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[Critical age as the main parameter of deterioration of health in the elderly]
1Geriatric Depts., Rebecca Sieff Government Hospital, Safed and Carmel Hospital, Haifa.
Insights
The critical age (CA) is the decade with the highest increase in illness for seniors, with ages 70-79 being the most dangerous. Health stabilizes after this period due to system-specific deterioration and improved risk factors.
Area of Science:
- Gerontology
- Biomedical Sciences
- Public Health
Context:
- Aging populations worldwide face increased health challenges.
- Understanding age-related disease trajectories is crucial for healthcare planning.
- The concept of critical age (CA) identifies specific decades of heightened illness risk.
Purpose:
- To identify critical age (CA) periods for various pathological conditions in the elderly.
- To analyze the relationship between system-specific deterioration and overall health decline.
- To investigate factors influencing health stabilization in advanced age.
Summary:
- This study computed 693 parameters across decades of life and physiological systems, identifying the 70-79 age range as the most dangerous for health deterioration.
- Critical age (CA) findings were consistent across certain systems (immune, endocrine, cardiovascular) and conditions like diabetes.
- Health deterioration is largely system-oriented, with rates slowing or stabilizing after the peak CA decade, partly due to improved risk factors and societal adaptations.
Impact:
- Identifies specific age windows for heightened health risks in the elderly, enabling targeted interventions.
- Provides a framework for understanding system-specific aging trajectories and frailty.
- Highlights the importance of medical and social support in improving living conditions and health outcomes for the elderly.
Abstract:
The concept of critical age (CA) relates to accelerated development of illness in the elderly and defines the decade in which there is the greatest increase in a specific pathological condition. Clinically, increased rates for pathological medical, biological, psychological and social conditions occur in defined populations. 78 parameters with linear increase in rate were excluded. 693 parameters were computed and classified according to both decade of life and to physiological and multisystem problems (such as diabetes). The most dangerous age is 70-79 years, when calamities of various degrees of severity "bomb" a subject approximately twice a month. CA was similar for some systems (immune, endocrine, and cardiovascular), and for diabetes and hypercholesterolemia. Among 351 CA distributions relating to 27 systemic and multisystemic problems, there were 103 statistically different CAs. We conclude that the rate of deterioration in health is largely system-oriented. Following the most dangerous decade, rates of increase in CA slow or CA even decreases, so that health is relatively stabilized. Such stabilization is related in part to improvement in risk factors. Improved health at age 80 seems to be related to selection by the death of the sick, but the concept of true functional improvement at this age is being seriously discussed. Physical, psychological and social bilateral adaptation of both old people and of western society, play important roles, because better medical and social protection improves living conditions. Our data confirm the identification of 2 subpopulations of the elderly, the young-old and the old-old. Study of frailty according to both age and physiological systems gives additional useful information.