Study of fatigue frequency and its association with sociodemographic and clinical variables in patients with multiple sclerosis.

Objective: To evaluate the frequency of fatigue and its association with demographic variables and disease specific variables in multiple sclerosis (MS) patients.

Methods: In this study, 300 patients (72% female, 28% male) with clinically definite MS admitted to the outpatient MS clinic of Imam Reza Hospital, affiliated to Kermanshah University of Medical Sciences, Kermanshah, Iran, were evaluated between November 2011 and September 2012. Their demographic and clinical characteristics were recorded on standardized forms.