Short-term consistency in self-reported physical functioning among elderly women: the Women's Health and Aging Study

American Journal of Epidemiology
P J RathouzL P Fried

Abstract

The assessment of physical functioning and disability is integral to population-based and clinical research carried out among elderly people. Typically, functional status is measured through self-reported responses to questions of the form "Do you have difficulty [doing a specific task]?" Knowledge of the reliability and validity of these self-report measures is key to the interpretation of many research efforts, but data on these measurement parameters are sparse. This paper addresses this deficiency through analyses of data from the Weekly Substudy of the Women's Health and Aging Study, a cohort of Baltimore-area women aged > or =65 years with moderate to severe physical disability. Self-reported data on 20 activities, obtained weekly over a 6-month period in 1993 or 1994, were analyzed to investigate how time intervals between assessments and a subject's age and baseline level of disability influenced the consistency of self-reports of disability at both the population level and the individual level. The prevalence of self-reported difficulty increased with baseline disability and, to a lesser extent, with age group. Consistency for all items was very high over short time intervals, but it decreased substantially with increa...Continue Reading

Citations

May 11, 2004·Aging Clinical and Experimental Research·Margaret MatthewsG Paul Eleazer
Sep 20, 2008·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·H WagnerK Michaëlsson
Jul 30, 2002·Social Science & Medicine·Megan BeckettYi-Li Chuang
Aug 25, 2001·Journal of Clinical Epidemiology·L P FriedUNKNOWN WHAS II Collaborative Research Group
Oct 24, 2002·Journal of Clinical Epidemiology·Glenn V OstirUNKNOWN Women's Health and Aging Study
Dec 5, 2002·Journal of Clinical Epidemiology·Hedda Agüero-TorresLaura Fratiglioni
Mar 14, 2002·Journal of the American Geriatrics Society·M SowersG Albrecht
Oct 18, 2002·Journal of the American Geriatrics Society·Thomas M GillChristianna S Williams
Aug 5, 2003·Journal of the American College of Nutrition·Judith S Gavaler, Elaine Rosenblum
Dec 10, 2008·American Journal of Epidemiology·Helene WagnerKarl Michaëlsson
Mar 5, 2004·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Siobhan C MatyCaroline S Blaum
Dec 15, 2006·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Kirsten AvlundMarianne Schroll
Jul 5, 2012·Menopause : the Journal of the North American Menopause Society·Lisa A TsengAnne B Newman
Dec 4, 2002·Journal of Epidemiology and Community Health·J J MalmbergN A Haapanen-Niemi
Oct 31, 2013·The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences·Torrance J HigginsTodd M Manini
Nov 6, 2010·Gait & Posture·Joe Verghese, Xiaonan Xue
Nov 5, 2003·Journal of Aging and Health·Vicki A FreedmanMorton H Kleban
Oct 29, 2008·Clinical Rehabilitation·Eling D de BruinWiebren Zijlstra
Aug 27, 2010·Journal of Dental Research·A SundströmL-G Nilsson
May 28, 2005·International Journal of Geriatric Psychiatry·Kee-Lee Chou, Iris Chi
Nov 28, 2009·American Journal of Industrial Medicine·Paulo FrazãoMárcia Furquim de Almeida
Apr 7, 2004·Journal of the American Geriatrics Society·Luigi FerrucciUNKNOWN Interventions on Frailty Working Group
Apr 1, 2006·Journal of Aging and Physical Activity·Jarmo J MalmbergPekka Oja

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