Yvonne M. Golightly|Robert F. DeVellis|Amanda E. Nelson|Marian T. Hannan|L. Stefan Lohmander|Jordan B. Renner|Joanne M. Jordan
Psychometric Properties of the Foot and Ankle Outcome Score in a Community?Based Study of Adults With and Without Osteoarthritis
University of North Carolina at Chapel Hill|University of North Carolina at Chapel Hill|University of North Carolina at Chapel Hill|Hebrew SeniorLife|Harvard University|Lund University|University of Southern Denmark|University of North Carolina at Chapel Hill|University of North Carolina at Chapel Hill
objective foot ankle problems common adults large observational studies needed advance understanding etiology impact conditions valid reliable measures foot ankle symptoms physical function necessary research study examined psychometric properties foot ankle outcome score faos subscales pain symptoms activities daily living adl sport recreational function sportrecreation foot anklerelated quality life qol large communitybased sample african american white men women ages 50 years methods johnston county osteoarthritis project participants n 1670 completed 42item faos mean age 69 years 68 women 31 african american mean body mass index bmi 315 kgm 2 internal consistency testretest reliability convergent validity structural validity subscale examined sample subgroups according race sex age bmi presence knee hip osteoarthritis presence knee hip low back symptoms results sample subgroup cronbachs alpha coefficients ranged 095097 pain 097098 adl 094096 sportrecreation 089092 qol 072082 symptoms correlation coefficients ranged 024052 pain symptoms subscales foot ankle symptoms 030055 adl sportrecreation subscales western ontario mcmaster universities osteoarthritis index function subscale intraclass correlation coefficients testretest reliability ranged 063081 items loaded single factor subscale except symptoms 2 factors conclusion faos exhibited sufficient reliability validity large cohort study