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Table 3 Multivariable-adjusted and propensity score-stratified models without interaction variables

From: Propensity scores in the presence of effect modification: A case study using the comparison of mortality on hemodialysis versus peritoneal dialysis

  Multivariable-adjusted model Propensity score-stratified model
  HR (95% CI) HR (95% CI)
Age (per yr) 1.05 (1.05; 1.05) - -
Female vs male gender 0.89 (0.85; 0.93) - -
Primary renal disease vs GN*    - -
HT 1.25 (1.13; 1.38) - -
RVD 1.74 (1.57; 1.92) - -
DM 2.24 (2.05; 2.46) - -
Other 1.33 (1.22; 1.44) - -
Year of first RRT (per yr) 0.99 (0.98; 1.00) - -
Dialysis center 0.13 - 1.61#   - -
Peritoneal vs hemodialysis 0.99 (0.94; 1.05) 0.97 (0.92; 1.03)
  1. * Compared with GN as reference group.
  2. # Range of HRs, we did not provide 95%CIs for center because of the large number of estimates.
  3. yr = year, GN = glomerulonephritis, HT = hypertension, RVD = renovascular disease, DM = diabetes mellitus, RRT = renal replacement therapy, HR = hazard ratio