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Table 1 Demographic and clinical characteristics of studied groups

From: Hypoxia and oxidative stress markers in pediatric patients undergoing hemodialysis: cross section study

Parameters Controls (n= 20) Patients (n= 40) Significance P<
Age (years) 12.10 ± 2.59 12.83 ± 1.89 0.126
  6.00 - 15.00 6.00 - 15.00  
Gender    
Male 10 (50.00%) 25 (62.50%)  
Female 10 (50.00%) 15 (37.50%)  
Time on hemodialysis (years) - 2.18 ± 1.36 -
   1.00 - 7.00  
Hemoglobin (gram/dL) 11.50 ± 0.94 9.35 ± 0.85 0.001
  10.00 - 12.90 8.70 - 11.60  
Creatinine (μmol/L) 93.6 ± 22.41 468.00 ± 177.55 0.001
  58.00 - 127.00 157.00 - 750.00  
Urea (mg/dL) 22.90 ± 5.64 196.10 ± 23.50 0.001
  15.00 - 32.00 150.00 - 229.00  
pH 7.39 ± 0.02 7.32 ± 0.02 0.001
  7.35 - 7.40 7.30 - 7.35  
PCO 2 (mmHg) 38.95 ± 1.10 31.74 ± 6.92 0.001
  37.00 - 40.00 18.20 - 43.10  
PO 2 (mmHg) 87.59 ± 11.5 112.56 ± 24.35 0.001
  88.00 - 96.00 87.00 - 169.00  
HCO 3 - (μmol/L) 22.90 ± 0.64 15.66 ± 4.13 0.001
  22.00 - 24.00 8.10 - 21.20  
  1. Data are express as mean ± SD minimum - maximum or number (%); significance versus controls.