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Table 2 Laboratory data of patients and controls

From: Zinc, ferritin, magnesium and copper in a group of Egyptian children with attention deficit hyperactivity disorder

ITEM Patients no = 58 Controls no = 25 p-value
Hb (gm/dl) Range 9.3-13.3 9.9-14.7 0.04*
  Mean ± SD 11.8 ± 1.1 12.4 ± 0.9  
Zinc (μg/dl). Range 40-180 40-243 0.04*
  Mean ± SD 97.5 ± 29.4 117.4 ± 60.2  
Ferritin (μg/dl). Range 3-65 7-72 0.03*
  Mean ± SD 24.8 ± 14.1 32.6 ± 18.7  
Mg (mEq/L). Range 0.7-3.5 0.9-4.3 0.02*
  Mean ± SD 1.7 ± 0.8 2.2 ± 0.9  
Copper (μg/dl). Range 22-120 23-129 0.9
  Mean ± SD 45.4 ± 26.3 45.8 ± 23.05  
  1. * = significant