Table 1.

Slope of Regression Line for Log Incidence of ESRD for Reflux Nephropathy and Nonreflux Nephropathy, on Year of Treatment for ESRD

Age Category
(Years)
Reflux
Nephropathy
% Change/Year
Nonreflux
Nephropathy
% Change/Year
5–14−.22 (−.73, .29)1.41 (.69, 2.11)
15–24.16 (−.33, .64).69 (.29, 1.09)
25–34.31 (−.15, .78).77 (.43, 1.10)
35–441.58 (.66, 2.49).18 (−.10, .46)
  • * Ninety-five percent confidence limits in parentheses.

     Interaction term between age and year F3,104= 4.6; P = .005.

  • Interaction term between age and year F3,104= 5.0; P = .001.