Sodium excretion (mg/d) | Sodium excretion | ||||||||
---|---|---|---|---|---|---|---|---|---|
Q1 | Q2 | Q3 | Q4 | p b | ρ (p) c | <2000 mg/d | > = 2000 mg/d | p d | |
Boys (n) | 20 | 21 | 21 | 20 | 8 | 74 | |||
Volume (ml/d)a,b | 775.0 (600.0; 987.5) | 1000.0 (725.0; 1250.0) | 1100.0 (900.0; 1175.0) | 1325.0 (1150.0; 1600.0) | <0.001 | 0.585 (<0.001) | 725.0 (450.0; 900.0) | 1100.0 (900.0; 1300.0) | 0.001 |
Osmolality (mosm/kg)a,b | 677.5 (527.3; 791.3) | 703.0 (547.5; 922.0) | 776.0 (699.5; 847.0) | 761.0 (553.3; 832.8) | 0.337 | 0.150 (0.178) | 704.5 (620.8; 828.8) | 725.0 (565.3; 824.0) | 0.702 |
FWR (ml/d)a,b | −78.0 (−293.2; 349.8) | 29.5 (−341.6; 528.3) | 181.3 (−97.9; 338.3) | 459.9 (79.7; 961.0) | 0.015 | 0.358 (0.001) | −122.9 (−624.8; 189.6) | 226.4 (−108.6; 535.7) | 0.036 |
Risk Hypo-hydration status (%)c | 65.0 | 47.6 | 33.3 | 15.0 | 0.011 | 75.0 | 36.5 | 0.035 | |
Girls (n) | 29 | 30 | 30 | 29 | 26 | 92 | |||
Volume (ml/d)a,b | 775.0 (550.0; 1075.0) | 975.0 (737.5; 1270.0) | 975.0 (767.5; 1312.5) | 1450.0 (1250.0; 1700.0) | <0.001 | 0.512 (<0.001) | 737.5 (537.5; 1012.5) | 1200.0 (800.0; 1487.5) | <0.001 |
Osmolality (mosm/kg)a,b | 589.0 (415.5; 750.5) | 544.0 (397.3; 686.3) | 689.0 (455.5; 793.3) | 572.0 (497.5; 656.0) | 0.201 | 0.113 (0.222) | 564.5 (420.3; 738.8) | 528.0 (458.3; 743.8) | 0.610 |
FWR (ml/d)a,b | 44.6 (−304.2; 517.5) | 304.2 (−134.5; 813.7) | 165.4 (−215.2; 758.0) | 748.2 (509.0; 964.5) | 0.004 | 0.323 (<0.001) | 52.6 (−293.4; 464.2) | 512.0 (−43.4; 867.3) | 0.022 |
Risk Hypo-hydration status (%)c | 44.8 | 30.0 | 36.7 | 13.8 | 0.073 | 46.2 | 27.2 | 0.065 |