title: The authors reply.
authors.affiliation: Division of Nephrology, Department of Internal Medicine, Southern California Permanente Medical Group, Los Angeles, California, USA.
authors.forename: Victoria A
authors.initials: VA
authors.lastname: Kumar
authors.affiliation: Research and Evaluation, Southern California Permanente Medical Group, Pasadena, California, USA.
authors.forename: Margo A
authors.initials: MA
authors.lastname: Sidell
authors.affiliation: Research and Evaluation, Southern California Permanente Medical Group, Pasadena, California, USA.
authors.forename: Jason P
authors.initials: JP
authors.lastname: Jones
authors.affiliation: Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
authors.forename: Edward F
authors.initials: EF
authors.lastname: Vonesh
mesh_terms: D005260:Female; D006279:Health Maintenance Organizations; D006801:Humans; D007676:Kidney Failure, Chronic / Q000401:mortality* / Q000628:therapy*; D008297:Male; D010530:Peritoneal Dialysis / Q000401:mortality*; D006435:Renal Dialysis / Q000401:mortality*