*Model 1 = demographics: adjusted for age, gender (male) and by dialysis center clustering. †Model 2 = dialysis specific risk factors and comorbid conditions: adjusted for covariates in Model 1 plus d
Abbreviation: CCI, Charlson co-morbidity index. Data are no. (%) or mean ± standard deviation unless otherwise indicated. *Statistical significance (p<0.05) comparing patients with and without PDMC. #