Kidney Function With Age. As you grow older your kidney function declines. To discover how kidney function progresses the researchers examined the kidney function of a group of people between the ages of 50 and 70 and two groups of people between the ages of 70 to 95.
Kidney function declines with age and ages and is a major source of mortality. Stage 3b means kidney function is between 30 and 44 percent. That is just part of nature and many people over the age of 65 have a gfr that puts them into stage 3 kidney disease.
However our data indicate that the 60 ml min 1 73 m 2 cannot be used to define a diseased population.
Amount of kidney tissue decreases. As a matter of fact the largest number of people with kidney disease are those over the age of 70 and most of them are in stage 3 or 4 kidney disease. The normal range of kidney glomerular filtration rate is 100 to 130 ml min 1 73m2 in men and 90 to 120ml min 1 73m2 in women below the age of 40. However our data indicate that the 60 ml min 1 73 m 2 cannot be used to define a diseased population.