Table 2.

Linear Regression Analysis of Disease Activity Among Participants in the Black Women’s Experiences Living With Lupus Study (n = 427), 2015–2017

Variable	Model 1		Model 2		Model 3
	b	95% CI	b	95% CI	b	95% CI
Racial discrimination	1.92	1.18, 2.66	2.20	1.52, 2.89	2.00	1.32, 2.68
Age	−0.03	−0.10, 0.05	−0.02	−0.10, 0.05	−0.03	−0.11, 0.04
Years since diagnosis	−0.03	−0.11, 0.06	−0.04	−0.11, 0.04	−0.03	−0.11, 0.05
Relationship statusa
Romantic relationship	−0.05	−3.23, 3.13	−0.48	−3.37, 2.41	−1.18	−4.04, 1.67
Divorced/separated, widowed	1.10	−0.85, 3.05	0.07	−1.76, 1.90	−0.26	−2.08, 1.55
Single, never married	−0.28	−2.13, 1.56	−1.02	−2.74, 0.69	−1.21	−2.90, 0.48
Educationb
High school			−1.30	−4.14, 1.54	−0.60	−3.40, 2.21
Some college			−0.96	−3.54, 1.62	−0.54	−3.10, 2.02
Bachelor’s degree or higher			−3.64	−6.54, −0.75	−2.89	−5.80, 0.02
Income-to-poverty ratio			−1.02	−1.54, −0.51	−0.96	−1.46, −0.45
Work statusc
Half-time			−0.31	−2.77, 2.16	−0.56	−3.00, 1.88
Out of labor force			1.41	−2.15, 4.97	1.61	−1.92, 5.14
Unable to work			3.59	1.58, 5.60	3.06	1.03, 5.09
Insurance statusd
Public			−0.42	−2.38, 1.54	−0.40	−2.34, 1.53
None			−1.11	−3.63, 1.40	−1.36	−3.84, 1.11
Body mass indexe					0.07	−0.02, 0.15
Exercise					0.19	−0.20, 0.58
Smoker: yes vs. no					3.17	1.19, 5.14
Steroids: yes vs. no					2.43	0.98, 3.88
Hydroxychloroquine: yes vs. no					−1.89	−3.43, −0.35
Immunosuppressants: yes vs. no					−0.29	−1.74, 1.16

Abbreviation: CI, confidence interval.

^a The reference category was married or a marriage-like relationship.

^b The reference category was less than a high school education.

^c The reference category was full-time work.

^d The reference category was private insurance.

^e Weight (kg)/height (m)².