. Author manuscript; available in PMC: 2013 Feb 1.

Published in final edited form as: Arthritis Care Res (Hoboken). 2012 Feb;64(2):176–183. doi: 10.1002/acr.20676

TABLE 4.

Multivariate Regression Models for productivity at work and home

	Work Missed Last Month, n =49 pseudo R²=0.15		Household Work Missed Last Month, n =135 pseudo R²=0.05
	Coefficient	P Value	Coefficient	P Value
Limited SSc¹	-0.42	0.742	1.64	0.032
Diffuse SSc¹	-1.33	0.317	1.10	0.143
Education Level	-0.96	0.014	0.14	0.305
Physician Assessment	0.50	0.026	-0.04	0.669
Patient Global Assessment²	0.84	0.300	0.91	0.073
Health Assessment Questionnaire –Disability Index	-0.07	0.929	1.03	<0.001
Functional Assessment of Chronic Illness Therapy-Fatigue Scale	-0.04	0.420	-0.03	0.097
Center for Epidemiologic Studies - Depression Scale Short Form	-0.02	0.780	0.04	0.187

Reference Group = Overlap syndrome

Patient Global Assessment where 1 = Excellent / Very Good / Good, 2 = Fair / Poor