Volpato S, Blaum C, Resnick H, Ferrucci L, Fried LP, Guralnik JM: Comorbidities and impairments explaining the association between diabetes and lower extremity disability: The Women's Health and Aging Study. Diabetes Care. 2002, 25: 678-683.
Hakim AA, Petrovitch H, Burchfiel CM, Ross GW, Rodriguez BL, White LR, Yano K, Curb JD, Abbott RD: Effects of walking on mortality among nonsmoking retired men. N Engl J Med. 1998, 338: 94-99. 10.1056/NEJM199801083380204.
Studenski S, Perera S, Wallace D, Chandler JM, Duncan PW, Rooney E, Fox M, Guralnik JM: Physical performance measures in the clinical setting. J Am Geriatr Soc. 2003, 51: 314-322. 10.1046/j.1532-5415.2003.51104.x.
Bootsma-van der Wiel A, Gussekloo J, De Craen AJ, Van Exel E, Bloem BR, Westendorp RG: Common chronic diseases and general impairments as determinants of walking disability in the oldest-old population. J Am Geriatr Soc. 2002, 50: 1405-1410. 10.1046/j.1532-5415.2002.50363.x.
Ferrucci L, Penninx BW, Leveille SG, Corti MC, Pahor M, Wallace R, Harris TB, Havlik RJ, Guralnik JM: Characteristics of nondisabled older persons who perform poorly in objective tests of lower extremity function. J Am Geriatr Soc. 2000, 48: 1102-1110.
de Rekeneire N, Resnick HE, Schwartz AV, Shorr RI, Kuller LH, Simonsick EM, Vellas B, Harris TB: Diabetes is associated with subclinical functional limitation in nondisabled older individuals. Diabetes Care. 2003, 26: 3257-3263.
Gregg EW, Beckles GL, Williamson DF, Leveille SG, Langlois JA, Engelgau MM, Narayan KM: Diabetes and physical disability among older U.S. adults. Diabetes Care. 2000, 23: 1272-1277.
Leveille SG, Fried L, Guralnik JM: Disabling symptoms: what do older women report?. J Gen Intern Med. 2002, 17: 766-773. 10.1046/j.1525-1497.2002.20229.x.
Stuck AE, Walthert JM, Nikolaus T, Bula CJ, Hohmann C, Beck JC: Risk factors for functional status decline in community-living elderly people: a systematic literature review. Soc Sci Med. 1999, 48: 445-469. 10.1016/S0277-9536(98)00370-0.
Haight T, Tager I, Sternfeld B, Satariano W, van der Laan M: Effects of body composition and leisure-time physical activity on transitions in physical functioning in the elderly. Am J Epidemiol. 2005, 162: 607-617. 10.1093/aje/kwi254.
Tager IB, Haight T, Sternfeld B, Yu Z, van Der Laan M: Effects of physical activity and body composition on functional limitation in the elderly: application of the marginal structural model. Epidemiology. 2004, 15: 479-493. 10.1097/01.ede.0000128401.55545.c6.
National Institutes of Health: Third Report of the National Cholesterol Education Program Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults (Adult Treatment Panel III): Executive Summary. 2001, Bethesda, MD, National Institutes of Health, National Heart, Lung and Blood Institute
Ford ES, Giles WH, Mokdad AH: Increasing prevalence of the metabolic syndrome among U.S. adults. Diabetes Care. 2004, 27: 2444-2449.
Mokdad AH, Ford ES, Bowman BA, Dietz WH, Vinicor F, Bales VS, Marks JS: Prevalence of obesity, diabetes, and obesity-related health risk factors, 2001. JAMA. 2003, 289: 76-79. 10.1001/jama.289.1.76.
Laaksonen DE, Lakka HM, Niskanen LK, Kaplan GA, Salonen JT, Lakka TA: Metabolic syndrome and development of diabetes mellitus: application and validation of recently suggested definitions of the metabolic syndrome in a prospective cohort study. Am J Epidemiol. 2002, 156: 1070-1077. 10.1093/aje/kwf145.
Lakka HM, Laaksonen DE, Lakka TA, Niskanen LK, Kumpusalo E, Tuomilehto J, Salonen JT: The metabolic syndrome and total and cardiovascular disease mortality in middle-aged men. JAMA. 2002, 288: 2709-2716. 10.1001/jama.288.21.2709.
Centers for Disease Control and Prevention: The National Health and Nutrition Examination Survey (NHANES). Analytic and Reporting Guidelines. 2005, Hyattsville, MD, U.S. Department of Health and Human Services, 1-15.
Centers for Disease Control and Prevention: National Health and Nutrition Examination Survey. Anthropometry Procedures Manual. [http://www.cdc.gov/nchs/data/nhanes/bm.pdf]
Bohannon RW, Andrews AW, Thomas MW: Walking speed: reference values and correlates for older adults. J Orthop Sports Phys Ther. 1996, 24: 86-90.
Centers for Disease Control and Prevention. National Health and Nutrition Examination Survey Codebook for Data Release (1999-2000): Physical Activity Section of the SP and MEC CAPI Questionnaires (PAQ). [http://www.cdc.gov/nchs/data/nhanes/frequency/paq_cbk.pdf]
Centers for Disease Control and Prevention. National Health and Nutrition Examination Survey Codebook for Data Release (1999-2000): Physical Activity Section of the SP and MEC CAPI Questionnaire Individual Activity File (PAQIAF). [http://www.cdc.gov/nchs/data/nhanes/frequency/paqiaf_cbk.pdf]
Centers for Disease Control and Prevention. National Health and Nutrition Examination Survey Codebook for Data Release (2001-2002): Physical Activity Section of the SP and MEC CAPI Questionnaires (PAQ_B). [http://www.cdc.gov/nchs/data/nhanes/nhanes_01_02/paq_b_cbk.pdf]
Centers for Disease Control and Prevention. National Health and Nutrition Examination Survey Codebook for Data Release (2001-2002): Physical Activity Section of the SP and MEC CAPI Questionnaire Individual Activity File (PAQIAF_B). [http://www.cdc.gov/nchs/data/nhanes/nhanes_01_02/paqiaf_b_cbk.pdf]
Ainsworth BE, Haskell WL, Whitt MC, Irwin ML, Swartz AM, Strath SJ, O'Brien WL, Bassett DR, Schmitz KH, Emplaincourt PO, Jacobs DR, Leon AS: Compendium of physical activities: an update of activity codes and MET intensities. Med Sci Sports Exerc. 2000, 32: S498-504. 10.1097/00005768-200009001-00009.
Pate RR, Pratt M, Blair SN, Haskell WL, Macera CA, Bouchard C, Buchner D, Ettinger W, Heath GW, King AC, Kriska A, Leon AS, Marcus BH, Morris J, Paffenbarger RS, Patrick K, Pollock ML, Rippe JM, Sallis J, Wilmore JH: Physical activity and public health. A recommendation from the Centers for Disease Control and Prevention and the American College of Sports Medicine. Jama. 1995, 273: 402-407. 10.1001/jama.273.5.402.
Ainsworth BE, Haskell WL, Leon AS, Jacobs DR, Montoye HJ, Sallis JF, Paffenbarger RS: Compendium of physical activities: classification of energy costs of human physical activities. Med Sci Sports Exerc. 1993, 25: 71-80. 10.1249/00005768-199301000-00011.
U.S. Department of Health and Human Services: Helping patients who drink too much. a clinician's guide. 2005, Bethesda, MD, National Institutes of HealthNational Institute on Alcohol Abuse and Alcoholism,
Research Triangle Institute: SUDAAN Language Manual. 2004, Research Triangle Park, NC, Research Triangle Institute, [http://www.rti.org/sudaan/page.cfm?nav=922&objectid=7C51F22B-4A64-4A33-94DB287AE0CF7506]Release 9.0
Zuliani G, Romagnoni F, Bollini C, Leoci V, Soattin L, Fellin R: Low levels of high-density lipoprotein cholesterol are a marker of disability in the elderly. Gerontology. 1999, 45: 317-322. 10.1159/000022112.
Curb JD, Abbott RD, Rodriguez BL, Masaki KH, Chen R, Popper JS, Petrovitch H, Ross GW, Schatz IJ, Belleau GC, Yano K: High density lipoprotein cholesterol and the risk of stroke in elderly men: the Honolulu heart program. Am J Epidemiol. 2004, 160: 150-157. 10.1093/aje/kwh177.
Merched A, Xia Y, Visvikis S, Serot JM, Siest G: Decreased high-density lipoprotein cholesterol and serum apolipoprotein AI concentrations are highly correlated with the severity of Alzheimer's disease. Neurobiol Aging. 2000, 21: 27-30. 10.1016/S0197-4580(99)00103-7.
Stefanick ML, Mackey S, Sheehan M, Ellsworth N, Haskell WL, Wood PD: Effects of diet and exercise in men and postmenopausal women with low levels of HDL cholesterol and high levels of LDL cholesterol. N Engl J Med. 1998, 339: 12-20. 10.1056/NEJM199807023390103.
Janssen I, Fortier A, Hudson R, Ross R: Effects of an energy-restrictive diet with or without exercise on abdominal fat, intermuscular fat, and metabolic risk factors in obese women. Diabetes Care. 2002, 25: 431-438.
Angleman SB, Harris TB, Melzer D: The role of waist circumference in predicting disability in periretirement age adults. Int J Obes (Lond). 2006, 30: 364-373. 10.1038/sj.ijo.0803130.
Chen H, Bermudez OI, Tucker KL: Waist circumference and weight change are associated with disability among elderly Hispanics. J Gerontol A Biol Sci Med Sci. 2002, 57: M19-25.
Arterburn DE, McDonell MB, Hedrick SC, Diehr P, Fihn SD: Association of body weight with condition-specific quality of life in male veterans. Am J Med. 2004, 117: 738-746. 10.1016/j.amjmed.2004.06.031.
Fitzpatrick AL, Diehr P, Kuller LH, O'Meara ES: Is bigger better? Weighing in on weight in the elderly [abstract]. Am J Epidemiol. 2006, 163: S86-
The Diabetes Control and Complications Trial Research Group: The effect of intensive treatment of diabetes on the development and progression of long-term complications in insulin-dependent diabetes mellitus. N Engl J Med. 1993, 329: 977-986. 10.1056/NEJM199309303291401.
FitzGerald SJ, Brach JS, Storti KL, Kriska AM: Physical activity maintenance and the development of diabetes and metabolic syndrome: Walking Women Follow-up Study. Med Sci Sports Exerc. 2004, 36: S186-10.1097/00005768-200405001-00889.
Guralnik JM, LaCroix AZ, Abbott RD, Berkman LF, Satterfield S, Evans DA, Wallace RB: Maintaining mobility in late life. I. Demographic characteristics and chronic conditions. Am J Epidemiol. 1993, 137: 845-857.
Simonsick EM, Guralnik JM, Volpato S, Balfour J, Fried LP: Just get out the door! Importance of walking outside the home for maintaining mobility: findings from the women's health and aging study. J Am Geriatr Soc. 2005, 53: 198-203. 10.1111/j.1532-5415.2005.53103.x.
Buchner DM, Wagner EH: Preventing frail health. Clin Geriatr Med. 1992, 8: 1-17.
Rantanen T, Guralnik JM, Ferrucci L, Penninx BW, Leveille S, Sipila S, Fried LP: Coimpairments as predictors of severe walking disability in older women. J Am Geriatr Soc. 2001, 49: 21-27. 10.1046/j.1532-5415.2001.49005.x.
Judge JO, Underwood M, Gennosa T: Exercise to improve gait velocity in older persons. Arch Phys Med Rehabil. 1993, 74: 400-406.
Kaneko M, Morimoto Y, Kimura M, Fuchimoto K, Fuchimoto T: A kinematic analysis of walking and physical fitness testing in elderly women. Can J Sport Sci. 1991, 16: 223-228.
Petersen ML, Sinisi SE, van der Laan MJ: Estimation of direct causal effects. Epidemiology. 2006, 17: 276-284. 10.1097/01.ede.0000208475.99429.2d.