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Table 2 Comparison between measured composition of OMM and data from a meta-analysis [15]

From: The fortification method relying on assumed human milk composition overestimates the actual energy and macronutrient intakes in very preterm infants

Postnatal day

Measured energy (Kcal/100 mL)

Reporte denergy (Kcal/100 mL)

Measured protein (g/100 mL)

Reported protein (g/100 mL)

Measured fat (g/100 mL)

Reported fat (g/100 mL)

Measured carbohydrate (g/100 mL)

Reported carbohydrate (g/100 mL)

Day 1–3

Mean (SD)

N = 73

61.0 (14.00)

N = 143

58.80 (7.91)

N = 73

1.84** (0.53)

N = 163

2.57 (1.44)

N = 73

3.01* (1.15)

N = 173

2.52 (0.98)

N = 73

6.25 (1.52)

N = 143

6.2 (0.92)

Day 4–7

Mean (SD)

N = 96

64.5 (10.49)

N = 96

67.9 (14.1)

N = 96

1.89* (0.49)

N = 44

2.11 (0.44)

N = 96

3.34 (1.11)

N = 110

3.31 (1.27)

N = 96

6.34 (1.54)

N = 87

6.17 (0.49)

Week 2

Mean (SD)

N = 157

62.0** (11.75)

N = 417

69.1 (10.1)

N = 157

1.70** (0.50)

N = 383

1.98 (0.68)

N = 157

3.19 (1.00)

N = 426

3.19 (1.04)

N = 157

6.32** (1.93)

N = 389

6.72 (0.46)

Week 3–4

Mean (SD)

N = 203

63.9** (9.62)

N = 481

70.87 (9.34)

N = 203

1.61 (0.46)

N = 528

1.6 (0.5)

N = 203

3.32** (0.87)

N = 485

3.83 (1.01)

N = 203

6.53** (1.26)

N = 464

7.05 (0.51)

Week 5–6

Mean (SD)

N = 84

67.6** (7.92)

N = 354

73.97 (9.1)

N = 84

1.55* (0.60)

N = 330

1.43 (0.25)

N = 84

3.63* (1.00)

N = 371

4.04 (0.91)

N = 84

6.71** (1.42)

N = 354

7.14 (0.36)

Week 7–9

Mean (SD)

N = 42

64.4** (9.81)

N = 239

74.24 (8.77)

N = 42

1.18** (0.23)

N = 223

1.34 (0.2)

N = 42

3.63* (0.85)

N = 236

4.21 (0.92)

N = 42

6.40** (1.16)

N = 235

7.13 (0.38)

  1. t test; * p < 0.001; ** p < 0.0001 Abbreviations: OMM own mother’s milk