Highlighting of Urinary Sodium and Potassium among Indonesian Schoolchildren Aged 9–12 Years: The Contribution of School Food

Table 5

Factors contributing estimated Na and K intake.

Variables	Estimated Na intake				Post hoc tests			Estimated K intake				Post hoc tests
	<1500 mg/d ()	1500–2300 mg/d ()	>2300 mg/d ()					<500 mg/d ()	500–1000 mg/d ()	>1000 mg/d ()
Age (years)	10.18 ± 0.59	10 ± 0.8	10.25 ± 0.84	0.219^1	0.28^2	0.08^3	0.63^4	10.19 ± 0.76	10.05 ± 0.79	10.28 ± 0.75	0.48	0.29	0.28	0.67
Pocket money (Rp)	11800 ± 4479.013.12	12000 ± 6118.82	12015.63 ± 4887.6	0.977	0.86	0.98	0.84	11897.44 ± 5539.91	11661.02 ± 4674.25	13.166.67 ± 5415.12	0.89	0.79	0.28	0.35
BMI z-score	−0.07 ± 1.55	0.61 ± 1.52	1.22 ± 1.61	0.001	0.04	0.04	0.00	0.49 ± 1.62	0.65 ± 1.67	1.65 ± 1.39	0.15	0.59	0.02	0.007
Body weight (kg)	34.3 ± 10.75	37.99 ± 9.52	44.78 ± 12.32	0.001	0.12	0.00	0.00	37.59 ± 10.04	39.96 ± 12.06	49.16 ± 14.18	0.02	0.23	0.003	0.000
Energy of full day food (kcal/d)	1879.29 ± 275.49	1929.57 ± 298.81	1881.02 ± 262.29	0.586	0.39	0.35	0.97	1881.07 ± 290.72	1902.64 ± 272.67	1943.69 ± 237.69	0.49	0.65	0.58	0.39
Energy of school food (kcal)	787.02 ± 70.88	808.31 ± 108.51	827.89 ± 102.86	0.117	0.30	0.29	0.04	798.2 ± 91.08	809.44 ± 101.43	870.71 ± 102.96	0.10	0.51	0.02	0.005

¹ANOVA test; pos hoc test between ²groups 1 and 2, ³groups 2 and 3, and ⁴groups 1 and 3. Significant at .