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Table 3 Mortality outcomes with moderate to severe periodontitis among the whole cohort, propensity-weighted analyses and propensity-score matched patients with end-stage kidney disease treated with hemodialysis

From: Periodontitis and early mortality among adults treated with hemodialysis: a multinational propensity-matched cohort study

   No (events per 100 person years)  
Number of participants included in analyses Moderate to severe periodontitis No or mild periodontitis Hazard ratio (95% CI)*
All-cause mortality
 Whole cohort 3338 242 (9.1) 408 (11.7) 0.94 (0.73 to 1.21)
 Propensity-weighted 3338 242 (9.1) 408 (11.7) 0.83 (0.68 to 1.00)
 Propensity-matched 2710 242 (9.1) 314 (13.0) 0.74 (0.61 to 0.90)
Cardiovascular mortality
 Whole cohort 3338 113 (4.3) 212 (6.1) 0.91 (0.64 to 1.29)
 Propensity-weighted 3338 113 (4.3) 212 (6.1) 0.76 (0.58 to 1.00)
 Propensity-matched 2710 113 (4.3) 167 (6.9) 0.67 (0.51 to 0.88)
  1. Hazard ratios are reported for moderate to severe periodontitis (no or mild periodontitis is the reference group). CI denotes confidence interval. *Hazard ratios are controlled for age, sex, income, smoking, serum phosphorus, myocardial infarction, diabetes mellitus, mean arterial pressure, time on dialysis and number of teeth using a Cox proportional hazards regression model. Clustering by country was accounted for by random effects Cox proportional hazards regression fitted using a shared frailty model
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