Table 2.

Patient characteristics measured using electronic health records in full sample and in sample of survey respondents, unweighted and weighted using inverse probability of response weights to account for measured nonresponse bias.

General Patient Characteristics		Full Sample %	Respondents Unweighted %	Respondents Weighted %
Age, years	45 to 54	23.0	20.0	22.9
	55 to 64	34.8	34.4	34.7
	65 to 75	22.1	25.3	22.2
	75 and older	20.1	20.2	20.2
Sex	Female	61.8	63.2	61.9
	Male	38.2	36.8	38.1
Race/ethnicity	White non-Hispanic	84.6	85.3	84.5
	Other	12.5	12.0	12.6
	Unknown	2.9	2.7	2.9
Charlson Score	0	44.2	42.3	44.1
	1	8.8	8.9	8.9
	2	15.5	17.2	15.6
	3 to 5	19.3	20.2	19.4
	6 or more	12.1	11.4	12.1
No show appointments in prior year	0	67.5	67.7	67.5
	1	19.6	20.0	19.6
	2 or more	12.9	12.3	12.9
Current Smoking	No	78.4	80.5	78.5
	Yes	21.6	19.5	21.5
Specific Opioid Misuse Risk Factors
Substance Abuse Diagnosis	No	87.3	87.8	87.3
	Yes	12.7	12.2	12.7
Mood/Anxiety disorder Diagnosis	No	55.8	54.6	55.7
	Yes	44.2	45.4	44.3
Hepatitis C/ cirrhosis Diagnosis	No	93.9	94.6	93.9
	Yes	6.1	5.4	6.1
Excess days’ supply of opioids: prior 2 years	No	91.3	91.1	91.3
	Yes	8.7	8.9	8.7
Opioids from 3+ doctors outside primary care clinic in prior year	No	89.9	89.7	90.0
	Yes	10.1	10.3	10.0
Opioids from emergency department prescriber	No	89.2	89.0	89.2
	Yes	10.8	11.0	10.8
Opioid morphine equivalent dose/day	less than 15mg	49.5	49.2	49.4
	15mg to less than 50mg	37.4	38.1	37.5
	50mg or more	13.1	12.7	13.1
Sedative/hypnotic days’ supply (half-year)	None	55.5	57.1	55.5
	1 to 29 days	15.3	14.0	15.2
	30 to 89 days	12.6	12.3	12.7
	90 or more days	16.6	16.6	16.7