Table 1.

Demographic and clinical characteristics of the study population (n=1612)

VariableValue
Sex
 Male868 (53.8)
 Female744 (46.2)
Primary renal disease
 CAKUT651 (40.4)
 GN288 (17.9)
 Hereditary nephropathy117 (7.3)
 Cystic kidney disease189 (11.7)
 Hemolytic-uremic syndrome48 (3.0)
 Ischemic renal failure22 (1.3)
 Metabolic disorder72 (4.5)
 Vasculitis54 (3.3)
 Miscellaneous93 (5.8)
 Unknown or missing (12 missing)78 (4.8)
Median age at start of RRT (yr)12.8 (9.0–15.6)
Age at start of RRT
 0 to <2 yr70 (4.3)
 2 to <5 yr98 (6.1)
 5 to <13 yr540 (33.5)
 13 to <17 yr713 (44.2)
 ≥ 17 yr191 (11.9)
Median height SDS at start of RRT (n=915)−1.56 (–2.75 to –0.44)
Treatment modality at start of RRT (33 missing)
 Hemodialysis648 (41.1)
 Peritoneal dialysis654 (41.4)
 Transplantation277 (17.5)
Period of start of RRT
 <1990224 (13.9)
 1990–1999693 (43.0)
 2000–2011695 (43.1)
Median age at time of final measurement (yr)19.0 (18.1–20.0)
Number of RRT modalities
 1418 (25.9)
 2685 (42.5)
 ≥3509 (31.6)
Time on RRT at final height measurement
 0 to <2 yr269 (16.7)
 2 to <5 yr422 (26.2)
 5 to <10 yr542 (33.6)
 10 to <15 yr260 (16.1)
 ≥15 yr119 (7.4)
Median percentage of lifetime with functioning graft15.9 (0.0–34.7)
Treatment modality at final height measurement (28 missing)
 Hemodialysis272 (17.2)
 Peritoneal dialysis145 (9.1)
 Transplantation1167 (73.7)
  • Unless otherwise noted, values are number (%) of patients. Medians are accompanied by interquartile ranges. CAKUT, congenital anomalies of the kidney and urinary tract; RRT, renal replacement therapy; SDS SD score.