@Dillinger wrote, "
the GFR is stated as being 'normal' which is a bit annoying as they used to give a figure."
There is a calculator for eGFR here, on the Renal Association website,
http://egfrcalc.renal.org, as long as you know your creatinine levels.
I think they don't generally give a number these days because eGFR is one of those "add the number you first thought of" things, based on race, age etc.
The following explains the results, particularly note the use of the word AND at Stage 2, which is why results may say, simply, "above 60".
Stage of Chronic Kidney Disease
eGFR ml/min/1.73 m
Stage 1: the eGFR shows normal kidney
function but you are already known to have some kidney damage or disease. For example, you may have some protein or blood in your urine, an abnormality of your kidney, kidney inflammation, etc.
90 or more
Stage 2: mildly reduced kidney function AND you are already known to have some kidney damage or disease. People with an eGFR of 60-89 without any known kidney damage or disease are not considered to have chronic kidney disease (CKD).
60 to 89
Stage 3: moderately reduced kidney function. (With or without a known kidney disease. For example, an elderly person with ageing kidneys may have reduced kidney function without a specific known kidney disease.)
45 to 59 (3A)
30 to 44 (3B)
Stage 4: severely reduced kidney function. (With or without known kidney disease.)
15 to 29
Stage 5: very severely reduced kidney function. This is sometimes called end-stage kidney failure or established renal failure.
Less than 15
Sally
edit: I don't think the bit I copied has come out in a very sensible layout, but the info is on the Renal Assoc. web site, so anyone who needs it can find it there.