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Table 2 Total fatty acid composition (%) of human milk over time of lactation

From: High levels of anti-inflammatory and pro-resolving lipid mediators lipoxins and resolvins and declining docosahexaenoic acid levels in human milk during the first month of lactation

Fatty acid

Time of lactation (days after birth)

R2

P

1-5

6-10

11-15

16-20

21-25

26-30

N=15

N=27

N=23

N=16

N=6

N=7

M

M

M

M

M

M

 

SD

SD

SD

SD

SD

SD

  

C16:0

23.96

20.75

21.96

21.95

21.90

21.92

0.12

0.63

3.47

2.41

2.55

2.59

2.60

4.02

C18:0

6.91

6.06

7.73

7.34

6.85

7.64

0.23

0.37

1.59

1.31

1.90

1.69

0.67

1.36

C20:0

0.17

0.11

0.15

0.14

0.12

0.12

0.36

0.10

0.06

0.03

0.04

0.05

0.03

0.03

C22:0

0.22

0.13

0.15

0.12

0.13

0.17

0.16

0.27

0.18

0.04

0.06

0.04

0.04

0.03

C24:0

0.29

0.17

0.20

0.16

0.14

0.18

0.48

0.011

0.12

0.07

0.10

0.09

0.05

0.05

C16:1

3.35

4.55

3.66

4.30

4.27

3.67

0.02

0.74

0.87

1.35

1.17

1.81

1.21

0.89

C18:1

46.29

48.21

45.76

44.92

46.26

43.96

0.46

0.51

5.42

3.94

5.28

3.80

5.17

2.50

C18:2

14.42

16.10

16.58

17.16

16.72

18.43

0.83

0.13

3.09

3.24

3.97

3.37

3.45

2.80

γC18:3

0.09

0.10

0.10

0.11

0.11

0.13

0.81

0.040

0.03

0.02

0.04

0.04

0.02

0.02

C20:4 (AA)

2.09

1.82

1.56

1.79

1.49

1.48

0.73

0.094

0.96

0.91

0.62

0.83

0.41

0.49

αC18:3

1.07

1.04

1.41

1.34

1.47

1.82

0.85

0.0024

0.44

0.23

0.62

0.58

0.33

0.48

C20:5 (EPA)

0.08

0.06

0.06

0.07

0.07

0.07

0.06

0.77

0.02

0.02

0.03

0.01

0.02

0.01

C22:6 (DHA)

1.15

0.99

0.79

0.71

0.59

0.56

0.96

<0.0001

0.42

0.33

0.25

0.32

0.11

0.22

n6/n3

7.58

8.92

8.31

9.47

8.81

8.27

0.12

0.59

 

1.73

2.40

1.50

3.11

2.53

1.00

  
  1. M, mean % of total fatty acids; SD, standard deviation; R2, coefficient of determination of linear trendline; P, p-value for linear trend (ANOVA)