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Journal of the American Geriatrics Society v.65 no.1, 2017년, pp.98 - 106   SCI SCIE SSCI
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Kidney Function and Disability‐Free Survival in Older Women

Cavanaugh, Alyson M. (Joint Doctoral Program in Public Health (Epidemiology), San Diego State University/University of California, San Diego, California ) ; LaCroix, Andrea Z. (Division of Nephrology and Division of Preventive Medicine, UC San Diego, and Veterans' Affairs Healthcare System, San Diego, California ) ; Kritz‐Silverstein, Donna (Division of Nephrology and Division of Preventive Medicine, UC San Diego, and Veterans' Affairs Healthcare System, San Diego, California ) ; Rillamas‐Sun, Eileen (Fred Hutchinson Cancer Research Center, Public Health Sciences, Seattle, Washington ) ; Rifkin, Dena E. (Division of Nephrology and Division of Preventive Medicine, UC San Diego, and Veterans' Affairs Healthcare System, San Diego, California ) ;
  • 초록  

    Objectives To examine the prospective association between kidney function and three outcomes: survival to age 85 with functional independence, survival to age 85 with disability, and death before age 85. Design Prospective study. Setting Women's Health Initiative, conducted at 40 U.S. clinical centers. Participants Postmenopausal women enrolled between 1993 and 1998 with baseline biomarker assessments who had the potential to reach age 85 before September 2013 (N = 7,178). Measurements Kidney function was measured according to estimated glomerular filtration rate (eGFR) calculated from serum creatinine collected at baseline. Outcomes were survival to age 85 with functional independence, survival with disability, or death before age 85. Disability was defined as mobility or activity of daily living limitations measured by questionnaire. Results eGFR was greater than 90 mL/min per 1.73 m 2 in 22.7% of women, 60 to 89 mL/min per 1.73 m 2 in 66.5%, 45 to 59 mL/min per 1.73 m 2 in 8.7%, and less than 45 mL/min per 1.73 m 2 in 2.0%. Median follow‐up was 15 years. Of 4,953 survivors, 3,155 reported no physical disability at age 85. Two thousand two hundred twenty‐five participants died before age 85. Women with an eGFR of 90 mL/min per 1.73 m 2 or greater had 2.71 times greater odds of survival to age 85 with functional independence than of dying before 85 (95% confidence interval (CI) = 1.62–4.51) than those with an eGFR less than 45 mL/min per 1.73 m 2 , women with an eGFR of 60 to 89 mL/min per 1.73 m 2 had 3.04 times (95% CI = 1.85–5.00) greater odds, and women with an eGFR of 45 to 59 mL/min per 1.73 m 2 had 2.22 times (95% CI = 1.31–3.76) greater odds. Similar, but slightly weaker odds were seen for survival to age 85 with disability. Better kidney function was not significantly associated with greater likelihood of survival to age 85 with independent function than of surviving with disability. Conclusion Better kidney function was associated with greater likelihood of survival to age 85 with and without disability.


  • 주제어

    eGFR .   disability .   physical function .   successful aging.  

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