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Table 3 The distribution of readmission reasons among patients in different CCI score groups

From: Association between the Charlson Comorbidity Index and the risk of 30-day unplanned readmission in patients receiving maintenance dialysis

Reason of rehospitalization

CCI = 2

n (%)

3 = <CCI < =4

n (%)

5 = <CCI < =6

n (%)

CCI > 6

n (%)

Total

n (%)

P-valuea

Dialysis access

531 (11.1)

698 (10.7)

659 (11.6)

313 (10.8)

2201 (11.1)

0.3

Dialysis complications

920 (19.2)

1355 (20.8)

1145 (20.2)

580 (20.0)

4000 (20.1)

Others

3338 (69.7)

4473 (68.5)

3870 (68.2)

2011 (69.3)

13692 (68.8)

  1. Abbreviations: CCI Charlson Comorbidity Index
  2. asignificance was assessed by Chi-squared test