Table 1.

Composition of the observed experience by calendar period among all children and adults initiating ESRD care from 1995 to 2013 in the United States

VariableCalendar Year
Person-years of observation
 Over all observation669,2641,621,412231,91752,355,051
 During treatment with dialysis606,3921,340,6451,790,1681,773,237
 During time with a functioning transplant62,872280,767529,007581,814
Age at first ESRD service, yr60 [47–71]58 [45–69]56 [44–67]56 [44–66]
Males, %54555657
Race, %
Primary kidney disease, %
 Congenital anomalies of the kidneys and urinary tract1222
Socioeconomic quartile, %
Primary insurance coverage, %
 No coverage8101111
Comorbidities,b %
  • Because the unit of analysis was person-time rather than person, the characteristics presented are weighted by a factor derived from the number of person-years of observation and number of events and presented as weighted median [interquartile range] or percentage (for example, percentage of person-years contributed by men). Over-representation of the experience during the first year of ESRD care in the 1995–1999 period may influence the estimates for that period.

  • a Includes FSGS.

  • b Comorbidities counted included congestive heart failure, ischemic heart disease/coronary artery disease, myocardial infarction, cardiac arrest, cardiac dysrhythmia, pericarditis, atherosclerotic heart disease, other cardiac disease, cerebrovascular disease/cerebrovascular accident/transient ischemic attack, peripheral vascular disease, diabetes, chronic obstructive pulmonary disease, current tobacco use, malignancy, alcohol dependence, drug dependence, inability to ambulate, and inability to transfer. If no comorbidities were reported, it was assumed that there were none.