Table 6.

Micronutrients serum levels among thin children according to age group

Variables	6–9 years	10–13 years	>13 years	P
Serum iron (9.0–30.4 umol/L)	16.4 [22.23–12.63]	18.8 [23.5–12.8]	17.1 [23.7–11.35]	* 0.394
Serum ferritin (22–275 ug/L)	28.85 [48.95–16.05]	30.4 [48.9–19.9]	27.5 [54.25–17.1]	* 0.726
Serum vitamin D (50–350 nmol/L)	42.5 [48.53–33.58]	37.4 [48.7–29.2]	29.5 [40.2–23.05]	* 0.001
Serum copper (13.2–21.4 μmol/L)	34.45 [44.73–26.98]	29.3 [36.2–22.35]	25.3 [33.6–15.9]	* 0.014
Serum zinc (9.7–18.9 μmol/L)	22 [27.23–16.48]	20.9 [23.83–16.63]	20.5 [27.3–15.8]	* 0.354
Serum selenium (0.8–1.9 umol/L)	1 [1.6–0.7]	1.4 [1.7–1.1]	1.35 [1.8–1.03]	* 0.036

^* Kruskal- Wallis; P<0.05 was considered statistically significant