2005
DOI: 10.1111/j.1532-5415.2005.00506.x
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Relative Fitness and Frailty of Elderly Men and Women in Developed Countries and Their Relationship with Mortality

Abstract: Relative fitness and frailty can be defined in relation to deficit accumulation. In population studies from developed countries, deficit accumulation is robustly associated with mortality and with age. In samples (e.g., clinical/institutional) in which most people are frail, there is no relationship with age, suggesting that there are maximal values of deficit accumulation beyond which survival is unlikely.

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Cited by 490 publications
(495 citation statements)
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References 37 publications
(54 reference statements)
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“…This approach recognizes that frailty is a continuum—it is not all or none; the more deficits a person has, across more organ systems and physiologic parameters, the more likely that person is to be frail. Although the idea and approach are relatively simple, the results yielded by the FI have been consistent across many settings, even though not every FI considers the same deficits, or even the same number of deficits 10, 18, 19. The prognostic implications of FI have been demonstrated not only in a variety of different chronic conditions (osteoporosis,20 human immunodeficiency virus and AIDS,21 kidney disease22) but also in acute disease states (trauma23).…”
Section: Discussionmentioning
confidence: 94%
“…This approach recognizes that frailty is a continuum—it is not all or none; the more deficits a person has, across more organ systems and physiologic parameters, the more likely that person is to be frail. Although the idea and approach are relatively simple, the results yielded by the FI have been consistent across many settings, even though not every FI considers the same deficits, or even the same number of deficits 10, 18, 19. The prognostic implications of FI have been demonstrated not only in a variety of different chronic conditions (osteoporosis,20 human immunodeficiency virus and AIDS,21 kidney disease22) but also in acute disease states (trauma23).…”
Section: Discussionmentioning
confidence: 94%
“…Related analyses classified individuals' likely lifespans according to trajectories of physiological indices (Yashin et al ., 2006, 2010). Further, a landmark series of studies of the accumulation of age‐related functional deficits in individuals over time identified a snowball effect where individuals with physiological deficits are more likely to accumulate further deficits over time and are exponentially more likely to die (Mitnitski et al ., 2005, 2006). Taken together, these studies indicate that the trajectory of an individuals' physiological state over time provides a rich context for understanding future mortality risk.…”
Section: Introductionmentioning
confidence: 99%
“…In such cases the cumulative indices of health/well-being disorders (DIs) (also known as "frailty indices, FI") represent a reasonable alternative. Statistical properties of such indices have been recently investigated using different survey data (Goggins et al 2005;Kulminski et al 2006a,b;Mitnitski and Rockwood 2006;Mitnitski et al 2005). The results of these analyses suggest that the DIs can describe the aging-related changes in health/ well-being/survival status in humans.…”
Section: Introductionmentioning
confidence: 99%