Table 1.

Chronic opioid therapy (COT) patient characteristics based on the year prior to each patient's index COT quarter.

	All COT Patients		Group Practice COT Patients		Contracted Physician COT Patients
	N	Percent	N	Percent	N	Percent
Total	22,205	--	16,653	--	5,552	--
Western Washington	17,203	77.5 %	14,709	88.3 %	2,494	44.9 %
Female	13,858	62.4 %	10,482	62.9 %	3,376	60.8 %
Age 18-39	3,133	14.1 %	2,384	14.3 %	749	13.5 %
40-49	4,488	20.2 %	3,131	18.8 %	1,357	24.4 %
50-59	6,467	29.1 %	4,757	28.6 %	1,710	30.8 %
60-69	3,953	17.8 %	3,031	18.2 %	922	16.6 %
70-79	2,171	9.8 %	1,740	10.5 %	431	7.8 %
80 or older	1,933	9.0 %	1,610	9.7 %	383	6.9 %
Current tobacco use	3,438	15.5 %	2,752	16.5 %	686	12.4 %
Mental disorder diagnosis	8,587	38.7 %	6,570	39.5 %	2,017	36.3 %
Opioid abuse/dependence	332	1.5 %	273	1.6 %	59	1.1 %
Non-opioid drug abuse/dependence	560	2.5 %	467	2.8 %	93	1.7 %
Alcohol abuse/dependence	872	3.9 %	723	4.3 %	149	2.7 %