Table 3.

Results of multinomial logistic regression model (reference groups: opioid fulfillments in both PDMP and Surescripts datasets).

Variable Categories			PDMP Only			Surescripts Only
	RRR	P value	95% CI		RRR	P value	95% CI
Perioperative time period
Preoperative	1.00	--	--	--	1.00	--	--	--
Perioperative	3.28	<0.01	2.87	3.74	0.32	<0.01	0.17	0.59
Early Postoperative	0.88	0.09	0.76	1.02	0.65	0.18	0.34	1.23
Late Postoperative	1.13	0.19	0.95	1.34	0.93	0.85	0.46	1.88
Age	0.99	0.01	0.99	0.98	0.16	0.96	1.01	0.98
Female	1.15	0.10	0.97	1.14	0.71	0.58	2.25	1.14
Race/Ethnicity	1.00
White	1.00		--	--	1.00	--	--	--
Black	0.58	<0.01	0.40	0.83	1.55	0.51	0.42	5.66
Hispanic	0.84	0.57	0.47	1.51	0.22	0.21	0.02	2.29
Other	1.89	0.04	1.03	3.46	14.73	<0.01	3.45	62.93
Unknown	1.08	0.69	0.74	1.56	0.22	0.06	0.05	1.04
Patient Insurance
Blue Cross Blue Shield	1.00	--	--	--	1.00	--	--	--
Other commercial	1.21	0.06	0.99	1.49	0.71	0.42	0.31	1.62
Medicare/Medicaid	1.34	0.02	1.04	1.74	1.02	0.97	0.41	2.57
Other	8.46	<0.01	4.37	16.39	0.81	0.81	0.15	4.42
Border County	1.12	0.52	0.80	1.56	3.89	<0.01	1.70	8.88
Inpatient	0.58	<0.01	0.47	0.72	1.48	0.29	0.72	3.03
Charlson index score	1.06	<0.01	1.02	1.10	1.02	0.76	0.89	1.17
Period of Service
Jul 16 – Dec 16	1.00	--	--	--	1.00	--	--	--
Jan 17 - Jun 17	0.57	<0.01	0.44	0.74	0.19	<0.01	0.08	0.46
Jul 17 - Dec 17	0.85	0.24	0.65	1.10	0.07	<0.01	0.02	0.25
Jan 18 - Jun 18	0.80	0.10	0.62	1.03	0.21	<0.01	0.08	0.58
Jul 18 - Feb 19	0.61	<0.01	0.47	0.80	0.02	<0.01	<0.01	0.10
Neighborhood Affluence	0.18	<0.01	0.09	0.38	0.02	0.03	<0.01	0.64
Neighborhood Disadvantage	0.21	0.13	0.03	1.58	1.26	0.94	<0.01	685.89
Neighborhood Ethnic and Immigrant Concentration	0.02	<0.01	<0.01	0.15	0.03	0.39	<0.01	91.48

Note. CI = Confidence Interval; PDMP = Prescription Drug Monitoring Program; RRR = Relative Risk Ratio