The Cancer Opioid Risk Score can help to identify a cancer patient at risk for persistent opioid use. The authors are frm the University of California.
Patient selection: cancer patient prescribed an opioid
Parameters:
(1) depression
(2) prior history of opioid use
(3) any chemotherapy
Parameter
Finding
Points
depression
no
0
yes
0.1094
prior opioid use
none (naive)
-0.7263
intermittent
0.5539
chronic user
3.2092
chemotherapy
no
0
yes
0.0777
score =
= SUM(points for all of the parameters) - 2.67
probability of persistent opioid use =
= 1 / (1 + EXP((-1) * (score))
Probability
Risk Group
<= 5%
low
5.01 to 24.99%
moderate
>= 25%
high
Performance:
• The area under the ROC curve is 0.869.
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