Table 1.

Unadjusted and adjusted odds ratios between sociodemographic and behavioral characteristics and rheumatoid arthritis (RA).

Covariates	Bivariate				Multivariate
	Odds Ratio	95% confidence interval		p-value	Adjusted Odds Ratio	95% confidence interval		p-value
Sex
Male	1				1
Female	1.55	1.43	1.69	<0.0001	1.84	1.67	2.02	<0.0001
Ages 60 + years
Male	1				1
Female	1.91	1.71	2.13	<0.0001	1.98	1.74	2.25	<0.0001
White*	1				1
Black*	1.87	1.64	2.13	<0.0001	1.68	1.45	1.95	<0.0001
Hispanic	1.16	1.01	1.32	0.0350	0.99	0.85	1.16	0.9205
Ages 50–59 years
Male	1				1
Female	1.55	1.28	1.87	<0.0001	1.59	1.29	1.95	<0.0001
White*	1				1
Black*	1.45	1.16	1.81	0.0011	1.33	1.05	1.69	0.0193
Hispanic	0.93	0.73	1.18	0.5434	0.83	0.64	1.07	0.1535
Ages 20–49 years
Male	1				1
Female	1.85	1.53	2.24	<0.0001	1.74	1.43	2.12	<0.0001
White*	1				1
Black*	0.99	0.80	1.22	0.9094	0.85	0.68	1.06	0.1516
Hispanic	0.62	0.49	0.77	<0.0001	0.51	0.40	0.64	<0.0001
Race/Ethnicity
White*	1				1
Black*	1.36	1.24	1.50	<0.0001	0.85	0.68	1.07	0.1576
Hispanic	0.83	0.75	0.92	0.0003	0.51	0.40	0.64	<0.0001
Household economic status
300% + of poverty line	0.80	0.70	0.92	0.0020	0.86	0.74	1.00	0.0442
200% to 299% of poverty line	1				1
< 200% of poverty line	1.44	1.27	1.64	<0.0001	1.57	1.37	1.80	<0.0001
Smoking history
No	1				1
Yes	1.56	1.44	1.69	<0.0001	1.52	1.38	1.68	<0.0001
Body mass index
Healthy or underweight	1				1
Overweight	1.19	1.06	1.34	0.0037	1.13	0.99	1.28	0.0687
Obese	1.90	1.71	2.12	<0.0001	1.89	1.68	2.13	<0.0001

*Non-Hispanic White and non-Hispanic Black.