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Table 1 Descriptive characteristics of intracranial CNS tumor cases and matched controls. Denmark, 1989–2014

From: Intracranial tumors of the central nervous system and air pollution – a nationwide case-control study from Denmark

 

CASES

CONTROLS

TOTAL

21,057

37,368

Individual level factors:

FEMALE

53%

54%

Age at index datea

 median

62

63

 10th pctl

39

39

 90th pctl

80

80

Region of origin

0

 Denmark

96%

95%

 Non-Western

2%

2%

 Western

3%

3%

Marital status

 Living together

61%

59%

 Previously married

25%

26%

 Never married

14%

14%

Occupational status

 Unemployed

4%

4%

 Low skill level

23%

22%

 Medium skill level

16%

16%

 High skill level

8%

8%

 Retired

49%

50%

Disposable income (dKK)

 Median

125,757

122,812

 10th pctl

61,311

58,995

 90th pctl

254,411

254,053

At least 2 prescriptions within a year (data only available since 1996)

 Non-aspirin NSAID

28%

27%

 Aspirin

12%

13%

 Antidiabetics

4%

4%

 HRT

13%

12%

 Allergy medication

8%

8%

Parish level factors:

% of population with only basic education

  Median

27

27

  10th pctl

15

15

  90th pctl

41

42

% of population in manual labor

  Median

29

29

  10th pctl

18

18

  90th pctl

38

38

% of population retired

  Median

6

6

  10th pctl

3

3

  90th pctl

11

11

% of population unemployed

  median

4

4

  10th pctl

1

1

  90th pctl

8

8

% of population in 1st income quartile

  Median

10

10

  10th pctl

5

5

  90th pctl

18

18

% of population in social housing

  Median

13

13

  10th pctl

0

0

  90th pctl

43

43

% of population owning own dwelling

  Median

65

66

  10th pctl

29

30

  90th pctl

92

92

% single parent families

  Median

5

5

  10th pctl

3

3

  90th pctl

7

7

% of population of Danish origin

  Median

94

95

  10th pctl

84

85

  90th pctl

98

98

% of population previously convicted

  Median

0

0

  10th pctl

0

0

  90th pctl

1

1

  1. a: index date = date of diagnosis of matched case