Table 2.

Micronutrients serum levels among normal and thin children

Variables	Thin children (n=182)	Normal BMI children (n=393)	OR [95% C.I.]	P
Age (yrs)	11.01±2.65	10.66±2.48	1.031 [0.907-1.173]	‡ 0.639
Gender M/F	105 (57.7%)/77 (42.3%)	210 (53.4%)/183 (46.6%)	0.96 [0.941–0.103]	χ 0.681
Mean z-score BMI for height	−2.17±0.55	−0.26±0.76	0.03 [0.001–0.222]	‡ <0.001
Mean z-score height for age	−1.74±0.95	−0.66±0.79	0.006 [0.0003–0.111]	‡ <0.001
Serum iron (9.0 – 30.4 umol/L)	16.6±6.5	16.14±6.3	0.997 [0.955–1.041]	‡ 0.899
Serum ferritin (22-275 ug/L)	47±71.6	54±119	0.998 [0.992–1.004]	‡ 0.471
Serum vitamin D (50-350 nmol/L)	33±10	40.6±12.6	1.006 [0.984–1.029]	‡ 0.590
Serum copper (13.2 – 21.4 μmol/L)	32±12.2	32.6±11.4	1.012 [0.983–1.043]	‡ 0.418
Serum zinc (9.7 –18.9 μmol/L)	22.2±8.2	22.8±9.1	0.995 [0.961–1.03]	‡ 0.773
Serum selenium (0.8 – 1.9 umol/L)	1.32±0.48	1.4±0.56	1.628 [0.933–2.84]	‡ 0.086

Data presented as mean ± standard deviation, or n (%) as appropriate. ^χ Chi-square test of significance; ^‡ Independent sample t-test; P<0.05 was considered statistically significant