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Table 2 Baseline characteristics of the study population

From: Risk of human papillomavirus-related cancers among kidney transplant recipients and patients receiving chronic dialysis - an observational cohort study

 

End-stage renal disease

Population Controls

P

Number of participants

12,293

229,524

-

Male sex, n (%)

7,683 (62.5)

143,622 (62.6)

0.9

Age at indexdatea, n (%)

   

  14-49

3,516 (28.6)

64,464 (28.1)

0.5

  50-64

3,630 (29.5)

68,413 (29.8)

  ≥65

5,147 (41.9)

96,647 (42.1)

Comorbidity level at indexdateb

   

  Low

4,231 (34.4)

169,330 (73.8)

<0.001

  Medium

3,663 (29.8)

46,539 (20.3)

  High

4,399 (35.8)

13,655 (6.0)

Cause of end-stage renal disease

   

  Glomerulonephritis

1,751 (14.2)

-

NA

  Diabetes I + II

2,595 (21.1)

-

  Chronic interstitial nephritis

1,496 (12.2)

-

Hypertension and Chronic renal

  

  failure without specification

4,019 (32.7)

-

  Adult polycystic kidney disease

969 (7.9)

-

  Vasculitis

438 (3.6)

-

  Other

1,025 (8.3)

-

Transplant history

   

  No transplantation

8,978 (73.0)

-

NA

  ≥1 Transplantation

3,315 (27.0)

-

 
  1. aIndexdate: Date of first treatment for end-stage renal disease and date of sampling for controls.
  2. bThree levels of comorbidity was created based on Charlson comorbidity index score (CCI) at the date of first treatment with renal replacement therapy “Low” (CCI = 0), “Medium” CCI 1–2, and “High” CCI > 2. Renal diagnosis was not included in the CCI score in this study.