Incidence rates per 100 person-years of first episodes of bloodstream infection among hemodialysis patients by potential risk factors.

Abbreviations: No., Number of first episodes of bloodstream infection; IRR incidence rate ratio; CI, confidence interval; AV fistula, arteriovenous fistula.
a Per 1 00 person-years.
b Adjusted for all variables in the table and time since study entry using Poisson Regression.
c Calculated for the corresponding adjusted incidence rate ratios using Poisson regression.
d Three levels of comorbidity was created based on the modified Charlson comorbidity index (m-CCI) score 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 m-CCI score. See text for details.
f A time varying covariate categorizing risk time in two categories based on the date of first arteriovenous fistula surgery.
Incidence rates per 100 person-years of first episodes of bloodstream infection among hemodialysis patients by potential risk factors.