Table 1.

Comparison of urinary excretion parameters in male and female study participants

Demographic and urinary excretion parameters	Boys (n = 1,167)	Girls (n = 1,167)	Significance (p)
Age (years)	11.30 (3.43–17.31)	11.49 (3.63–17.71)	0.89
Weight (kg)	43.00 (16.00–77.00)	40.00 (16.00–64.00)	<0.001
BMI (kg/m2)	18.47 (14.12–24.45)	18.15 (14.12–23.68)	<0.001
Urine pH	6.29 (5.66–7.03)	6.39 (5.69–7.05)	<0.001
Calcium (mg/kg/24 h)	1.81 (0.75–3.79)	1.83 (0.73–3.41)	0.66
Creatinine (g/24 h)	0.94 (0.28–1.79)	0.72 (0.24–1.28)	<0.001
Citrates (mg/dL)	46.68 (10.87–129.59)	62.17 (18.39–196.45)	<0.001
Citrates (mg/24 h)	400.43 (102.23–1,104.19)	476.51 (141.29–1,261.36)	<0.001
Citrates (mg/g creat/24 h)	509.35 (118.88–1,341.40)	683.06 (242.22–1,671.05)	<0.001
Citrates (mg/kg/24 h)	10.45 (2.53–25.93)	12.84 (4.50–31.46)	<0.001
Citrates (mg/1.73 m2/24 h)	560.81 (142.70–1,346.81)	677.76 (241.72–1,590.76)	<0.001
Calcium/citrates (mg/mg)	0.18 (0.05–0.68)	0.13 (0.04–0.50)	<0.001

Values are presented as the median, with the range (5 %–95 %) given in parenthesis.

BMI Body mass index