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Table 3 Descriptives for main variables of interest in DNAm subsamples of SOEP-G and TTP

From: Self-control is associated with health-relevant disparities in buccal DNA-methylation measures of biological aging in older adults

Variable

n

Mean

SD

SOEP-G

Brief Tangney Self-Control Scale (BTS)

333

3.36

0.56

Risk Preference

829

5.58

2.28

Household Income (Euro)

1044

3318.07

1859.59

Household income/persons household

1044

1497.82

827.05

Max education household (years)

1042

13.34

2.76

Age (years)

1058

42.65

21.18

Sex

610 females

  

Self-reported smoking

87 smoke

  

Body Mass Index (BMI)

876

26.73

5.95

Self-reported Disease Severity

797

2.57

0.98

Self-reported Health

797

4.19

0.85

DunedinPACE

1058

1.64

0.11

PhenoAge

1058

99.15

18.81

GrimAge

1058

74.30

15.9

TTP

Attention problems

1159

0.76

0.41

Impulsivity

638

10.72

3.31

Grit

702

26.06

4.30

Household Income (Euro)

733

152,303

266,504

Max education household (years)

819

17.50

2.62

Age (years)

1327

13.46

3.1

Sex

1327

647 females

 

Self-reported smoking

645

58 smokers

 

Body Mass Index (BMI)

1317

20.38

5.02

Pubertal development

1271

2.60

0.92

DunedinPACE

1327

1.14

0.16

PhenoAge

1327

42.78

9.57

GrimAge

1327

43.10

3.56

  1. We compared participants who filled in the BTS to those who did not fill in this questionnaire. Those who filled in the BTS were slightly older and did not smoke, but did not significantly differ on other demographics such as education, income, BMI and gender (see Additional file 1: Table S13). For the demographics separately for older and younger participants (see “Results” section 1), see Additional file 1: Table S14. See Raffington et al. [50] for a discussion on inflated means in buccal DNA-methylation measures of biological aging