Table 1.

Basic demographics of the patient cohorts used for validation of prediction equationa

PPDSC SampleGerman SampleTotal Population
n343064
Age (yr)8.2 ± 6.2b12.6 ± 5.910.2 ± 6.4
% male536961
Height (cm)116.0 ± 41.4b136.5 ± 27.2125.6 ± 36.7
Height SDS−1.7 ± 2.2−2.2 ± 1.7−2.0 ± 2.0
BSA (m2)0.98 ± 0.541.12 ± 0.371.03 ± 0.47
BMI (kg/m2)18.7 ± 4.3b16.4 ± 3.017.6 ± 3.9
BMI SDS0.8 ± 1.3b−0.8 ± 1.5−0.02 ± 1.6
TBW (L)15.1 ± 10.419.0 ± 8.116.9 ± 9.5
TBW (% body wt)54.6 ± 12.4b59.4 ± 5.856.8 ± 10.1
  • a Appropriate national standards applied. PPDSC, Pediatric Peritoneal Dialysis Study Consortium; SDS, SD score; BSA, body surface area; BMI, body mass index; TBW, total body water.

  • b Significant difference between US and German children (P < 0.05).