XVII. To explore the association between grade 2-4 neuropathy and longitudinal changes in the following functional status measures: a) Older Americans Resources and Services (OARS) Multidimensional Functional Assessment Questionnaire (MFAQ) (Instrumental Activities of Daily Living [IADL]); b) Medical Outcomes Study (MOS) Physical Functioning; c) Karnofsky Performance Status Rated Healthcare Professional; d) Timed "Up and Go"; e) OARS Physical Health Section.