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. Author manuscript; available in PMC: 2016 May 3.
Published in final edited form as: Pain. 2015 Feb;156(2):335–340. doi: 10.1097/01.j.pain.0000460314.73358.ff

Table 2.

Patient-level prevalence of guideline adherence and potential misuse outcomes.

Patient adherence prevalence Total (N = 1546), n (%) Site 1 (n = 271), n (%) Site 2 (n = 186), n (%) Site 3 (n = 1089), n (%) P*
Opioid treatment agreement 679 (44) 122 (45) 91 (49) 466 (43) 0.27
Urine drug screen 861 (56) 65 (24) 68 (37) 728 (67) <0.0001
Early refills§ 555 (36) 105 (39) 63 (34) 387 (36) 0.51
*

χ2 test for categorical variables and analysis of variance for continuous variables across 3 sites.

Electronic health record documentation of an opioid treatment agreement ever.

Urine Drug Screen in the past 12 mo.

§

An opioid prescription written 7 to 25 d after the previous prescription for the same medication.