Table 2.

Demographics before and after propensity score matching with Cohort 1 buprenorphine-naloxone and Cohort 2 opioid use disorder controls.

	Before propensity score matching				After propensity score matching
Demographics	Cohort 1 (n = 62,041)	Cohort 2 (n = 159,926)	P-value	Std. Diff	Cohort 1 (n = 62,041)	Cohort 2 (n = 62,041)	P-value	Std. Diff
Mean age at index ± SD	39.5 ± 12.3	45.8 ± 16.5	<0.001	0.43	39.5 ± 12.3	39.5 ± 12.4	=0.80	<0.01
Female	27,979 (45.1%)	78,641 (49.2%)	<0.001	0.08	27,979 (45.1%)	27,975 (45.1%)	=0.98	<0.01
Male	34,057 (54.9%)	81,271 (50.8%)	<0.001	0.08	34,057 (54.9%)	34,064 (54.9%)	=0.97	<0.01
White	46,370 (74.7%)	110,815 (69.3%)	<0.001	0.12	46,370 (74.7%)	46,536 (75.0%)	=0.28	<0.01
AI/AN	564 (0.91%)	807 (0.51%)	<0.001	0.05	564 (0.91%)	412 (0.66%)	<0.001	0.03
NHPI	42 (0.07%)	140 (0.09%)	=0.14	0.01	42 (0.07%)	15 (0.02%)	<0.001	0.02
Unknown ethnicity	10,945 (17.6%)	49,014 (30.6%)	<0.001	0.31	10,945 (17.6%)	10,922 (17.6%)	=0.86	<0.01
Not Hispanic or Latino	47,161 (76.0%)	101,782 (63.6%)	<0.001	0.27	47,161 (76.0%)	47,249 (76.2%)	=0.56	<0.01
Hispanic or Latino	3,935 (6.34%)	9,130 (5.71%)	<0.001	0.03	3,935 (6.34%)	3,870 (6.24%)	=0.45	<0.01
Black	6,999 (11.3%)	22,711 (14.2%)	<0.001	0.09	6,999 (11.3%)	6,993 (11.3%)	=0.96	<0.01
Asian	193 (0.31%)	810 (0.51%)	<0.001	0.03	193 (0.31%)	169 (0.27%)	=0.21	<0.01
Unknown race	7,873 (12.7%)	24,643 (15.4%)	<0.001	0.08	7,873 (12.7%)	7,916 (12.8%)	=0.71	<0.01

OUD, opioid use disorder; AI/AN, American Indian or Alaskan Native; NHPI, Native Hawaiian or other Pacific Islander.