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Table 1 Cohort characteristics

From: Characterisation of an inflammation-related epigenetic score and its association with cognitive ability

 

n

Mean

Median

Range

SD

LBC1936 wave 1

1091

–

–

–

–

 Age (years)

–

69.53

69.54

67.61, 71.29

0.83

 Sex (% female)

49.8

–

–

–

–

 CRP (mg/L)

1054

5.26

3.0

1.5, 90

6.78

 DNAm CRP

894

− 0.019

− 0.019

− 0.024, − 0.015

0.0013

 Genetic score

1005

2.16

2.16

1.23, 2.83

0.25

gf

1070

0.096

0.12

− 3.43, 3.017

1.0091

 BMI (kg/m2)

1083

27.78

27.39

16.023, 48.52

4.36

 Alcohol (units/week)

1063

9.93

6

0, 70

12.12

 Smoking status

894

−

−

−

−

  Current

102

−

−

−

−

  Ex

375

−

−

−

−

  Never

417

−

−

−

−

 SIMD

1083

5342

5342

4, 6505

1907

Generation Scotland

7028

–

  

–

 Age (years)

–

50.89

52.75

18, 93.3

12.96

 Sex (% female)

58.2

–

–

–

–

 CRP (ng/mL)

419

2.65

1.21

0.15, 63.25

5.59

 DNAm CRP

7028

− 0.012

− 0.013

− 0.016, − 0.0089

< 0.001

 Genetic score

7028

2.15

2.17

1.14, 2.91

0.26

gf

6880

0.0063

0.042

− 4.15, 3.89

0.99

 BMI (kg/m2)

6988

26.93

26.15

14.78, 51.29

5.089

 Alcohol (units/week)

6414

10.49

8

0, 73

11.017

 Smoking status

6854

–

–

–

–

  Current

1135

–

–

–

–

  Ex

2167

–

–

–

–

  Never

3552

–

–

–

–

SIMD

6693

3953

4456

3, 6505

1857

  1. LBC1936 Lothian Birth Cohort 1936, CRP C-reactive protein, DNAm DNA methylation, gf general cognitive ability score, SIMD Scottish Index of Multiple Deprivation, BMI body mass index