Table 2.

The 30-day readmission rate stratified by the Dialysis modality and gender in different CCI score groups

Subgroup	CCI = 2	3 < =CCI < =4	5 < =CCI < =6	CCI > 6	Total
Dialysis modality
Hemodialysis	12.7%	13.3%	14.7%	15.3%	13.9%
Peritoneal	22.2%	21.2%	22.1%	20.9%	21.7%
Gender
Male	15.8%	15.5%	16.5%	17.3%	16.1%
Female	15.7%	15.6%	16.0%	15.9%	15.8%
Total	15.8%	15.5%	16.3%	16.7%	16.0%

Abbreviations: CCI Charlson Comorbidity Index