Neurology Research International / 2013 / Article / Tab 1 / Research Article
Methodology of an International Study of People with Multiple Sclerosis Recruited through Web 2.0 Platforms: Demographics, Lifestyle, and Disease Characteristics Table 1 Summary of validated tools used.
Outcome variable Instrument (reference) Number of items Authors (reference) Disability Patient determined disease steps (PDDS) 1 Hohol et al., 1995 [12 ] Comorbidities Self-administered comorbidity questionnaire (SCQ) 13 Sangha et al., 2003 [13 ] Health-related quality of life Multiple sclerosis quality of life-54 (MSQOL-54) 54 Vickrey et al., 1995 [14 ] Dietary habits Diet habits questionnaire (DHQ), modified 20 McKellar et al., 2008 [15 ] Physical activity International physical activity questionnaire (IPAQ) 7 Craig et al., 2003 [16 ] Social support Single item measure of social support (SIMSS) 1 Blake and McKay, 1986 [17 ] Fatigue Fatigue severity scale (FSS) 9 Krupp et al., 1989 [18 ] Depression Patient health questionnaire short version (PHQ-2) 2 Kroenke et al., 2003 [19 ]