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Table 1 Population characteristics by aircraft noise exposure, Belfast, 2011

From: Aircraft noise and self-assessed mental health around a regional urban airport: a population based record linkage study

 

Low noise < 54 dB % (185, 405)

Moderate noise 54–56.9 dB % (8377)

High noise ≥57 dB % (4750)

P (χ2 test)

Poor mental health

No

90.3

89.3

87.6

< 0.001

Yes

9.7

10.7

12.4

 

Sex

Male

46.5

47.9

45.8

0.026

Female

53.5

52.1

54.2

 

Age (years)

18–24

15.0

12.5

12.6

< 0.001

25–34

19.7

27.6

25.8

 

35–44

16.4

17.6

16.9

 

45–54

17.5

14.4

16.5

 

55–64

12.8

10.9

12.1

 

65–74

9.8

9.4

9.4

 

≥75

8.9

7.7

6.8

 

Ethnicity

White

97.0

96.7

97.5

< 0.001

Non-white

3.0

3.3

2.5

 

Religion

Protestant

34.7

54.4

64.0

< 0.001

Catholic

42.7

16.3

7.7

 

Other

22.6

29.3

28.3

 

Marital status

Never married

37.3

37.5

35.0

< 0.001

Married

37.7

28.7

33.6

 

Cohabiting

7.0

13.2

10.7

 

Separated/divorced

10.5

12.7

13.6

 

Widowed

7.5

7.8

7.1

 

Educational attainment

No qualifications

30.2

35.0

40.2

< 0.001

Foundation

17.6

20.5

21.5

 

5+ GCSEs

12.1

11.3

11.5

 

A level

12.5

10.0

9.0

 

Degree

27.6

23.2

17.9

 

Physical health conditions

0

67.6

65.7

64.3

< 0.001

1

15.9

17.1

17.4

 

2

8.1

8.1

8.9

 

3

5.3

5.4

5.9

 

≥ 4

3.2

3.7

3.4

 

Household car availability

None

31.5

41.0

38.6

< 0.001

One

40.5

43.1

43.5

 

Two or more

28.1

15.9

17.9

 

Property tenure/capital value

Rented

30.0

44.9

47.2

< 0.001

Missing

11.8

14.0

9.1

 

<£75 k

8.4

8.2

9.6

 

£75 k-£99 k

13.7

21.1

21.3

 

£100 k–149 k

16.3

9.4

8.9

 

£150 k-£199 k

7.8

1.1

1.5

 

£200 k-£249 k

4.3

0.8

0.8

 

≥£250 k

7.7

0.6

1.5