Table 1.

Interview response rates by electronic health record measures.

General Patient Characteristics		N	Response Rate %	Chi-square p-value	Adjusted† Odds Ratio (95% CI)
Age, years	45 to 54	573	51.7		REF
	55 to 64	866	58.7	30.89	1.30 (1.04, 1.62)
	65 to 74	551	67.9	p<0.0001	1.89 (1.45, 2.46)
	75 and older	499	59.9		1.29 (0.98, 1.71)
Sex	Female	1538	60.7	2.92	REF
	Male	951	57.2	p=0.09	0.93 (0.78, 1.10)
Race/ethnicity	White, non-Hispanic	2105	59.9		REF
	Hispanic or non-White	311	56.9	1.62	1.30 (1.04, 1.62)
	Unknown	73	54.8	p=0.45	0.92 (0.57, 1.48)
Charlson Score	0	1101	56.7		REF
	1	220	60.0		1.08 (0.80, 1.47)
	2	387	65.6	12.64	1.42 (1.11, 1.82)
	3 to 5	481	52.2	p=0.013	1.13 (0.89, 1.43)
	6 or more	300	56.0		0.82 (0.62, 1.09)
No show appointments in prior year	0	1681	59.6		REF
	1	487	60.6	1.25	1.05 (0.85, 1.30)
	2 or more	321	56.7	p=0.54	0.90 (0.70, 1.16)
Current Smoking	No	1951	60.9	9.60	REF
	Yes	538	53.5	p=0.002	0.80 (0.65, 0.98)
Specific Opioid Misuse Risk Factors
Substance Abuse Diagnosis	No	2172	59.7	0.99	REF
	Yes	317	58.8	p=0.32	0.96 (0.74, 1.24)
Mood/Anxiety disorder Diagnosis	No	1388	58.1	2.10	REF
	Yes	1101	60.9	p=0.15	1.21 (1.01, 1.45)
Hepatitis C/ cirrhosis Diagnosis	No	2338	59.8	2.70	REF
	Yes	151	53.0	p=0.10	0.80 (0.56, 1.13)
Excess days’ supply of opioids: prior 2 years	No	2273	59.2	0.31	REF
	Yes	216	61.1	p=0.58	1.12 (0.56, 1.32)
Opioids from 3+ doctors outside primary care clinic in prior year	No	2238	59.2	0.17	REF
	Yes	251	60.6	p=0.68	1.15 (0.87, 1.52)
Opioids from emergency department prescriber	No	2221	59.2	0.15	REF
	Yes	268	60.5	p=0.70	1.08 (0.82, 1.41)
Opioid morphine equivalent dose/day	less than 15mg	1218	59.1		REF
	15mg to < 50mg	931	60.4	0.91	1.08 (0.90, 1.29)
	50mg or more	327	57.5	p=0.64	0.96 (0.74, 1.24)
Sedative/hypnotic days’ supply (half-year)	None	1382	61.1		REF
	1 to 29 days	381	54.3	6.06	0.79 (0.62, 1.00)
	30 to 89 days	314	57.6	p=0.11	0.91 (0.70, 1.17)
	90 or more days	412	59.5		0.87 (0.69, 1.10)

^†Adjusted odds ratios are from a multivariable logistic regression model that predicted survey response using variables shown in the table.