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Table 1 Description of individual’s socio-demographic and lifestyle factors for each wave of the Understanding Society data (N = 404,264 observations from 67,982 individuals)

From: The spatial–temporal effect of air pollution on individuals’ reported health and its variation by ethnic groups in the United Kingdom: a multilevel longitudinal analysis

 

Wave1 (2009–2011)

Wave2 (2010–2012)

Wave3 (2011–2013)

Wave4 (2012–2014)

Wave5 (2013–2015)

Wave6 (2014–2016)

Wave7 (2015–2017)

Wave8 (2016–2018)

Wave9 (2017–2019)

Wave10 (2018–2019)

N = 39,798

N = 50,728

N = 47,651

N = 45,236

N = 42,525

N = 39,777

N = 38,518

N = 36,264

N = 33,141

N = 30,626

Percent

Percent

Percent

Percent

Percent

Percent

Percent

Percent

Percent

Percent

Gender

Male

45

45

46

46

46

46

46

46

45

45

Female

56

55

54

54

54

54

54

55

55

55

Age

Young (< 34)

27

27

26

26

26

26

25

24

23

21

Middle age (34–58)

46

44

44

44

43

44

44

44

43

43

Old (> 58)

27

29

30

30

31

30

31

33

34

35

Ethnicity

British-white

76

77

78

78

78

74

74

75

77

78

Other-white

4

5

5

5

4

6

5

5

5

5

Indian

4

3

3

3

3

4

4

4

4

4

Pakistani/Bangladeshi

5

4

4

4

4

5

5

5

5

5

Black/African/Caribbean

5

4

4

4

4

4

4

4

4

3

Mixed ethnicities

2

1

1

2

2

2

2

2

2

2

Other ethnicities

4

5

5

5

5

5

5

5

4

3

Country of birth

Born in the UK

83

67

67

67

68

67

67

67

68

69

Not born in the UK

17

14

13

13

12

15

15

15

13

12

Missing information

0

20

21

20

20

18

18

18

19

19

Marital status

Married

53

53

53

52

52

53

53

53

54

55

Living as a couple

11

11

11

11

11

11

11

10

10

10

Widowed

6

6

6

6

6

6

6

6

6

6

Divorced/separated

9

8

8

8

8

8

8

8

8

8

Single never married

21

22

22

22

23

23

24

23

23

21

Missing information

0

0

0

0

0

0

0

0

0

0

Education

University degree

30

25

26

27

28

29

30

31

32

34

High school degree

32

26

26

27

27

27

27

27

27

27

Lower educational levels

1

1

1

1

1

1

1

1

1

1

Other qualifications

30

40

40

38

37

36

35

35

34

33

Still a student

7

7

7

7

7

7

7

6

6

5

Occupation

Managers/Professionals/employers

12

12

12

12

12

12

12

12

12

12

Non-manual workers

26

26

26

26

26

27

27

27

26

26

Manual workers

18

18

18

18

19

19

19

18

17

17

Not applicable: Student/ retired/Not working

44

44

44

43

43

41

41

42

42

43

Missing information

0

0

1

1

0

1

1

1

2

3

Housing tenure

Owned outright

29

31

31

32

33

33

34

34

35

36

Owned with mortgage

39

39

39

39

38

37

37

37

37

37

Local authority rent

11

11

10

10

10

9

9

9

8

8

Housing association rent

7

7

7

7

7

7

7

7

6

6

Private rent

13

12

12

11

11

12

12

11

10

10

Other or missing information

1

0

0

1

2

2

1

2

3

3

Perceived financial situation

living comfortably/doing alright

56

57

57

59

60

65

67

70

69

70

living difficultly

40

37

36

33

32

27

26

26

27

28

Missing information

4

6

8

8

8

8

7

5

3

3

Smoking status

non-smoker

70

74

69

68

75

71

79

82

84

85

smoker

19

20

18

18

16

15

15

14

13

13

Missing information

11

6

13

14

8

14

7

4

3

2

Nation

England

84

77

76

77

77

79

79

79

78

79

Wales

5

8

8

8

7

7

6

7

7

7

Scotland

7

9

9

9

9

8

8

8

9

9

Northern Ireland

4

7

7

7

6

6

6

6

7

6