Table 2.

Baseline urinary measures of patients with primary hyperoxaluria without ESRD at or before diagnosis

Variable	All Participants with PHa	Adult Participants with PHb	Adult Reference Populationc
U[vol], ml/24 h	2193 (1605, 3031); 151	2740 (2200, 3095); 53	1319 (1046, 1889); 101
U[ox], mmol/24 h	1.64 (1.11, 2.44); 168	1.51 (0.89, 1.93); 56	0.27 (0.22, 0.32); 101
U[Ca], mg/24 h	72.9 (43.4, 134.2); 130	100.5 (57.5, 177.5); 44	191.0 (130.0, 250.0); 101
U[Citrate], mg/24 h	398 (197, 698); 120	375 (168, 520); 41	732 (522, 963); 101
U[Phos], mg/24 h	824 (552, 1044); 98	1012 (636, 1218); 36	975 (756, 1183); 101

Values are expressed as median (25th, 75th percentiles), followed by number of patients. U_[vol], urinary volume; U_[ox], urinary oxalate; U_[Ca], urinary calcium; U_[Citrate], urinary citrate; U_[Phos], urinary phosphate; PH, primary hyperoxaluria.

^aIncludes both adults and children and thus normalized to 1.73 m² body surface area.

^bIncludes only those aged ≥18 years at the time of collection and are not normalized to body surface area.

^cValues from 101 individuals aged 18–83 years without kidney stones or kidney disease are not normalized to 1.73 m² body surface area.