Table 2.

Multivariate Cox proportional hazards model for survival in 311 patients ages ≥70 years old (107 patients with conservative management and 204 patients with RRT) using the time of modality choice as the starting point in survival calculation

VariableHazard Ratio95% Confidence IntervalP Value
Age, yr1.051.01 to 1.080.01
Davies comorbidity score (no comorbidity as reference)<0.001
 Intermediate comorbidity1.891.01 to 3.52
 Severe comorbidity4.112.15 to 7.85
Treatment modality (CM versus RRT; CM as reference)0.620.42 to 0.920.02
  • CM, conservative management.