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Table 4 Results from restricted cubic splines partial least squares regression analysis with 1 or 2 components: Exam yea r is a dummy variable (1996 coded 0 versus 2006 coded 1); restricted cubic splines create 4 variables for each of Ages and Birthyr.

From: Unravelling the effects of age, period and cohort on metabolic syndrome components in a Taiwanese population using partial least squares regression

 

Men (1-comp)

Men (2-comp)

Women (1-comp)

Women (2-comp)

 

Coef

95%CIs

Coef

95%CIs

Coef

95%CIs

Coef

95%CIs

FPG

        

Exam year

-1.45

(-2.14 to -0.75)

-4.24

(-5.26 to -3.23)

0.28

(0.00 to 0.56)

1.37

(0.54 to 2.21)

Ages_1

0.05

(0.03 to 0.06)

0.00

(-0.05 to 0.04)

0.03

(0.03 to 0.04)

0.05

(0.03 to 0.07)

Ages_2

0.05

(0.03 to 0.06)

0.00

(-0.03 to 0.03)

0.03

(0.03 to 0.04)

0.04

(0.03 to 0.05)

Ages_3

0.10

(0.06 to 0.14)

0.00

(-0.06 to 0.05)

0.07

(0.06 to 0.09)

0.09

(0.07 to 0.11)

Ages_4

0.24

(0.12 to 0.37)

-0.03

(-0.14 to 0.08)

0.18

(0.15 to 0.22)

0.22

(0.16 to 0.27)

Birthyr_1

-0.07

(-0.10 to -0.05)

-0.10

(-0.14 to -0.05)

-0.02

(-0.03 to -0.02)

-0.01

(-0.02 to 0.00)

Birthyr_2

-0.07

(-0.09 to -0.04)

-0.09

(-0.11 to -0.06)

-0.02

(-0.03 to -0.01)

-0.01

(-0.03 to 0.00)

Birthyr_3

-0.31

(-0.45 to -0.18)

-0.38

(-0.55 to -0.20)

-0.09

(-0.13 to -0.05)

-0.04

(-0.12 to 0.04)

Birthyr_4

-1.18

(-1.76 to -0.60)

-1.29

(-2.24 to -0.34)

-0.32

(-0.50 to -0.14)

-0.09

(-0.42 to 0.24)

SBP

        

Exam year

-0.18

(-0.43 to 0.07)

-0.51

(-1.39 to 0.37)

-0.76

(-1.19 to -0.33)

-3.85

(-5.99 to -1.70)

Ages_1

0.01

(-0.03 to 0.05)

-0.01

(-0.08 to 0.06)

0.04

(0.03 to 0.04)

-0.01

(-0.05 to 0.04)

Ages_2

0.02

(-0.04 to 0.08)

0.03

(-0.06 to 0.11)

0.05

(0.04 to 0.06)

0.06

(0.04 to 0.09)

Ages_3

0.05

(-0.08 to 0.19)

0.09

(-0.09 to 0.26)

0.11

(0.09 to 0.13)

0.16

(0.11 to 0.21)

Ages_4

0.15

(-0.21 to 0.52)

0.29

(-0.13 to 0.71)

0.29

(0.25 to 0.33)

0.45

(0.31 to 0.59)

Birthyr_1

-0.01

(-0.04 to 0.02)

0.00

(-0.03 to 0.02)

-0.05

(-0.06 to -0.04)

-0.08

(-0.11 to -0.05)

Birthyr_2

0.00

(-0.01 to 0.02)

0.02

(-0.01 to 0.05)

-0.04

(-0.05 to -0.02)

-0.02

(-0.04 to 0.01)

Birthyr_3

0.01

(-0.04 to 0.07)

0.12

(-0.08 to 0.31)

-0.15

(-0.21 to -0.09)

0.06

(-0.11 to 0.24)

Birthyr_4

0.06

(-0.12 to 0.25)

0.42

(-0.44 to 1.29)

-0.54

(-0.77 to -0.30)

0.55

(-0.19 to 1.28)

DBP

        

Exam year

-0.73

(-0.89 to -0.58)

-1.97

(-2.40 to -1.53)

-1.04

(-1.55 to -0.53)

-3.28

(-4.38 to -2.18)

Ages_1

0.03

(0.02 to 0.04)

0.01

(-0.01 to 0.03)

0.02

(0.01 to 0.03)

-0.02

(-0.04 to 0.01)

Ages_2

0.03

(0.02 to 0.04)

0.00

(-0.01 to 0.01)

0.02

(0.02 to 0.03)

0.00

(-0.02 to 0.01)

Ages_3

0.05

(0.03 to 0.08)

0.00

(-0.03 to 0.02)

0.05

(0.05 to 0.06)

0.00

(-0.02 to 0.03)

Ages_4

0.14

(0.06 to 0.21)

-0.02

(-0.08 to 0.03)

0.14

(0.12 to 0.16)

0.01

(-0.05 to 0.07)

Birthyr_1

-0.04

(-0.05 to -0.03)

-0.05

(-0.07 to -0.04)

-0.04

(-0.05 to -0.03)

-0.06

(-0.07 to -0.05)

Birthyr_2

-0.04

(-0.05 to -0.03)

-0.05

(-0.06 to -0.04)

-0.04

(-0.05 to -0.03)

-0.04

(-0.06 to -0.03)

Birthyr_3

-0.19

(-0.26 to -0.12)

-0.24

(-0.36 to -0.12)

-0.18

(-0.23 to -0.12)

-0.18

(-0.26 to -0.10)

Birthyr_4

-0.74

(-1.09 to -0.38)

-0.92

(-1.64 to -0.20)

-0.66

(-0.89 to -0.43)

-0.62

(-0.95 to -0.28)

BMI

        

Exam year

0.36

(0.17 to 0.55)

0.98

(0.85 to 1.10)

-0.30

(-0.40 to -0.20)

-1.32

(-1.60 to -1.03)

Ages_1

0.01

(0.01 to 0.02)

0.02

(0.02 to 0.03)

0.01

(0.01 to 0.01)

0.01

(0.01 to 0.01)

Ages_2

0.01

(0.00 to 0.01)

0.01

(0.00 to 0.01)

0.01

(0.01 to 0.01)

0.01

(0.01 to 0.01)

Ages_3

0.01

(0.01 to 0.02)

0.00

(-0.01 to 0.01)

0.02

(0.02 to 0.02)

0.01

(0.00 to 0.01)

Ages_4

0.03

(0.01 to 0.05)

-0.01

(-0.04 to 0.01)

0.05

(0.04 to 0.05)

0.00

(-0.01 to 0.01)

Birthyr_1

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.01)

-0.01

(-0.01 to -0.01)

-0.01

(-0.01 to -0.01)

Birthyr_2

0.00

(-0.01 to 0.00)

0.00

(0.00 to 0.00)

-0.02

(-0.02 to -0.02)

-0.03

(-0.03 to -0.02)

Birthyr_3

-0.02

(-0.04 to -0.01)

-0.01

(-0.05 to 0.02)

-0.12

(-0.13 to -0.10)

-0.07

(-0.09 to -0.04)

Birthyr_4

-0.10

(-0.18 to -0.02)

-0.11

(-0.31 to 0.10)

-0.47

(-0.61 to -0.33)

0.49

(-0.13 to 1.11)

TG

        

Exam year

-1.27

(-2.76 to 0.23)

-0.05

(-2.23 to 2.13)

-2.32

(-3.32 to -1.31)

-7.62

(-9.39 to -5.85)

Ages_1

0.24

(-0.03 to 0.52)

0.28

(0.23 to 0.32)

0.13

(0.10 to 0.16)

0.06

(0.01 to 0.10)

Ages_2

0.13

(-0.16 to 0.42)

-0.13

(-0.16 to -0.09)

0.14

(0.12 to 0.16)

0.08

(0.05 to 0.12)

Ages_3

0.20

(-0.38 to 0.78)

-0.51

(-0.64 to -0.38)

0.30

(0.26 to 0.34)

0.19

(0.11 to 0.28)

Ages_4

0.36

(-1.00 to 1.72)

-1.83

(-2.27 to -1.40)

0.78

(0.69 to 0.87)

0.51

(0.29 to 0.74)

Birthyr_1

-0.23

(-0.44 to -0.03)

-0.23

(-0.26 to -0.20)

-0.17

(-0.20 to -0.13)

-0.22

(-0.26 to -0.19)

Birthyr_2

-0.29

(-0.44 to -0.13)

-0.44

(-0.49 to -0.39)

-0.15

(-0.19 to -0.11)

-0.18

(-0.24 to -0.12)

Birthyr_3

-1.53

(-2.21 to -0.84)

-2.52

(-3.19 to -1.84)

-0.69

(-0.90 to -0.48)

-0.73

(-1.08 to -0.37)

Birthyr_4

-6.10

(-8.48 to -3.72)

-10.16

(-13.80 to -6.53)

-2.59

(-3.45 to -1.72)

-2.41

(-3.93 to -0.88)

HDL

        

Exam year

1.79

(0.59 to 2.99)

3.16

(1.47 to 4.84)

8.02

(2.95 to 13.09)

12.06

(10.39 to 13.74)

Ages_1

0.00

(-0.03 to 0.02)

0.04

(0.00 to 0.07)

0.05

(0.02 to 0.08)

0.00

(-0.02 to 0.02)

Ages_2

0.00

(-0.01 to 0.02)

0.04

(0.03 to 0.06)

0.05

(0.02 to 0.07)

0.00

(-0.02 to 0.02)

Ages_3

0.01

(-0.02 to 0.04)

0.09

(0.06 to 0.13)

0.10

(0.05 to 0.15)

0.00

(-0.05 to 0.06)

Ages_4

0.03

(-0.04 to 0.09)

0.24

(0.16 to 0.32)

0.25

(0.12 to 0.37)

0.00

(-0.18 to 0.18)

Birthyr_1

0.05

(0.03 to 0.06)

0.04

(0.03 to 0.06)

-0.05

(-0.08 to -0.02)

0.00

(-0.02 to 0.02)

Birthyr_2

0.05

(0.03 to 0.07)

0.05

(0.04 to 0.07)

-0.09

(-0.17 to -0.01)

0.00

(-0.07 to 0.08)

Birthyr_3

0.29

(0.18 to 0.40)

0.31

(0.23 to 0.39)

-0.80

(-1.42 to -0.18)

-0.07

(-0.64 to 0.50)

Birthyr_4

1.17

(0.73 to 1.61)

1.29

(0.97 to 1.62)

-5.80

(-10.19 to -1.42)

-2.31

(-7.51 to 2.89)

LDL

        

Exam year

1.62

(-5.73 to 8.96)

10.45

(-27.47 to 48.38)

0.15

(-4.56 to 4.86)

-0.12

(-21.55 to 21.30)

Ages_1

0.13

(-0.13 to 0.39)

0.29

(-0.45 to 1.04)

0.11

(0.08 to 0.14)

0.12

(0.02 to 0.22)

Ages_2

0.10

(-0.04 to 0.24)

0.08

(-0.02 to 0.18)

0.12

(0.09 to 0.15)

0.13

(0.06 to 0.20)

Ages_3

0.19

(-0.05 to 0.43)

0.05

(-0.15 to 0.25)

0.26

(0.21 to 0.31)

0.28

(0.18 to 0.38)

Ages_4

0.45

(-0.02 to 0.91)

-0.16

(-1.49 to 1.16)

0.67

(0.56 to 0.78)

0.73

(0.54 to 0.91)

Birthyr_1

-0.07

(-0.12 to -0.02)

0.00

(-0.27 to 0.27)

-0.11

(-0.14 to -0.08)

-0.12

(-0.22 to -0.02)

Birthyr_2

-0.08

(-0.17 to 0.02)

-0.08

(-0.18 to 0.02)

-0.18

(-0.22 to -0.13)

-0.16

(-0.27 to -0.05)

Birthyr_3

-0.40

(-0.99 to 0.20)

-0.57

(-1.71 to 0.57)

-1.22

(-2.02 to -0.42)

-0.83

(-4.83 to 3.16)

Birthyr_4

-1.61

(-4.36 to 1.14)

-2.63

(-9.70 to 4.43)

-6.38

(-15.05 to 2.28)

-2.57

(-47.86 to 42.72)

UA

        

Exam year

-0.04

(-0.08 to 0.00)

-0.16

(-0.24 to -0.08)

-0.17

(-0.27 to -0.06)

-0.22

(-0.37 to -0.07)

Ages_1

0.00

(0.00 to 0.00)

0.00

(-0.01 to 0.00)

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.00)

Ages_2

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.00)

Ages_3

-0.01

(-0.01 to 0.00)

-0.01

(-0.01 to 0.00)

0.01

(0.01 to 0.01)

0.01

(0.01 to 0.01)

Ages_4

-0.01

(-0.02 to -0.01)

-0.02

(-0.02 to -0.01)

0.03

(0.02 to 0.03)

0.03

(0.02 to 0.03)

Birthyr_1

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.00)

Birthyr_2

0.00

(0.00 to 0.00)

0.00

(0.00 to 0.00)

0.01

(0.00 to 0.01)

0.01

(0.01 to 0.01)

Birthyr_3

0.01

(0.00 to 0.01)

0.00

(-0.01 to 0.01)

0.06

(0.02 to 0.10)

0.06

(0.01 to 0.10)

Birthyr_4

0.02

(0.00 to 0.03)

0.00

(-0.03 to 0.03)

0.36

(0.14 to 0.58)

0.29

(-0.20 to 0.79)

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BMC Medical Research Methodology

ISSN: 1471-2288

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