Tiny bit high.
Dehydration can slightly elevate it
very heavy exercise might elevate it
high protein intake might slightly elevate it.
It is tested because it is a crude indicator of kidney function.
Some meds might elevate it-perhaps some NSAID
It generally rises with age -
Worth asking you doc if any meds you are taking might elevate it
I think it is generally a little higher in blacks than whites
Have you had any IV dye-imaging study-lately.Some of the iodine based dyes can decrease kidney function-usually temporary.
How much CHANGE was there-from what to what-?
Some HBP meds COULD elevate it if they decrease renal blood flow-but should be tiny increase.

1.11 isn't a number your MD is going to be very concerned about-especially if it isn't dramatically higher than the last test.
Luck
Charlie