR hydromorphone

IR morphine

IR oxymorphone

ER oxycodone

ER fentanyl

methadone

ER morphine

ER oxymorphone


hydrocodone

1.000

--

--

--

--

--

--

--

--

--

--


IR oxycodone

2.494¥

1.000

--

--

--

--

--

--

--

--

--


IR fentanyl

5.154¥

2.066¥

1.000

--

--

--

--

--

--

--

--


IR hydromorphone

5.828¥

2.336¥

1.131

1.000

--

--

--

--

--

--

--


IR morphine

9.976¥

3.999¥

1.936¥

1.712¥

1.000

--

--

--

--

--

--


IR oxymorphone

6.781¥

2.718¥

1.316

1.164

0.680τ

1.000

--

--

--

--

--


ER oxycodone

14.520¥

5.821¥

2.817¥

2.492¥

1.456¥

2.141¥

1.000

--

--

--

--


ER fentanyl

2.846¥

1.411τ

0.552£

0.488¥

0.285¥

0.420¥

0.196¥

1.000

--

--

--


methadone

18.645¥

7.475¥

3.617¥

3.199¥

1.869¥

2.750¥

1.284¥

6.551¥

1.000

--

--


ER morphine

5.051¥

2.025¥

0.980

0.876τ

0.506¥

0.745

0.348¥

1.775¥

0.271¥

1.000

--


ER oxymorphone

8.010¥

3.211¥

1.554τ

1.374£

0.803τ

1.181

0.552¥

2.814¥

0.430¥

1.586¥

1.000


£ per 100,000 Prescriptions

¥p < .0001

£p < .001

τp < .05

Butler et al. Harm Reduction Journal 2011 8:29   doi:10.1186/1477-7517-8-29

Open Data