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Table 2 Baseline laboratory data of the obese children and non-obese controls

From: Serum trace elements in obese Egyptian children: a case–control study

  Obese children (n = 80) Controls (n = 80) P
Serum zinc (ug/dl) 57 ± 14 75 ± 17 <0.01a
Serum copper (ug/dl) 123.7 ± 28 96.4 ± 23 <0.01a
Serum selenium (ug/L) 63.6 ± 15 78.3 ± 18 <0.01a
Serum iron (ug/dl) 46.8 ± 11 63.5 ± 13 <0.01a
Serum ferritin (ng/ml) 68.5 ± 11.2 71.6 ± 10.6 >0.05a
Serum chromium (ng/ml) 0.2 ± 0.08 0.18 ± 0.05 >0.05a
Triglycerides (mg/dl) (294–68)173 (155–45)83 <0.01c
Total cholesterol (mg/dl) (312–105)183 (178–67)98 <0.01c
LDL- cholesterol (mg/dl) (228–43)97 (105–39)73 <0.01c
HDL- cholesterol (mg/dl) (72–17)33 (91–40)56 <0.01c
Fasting glucose (mg/dl) 93.5 ± 8.3 81.5 ± 7.7 <0.01a
Fasting insulin (uU/ml) 13.8 ± 1.2 6.3 ± 0.8 <0.01a
HOMA-IR 3.1 ± 0.8 1.3 ± 0.5 <0.01a
Serum leptin (ng/mL) 25.6 ± 3.2 9.3 ± 1.5 <0.01a
  1. LDL, low density lipoprotein; HDL, High density lipoprotein; HOMA-IR, homeostasis model assessment of insulin resistance. Values are mean ± standard deviations or median (minimum- maximum). P value < 0.05 indicates a significant difference. aStudent’s t-test. cMann–Whitney u test.