Demographic and clinical factors associated with physician service use in systemic sclerosis.

OBJECTIVE: To assess physician service use in a large sample of patients with systemic sclerosis (SSc), and to determine factors associated with physician use. METHODS: Our sample was a national SSc registry maintaining data on demographics (age, sex, race/ethnicity, education, income) and clinical factors (disease onset, organ involvement, etc.). Registry cohort members completed detailed questionnaires, and rheumatologists provided clinical …