Table 1 Personal characteristics of the study population and twenty-four-hour urine data by sex

Age (year)

14.4 ± 2.09

13.8 ± 1.96

14.8 ± 2.10

 < 0.001

Body fat (%)

24.99 ± 9.65

20.11 ± 9.04

28.30 ± 8.60

 < 0.001

Adiposity n (%)

93 (24.9)

43 (11.5)

50 (13.4)

0.16

Weight (kg)

53.2 (14.20)

54.20 (16.90)

52.57 (11.98)

0.27

24-h urinary sodium (mg/d)

3130 ± 2200

3540 ± 2440

2840 ± 1980

0.004

Salt intake (gr)

7.961 ± 5.596

9.004 ± 6.206

7.223 ± 5.036

0.004

24-h urinary potassium (mg/d)

1480 ± 1050

1700 ± 1200

1320 ± 890

0.001

24-h creatinine (mg/kg)

0.14 ± 0.08

0.15 ± 0.08

0.12 ± 0.07

0.001

24-h volume (ml)

920 ± 380

950 ± 380

900 ± 380

0.18

Energy intake (Kcal)

1676 ± 301

1759 ± 327

1619 ± 267

 < 0.001

SSB intake (ml)

43.73 ± 42.05

44.70 ± 41.49

43.05 ± 42.51

0.71

Physical activity n (%)

Low

136 (36.36)

39 (25.32)

97 (44.09)

 < 0.001

Medium

238 (63.64)

115 (74.68)

123 (55.91)

High

-

-

-