Table 2 Macronutrient and energy content in preterm and term human milk (n = 45) during the daytime

Protein, g/100 mL

\( \overline{x}\pm s \)

1.37 ± 0.2

1.43 ± 0.2

1.37 ± 0.2

1.41 ± 0.2

1.37 ± 0.2

1.37 ± 0.2

1.43 ± 0.2

1.41 ± 0.2

1.43 ± 0.2

1.37 ± 0.2

1.41 ± 0.2

1.37 ± 0.2

p value

< 0.001^**

0.02^*

0.90

0.24

0.001^*

0.02^*

Cohen’s d

0.30^a

0.20^a

0

0.10

0.30^a

0.20^a

Fat, g/100 mL

\( \overline{x}\pm s \)

4.06 ± 0.9

4.39 ± 1.1

4.06 ± 0.9

4.57 ± 1

4.06 ± 0.9

4.00 ± 0.7

4.39 ± 1.1

4.57 ± 1.0

4.39 ± 1.1

4.00 ± 0.7

4.57 ± 1.0

4.00 ± 0.7

p value

0.04^*

0.001^*

0.65

0.28

0.02^*

< 0.001^**

Cohen’s d

0.33^a

0.50^b

0.07

0.17

0.42^a

0.66^b

Carbohydrate, g/100 mL

\( \overline{x}\pm s \)

7.39 ± 0.2

7.33 ± 0.3

7.39 ± 0.2

7.33 ± 0.2

7.39 ± 0.2

7.37 ± 0.2

7.33 ± 0.3

7.33 ± 0.2

7.33 ± 0.3

7.37 ± 0.2

7.33 ± 0.2

7.37 ± 0.2

p value

0.12

0.14

0.40

0.88

0.27

0.22

Cohen’s d

0.24^a

0.24^a

0.08

0

0.16

0.20^a

Energy, kcal/ 100 mL

\( \overline{x}\pm s \)

74.42 ± 9.1

77.58 ± 10.0

74.42 ± 9.1

79.18 ± 9.7

74.42 ± 9.1

73.89 ± 6.8

77.58 ± 10.0

79.18 ± 9.7

77.58 ± 10.0

73.89 ± 6.8

79.18 ± 9.7

73.89 ± 6.8

p value

0.03^*

< 0.001^**

0.59

0.29

0.01^*

< 0.001^**

Cohen’s d

0.33^a

0.51^b

0.07

0.16

0.43^a

0.63^b