Table 2.

Slope of Regression Line for Log Incidence of ESRD for Combined Diagnostic Category of Reflux Nephropathy (Reflux Nephropathy + Renal Hypoplasia/Dysplasia + Pyelonephritis) and Nonreflux Nephropathy on Year of Treatment for ESRD

Age Category
(Years)
Combined
Reflux
Nephropathy
% Change/Year
Nonreflux
Nephropathy
% Change/Year
5–14.19 (−.88, 1.26)1.33 (.64, 2.01)
15–24.01 (−.37, .39).76 (.35, 1.16)
25–34.14 (−.31, .59).79 (.45, 1.13)
35–44.68 (−.27, 1.62).24 (−.04, .51)
  • * Ninety-five percent confidence limits in parentheses.

     Interaction term between age and year F3,104= .5; P = .7.

  • Interaction term between age and year F3,104= 3.7; P = .01.