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

From: Sodium and potassium intakes and adiposity among Iranian pre-adolescents and adolescents: a cross-sectional study

Variables Total (n = 374) Boys (n = 154) Girls (n = 220) P-value
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 - - -