Table 1

Patients enrolled in the four type 1 diabetes cohorts with macroalbuminuria or prevalent ESRD and numbers of eligible patients in the current study

Participating centerTotal
JoslinFinnDianeStenoINSERM
Years of recruitment*1993–20021998–20011993–19991993–1998
Number of patients recruited7848985404562,678
Number of eligible patients in CKD stages 1–3432 (199)486 (253)368 (182)232 (99)1,518 (733)
Number of patients in CKD stages 4–569 (68)66 (63)32 (31)71 (61)238 (223)
Number of noneligible patients283346140153922
Number of patients with prevalent ESRD220268350523
  • *Years of recruitment indicate calendar years during which 25th and 75th percentiles of the patients were enrolled into the follow-up study.

  • ¶Patients were eligible for the study if they 1) had type 1 diabetes, had persistent macroalbuminuria at baseline, and had at least a 42-month follow-up time with eGFR determinations; 2) had type 1 diabetes, had persistent macroalbuminuria at baseline, and developed ESRD during follow-up; 3) had type 1 diabetes, had persistent macroalbuminuria at baseline, and had at least a 12-month follow-up time before death unrelated to ESRD.

  • †Data in parentheses show the number of patients who progressed to ESRD or died due to causes unrelated to ESRD during follow-up.