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Table 1 Spatial distribution of road traffic noise, according to the administrative division in counties, neighborhood urban typology, and neighborhood education (RECORD Cohort study)

From: Transportation noise and annoyance related to road traffic in the French RECORD study

Variables

Road traffic noise at the place of residence (with the Lden indicator and in dB(A))

Road traffic noise at the 25th percentile of 500 m radius street network buffers around the place of residence (with the Lden indicator and in dB(A))

Road traffic noise at the median of 500 m radius street network buffers around the place of residence (with the Lden indicator and in dB(A))

Road traffic noise at the 75th percentile of 500 m radius street network buffers around the place of residence (with the Lden indicator) in dB(A)

N = 6194

N = 6539

N = 6539

N = 6539

Mean

±SD

Mean

±SD

Mean

±SD

Mean

±SD

Total

56.31

±11.20

43.97

±7.71

49.58

±9.59

61.04

±6.47

Ile-de-France region

        

Outer suburbs

55.70

10.55

44.69

10.27

51.76

9.65

58.41

7.70

Inner suburbs

58.18

9.19

46.89

6.85

53.49

8.29

61.75

6.19

Paris

55.22

13.13

40.13

1.37

43.19

7.32

62.93

4.10

P For Trend*

 

3.42*

0.0003

 

-18.98*

<.0001

 

-31.05*

<.0001

 

22.59*

<.0001

Neighborhood proportion of highly educated residents

        

Low

57.45

±9.13

47.33

±8.07

53.86

±7.35

60.36

±5.45

Mid-low

56.28

±11.11

44.31

±8.51

50.64

±9.86

60.62

±7.47

Mid-high

56.04

±11.81

42.63

±6.91

47.43

±9.71

61.32

±6.31

High

55.29

±12.66

41.22

±5.36

45.83

±9.28

61.94

±6.42

P For Trend*

 

-1.42*

0.078

 

-23.56*

<.0001

 

-26.76*

<.0001

 

11.27*

<.0001

Neighborhood typology

        

Type 1: suburban

55.01

±9.28

47.10

±9.82

54.86

±6.50

60.33

±4.97

Type 2: suburban

55.92

±10.77

43.62

±9.40

50.73

±9.59

57.54

±8.46

Type 3: urban

58.12

±9.38

47.32

±7.33

53.86

±7.73

61.22

±5.50

Type 4: urban

57.57

±10.41

45.46

±7.64

53.24

±9.72

62.71

±6.45

Type 5: central urban

55.71

±12.80

40.00

±0.00

41.54

±4.79

62.26

±3.24

Type 6: central urban

54.63

±13.21

40.79

±3.70

42.39

±6.46

62.73

±4.28

P For Trend**

 

81.63**

<.0001

 

1831.84**

<.0001

 

963.46**

<.0001

 

562.47**

<.0001

  1. * P Values for trend were estimated from the Jonckheere-Terpstra test. ** P Values for trend were estimated from the Kruskall-Wallis test. All neighborhood variables were expressed as ordinal variables. Means and standard deviations were calculated, after excluding individuals with missing values for traffic noise and neighborhood variables. In the Ile-de-France region, “Paris” is the district 75; “inner suburbs” and “outer suburbs” gather respectively districts 92, 93, and 94 and districts 77, 78, 91, and 95. Abbreviations: “Type 1: suburban”: “Type 1: suburban, low social standing”; “Type 2: suburban”: “Type 2: suburban, high social standing”; “Type 3: urban”: “Type 3: urban, low social standing”; “ Type 4: urban”: “Type 4: urban, high social standing”; “Type 5: central urban”: “Type 5: central urban, high social standing”; “Type 6 : central urban”: “Type 6: central urban, intermediate social standing”.
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International Journal of Health Geographics

ISSN: 1476-072X