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Table 3 Analytical data by group.

From: The effects of varying protein and energy intakes on the growth and body composition of very low birth weight infants

   Mean ± SD p
Urea (mg/dl) A 9.0 ± 1.9 0.032
  B 12.0 ± 6.6  
  C 17.2 ± 8.5  
Protein (g/l) A 44.0 ± 2.0 0.755
  B 45.6 ± 5.6  
  C 46.9 ± 6.7  
Ammonia (mcg/dl) A 114.4 ± 44.1 0.445
  B 112.3 ± 30.0  
  C 128.8 ± 28.5  
Triglycerides (mg/dl) A 106.5 ± 58.9 0.930
  B 76.8 ± 16.3  
  C 72.7 ± 25.6  
Cholesterol (mg/dl) A 102.9 ± 20.6 0.422
  B 115.1 ± 21.1  
  C 107.0 ± 21.4  
pH A 7.38 ± 0.07 0.289
  B 7.39 ± 0.02  
  C 7.36 ± 0.05  
Base excess (mmol/l) A -0.14 ± 3.2 0.911
  B 0.23 ± 2.9  
  C -0.38 ± 4.1  
  1. Number of patients in each group: 8 in A, 12 in B and 12 in C.
  2. One measurement was performed on one occasion for each patient in the 3rd week of the study.