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What causes low eGFR in the elderly? Understanding age-related kidney function decline

As people age, it is normal for their estimated glomerular filtration rate (eGFR) to decline, with studies showing a progressive decrease after the age of 40. This age-related decrease in kidney function is a physiological process, but it is often compounded by other factors and chronic conditions that can exacerbate the decline and explain **what causes low eGFR in the elderly**.