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Table 3 Daily increase in body weight, energy storage, positive energy balance and energy gap of 2190 children divided in four groups based on BMI status.

From: Quantification of the energy gap in young overweight children. The PIAMA birth cohort study

  BMI status at 2 and 5-7 years of age*
  Normal/Normal
(n = 1868)
Normal/Overweight
(n = 160)
Overweight/Overweight
(n = 59)
Overweight/Normal
(n = 103)
  Median P90 Median P90 Median P90 Median P90
Body weight gain (g/day) 6.2 8.1 9.4 12.4 9.0 12.5 6.1 7.4
Excess weight gain (g/day)    3.2   2.9    
Fat mass (%gained) 6.3 18.5 34.1 41.4 27.5 34.9 0 2.3
Fat free mass (%gained) 93.7 99.7 65.9 74.3 72.5 77.5 100 100
Energy storage (kJ/day) 32.7 52.5 137.3 196.7 112.8 187.4 19.5 27.2
Positive energy balance** (kJ/day)3 65.5 104.9 274.7 393.4 225.6 374.6 39.0 54.4
Energy gap (kJ/day)    209.2 288.5 186.6 320.2   
  1. BMI, body mass index. P90, 90th percentile.
  2. * Classification is based on age and sex specific international BMI cut off points for children[10].
  3. ** Assuming an energetic efficiency of 50%[3].