I am a 57 year old woman,seemingly in great condition. I have been getting slightly elevated creatinine levels (1 - 1.2) and very low eGFR numbers (52- 59).I work out regularly, including strength training, and believe I must have higher muscle mass and lower BMI than than the average 57 year old woman. I'm wondering if this could account for these labs which indicate I have stage 3 kidney disease. I feel fine, which I know isn't unusual with kidney disease.
Also, I found an alternate GFR calculator from the mayo clinic, which supposedly is more accurate with healthy individuals. Using this formula, my GFR comes out significantly above 60.
Does anyone have any experience with these issues?