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Table 1 Association between relative amount of arachidonic acid (dependent variable) and oleic acid (independent variable under investigation), as influenced by other fatty acids, linear regression

From: Percentage oleic acid is inversely related to percentage arachidonic acid in total lipids of rat serum

Model

B (SE)

Beta

t

p

1

No adjustment

-1.39(0.13)

-0.89

-11.1

<0.001

2

Model 4 + % 18:0

-1.33 (0.14)

-0.85

-9.6

<0.001

3

Model 2 + % 16:0

-1.17 (0,15)

-0.75

-8.0

<0.001

4

Model 3 + % 16:1

-1.33 (0.16)

-0.85

-8.2

<0.001

5

Model 4 + % 18:0

-1.06 (0.19)

-0.67

-5.6

<0.001

6

Model 5 + % 18:2

-0.93 (0.04)

-0.59

-25.0

<0.001

7

Model 6 + % 18:3

-0.91 (0.04)

-0.58

-24.9

<0.001

8

Model 7 + % 20:1

-0.92 (0.04)

-0.58

-24.7

<0.001

9

Model 8 + % 20:2

-0.89 (0.04)

-0.57

-24.5

<0.001

10

Model 9 + % 20:5

-0.89 (0.04)

-0.56

-23.9

<0.001

11

Model 10 + % 22:6

-0.98 (0.02)

-0.63

-49.0

<0.001

  1. Dependent variable = % 20:4, n-6. B = unstandardized regression coefficient, Beta = standardized coefficient. Model 1 is without adjustment; Model 2 with adjustment for % 14:0; Model 3 = Model 2 + % 16:0; Model 4 = Model 3 + % 16:1; Model 5 = Model 4 + % 18:0; Model 6 = Model 5 + % 18:2; Model 7 = Model 6 + % 18:3; Model 8 = Model 7 + % 20:1; Model 9 = Model 8 + % 20:2; Model 10 = Model 9 + % 20:5; Model 11 = Model 10 + % 22:6.