Table 3 Weighted Logistic Regressions examining Associations between Socioeconomic Status and Age with Physical Activity; KNHANES, VI (n = 5065)

Model 1

OR

CI

p-value

Adjusted OR

CI

p-value

Household Income

 Upper

1.00

n/a

n/a

1.00

n/a

n/a

 Moderate

0.92

0.75–1.14

0.47

1.01

0.80–1.29

0.89

 Moderate-low

0.83

0.69–0.99

0.04

1.08

0.87–1.35

0.47

 Low

0.58

0.47–0.71

< 0.01

0.80

0.59–1.10

0.17

 College graduate

1.00

n/a

n/a

1.00

n/a

n/a

 High school graduate

1.00

0.85–1.19

0.99

1.12

0.91–1.36

0.28

 Middle school graduate

0.61

0.48–0.77

< 0.01

0.83

0.62–1.11

0.21

 Elementary school graduate

0.40

0.33–0.49

< 0.01

0.70

0.52–0.93

0.02

 Younger (Age < 45)

1.00

n/a

n/a

1.00

n/a

n/a

 Older (Age ≥ 45)

0.54

0.46–0.62

< 0.01

0.75

0.63–0.89

< 0.01

Model 2: SES*Age Interaction

OR

CI

p-value

Adjusted OR

CI

p-value

Household Income

 Younger upper

1

n/a

n/a

1.00

n/a

n/a

 Younger moderate

1.28

1.11–1.48

0.08

1.15

0.84–1.58

0.38

 Younger moderate-low

1.21

0.97–1.51

0.79

1.41

1.02–1.97

0.04

 Younger low

0.92

0.42–0.94

0.3

1.10

0.57–2.13

0.77

 Older upper

0.93

0.75–1.16

0.55

1.22

0.90–1.66

0.20

 Older moderate

0.67

0.49–0.91

0.01

1.07

0.88–1.30

0.19

 Older moderate-low

0.67

0.30–1.53

0.34

1.02

0.88–1.18

0.01

 Older low

0.76

0.24–2.43

0.65

0.79

0.44–1.42

0.15

 Younger college graduate

1.00

n/a

n/a

1.00

n/a

n/a

 Younger high school graduate

1.21

0.97–1.51

0.08

1.14

0.88–1.47

0.34

 Younger middle school graduate

0.90

0.42–1.94

0.79

1.59

0.63–3.98

0.32

 Younger elementary school graduate

0.54

0.17–1.74

0.30

0.76

0.19–3.07

0.70

 Older college graduate

0.93

0.75–1.16

0.55

1.08

0.82–1.42

0.57

 Older high school graduate

0.77

0.65–0.89

0.01

1.15

0.39–1.57

0.73

 Older middle school graduate

0.57

0.20–1.59

0.35

0.81

0.54–1.18

0.13

 Older elementary school graduate

0.39

0.01–15.07

0.65

0.73

0.01–45.6

0.86