Table 4

Comparison of IRRs among LA incidence rates with respect to normal kidney function group

Comparison groupIRRIRRLIRRUFisher exact two-sided P value
Normal kidney function1111
Mildly reduced kidney function0.610.125.260.63
Moderately reduced kidney function2.270.5620.000.41
Severely reduced kidney function5.260.3771.430.12
  • IRR, incidence rate ratio; IRRL, lower bound of the incidence rate ratio; IRRU, upper bound of the incidence rate ratio.