Table 1

Descriptive statistics, by treatment and control groups

VariablesFull sampleControl groupTreatment
group
Difference (p value)
CES-D score8.132
(7.178)
7.996
(7.153)
8.771
(7.263)
0.016
Aircraft noise45.714
(3.106)
44.955
(3.073)
46.699
(2.864)
<0.001
Age73.141
(8.548)
73.133
(8.512)
73.178
(8.721)
0.908
Married or living with partner62.5%
(0.484)
65.1%
(0.477)
50.5%
(0.500)
<0.001
Currently in paid employment or is self-employed13.2%
(0.339)
13.0%
(0.337)
14.1%
(0.349)
0.479
Currently retired17.5%
(0.380)
17.4%
(0.379)
17.9%
(0.384)
0.748
Net annual household income above the country-specific net mean household income40.6%
(0.491)
41.4%
(0.493)
36.9%
(0.483)
0.037
Having difficulty walking 2–3 blocks or for about 400–500 m or for 5 min79.9%
(0.401)
80.0%
(0.400)
79.4%
(0.405)
0.758
N17461426320
  • Mean values are reported. SD are included in brackets.

  • The sample size for aircraft noise is significantly smaller due to missingness in noise levels (N=727, with 403 in the control group and 324 in the treatment group).

  • Details of the samples with and without complete noise information can be found in online supplemental appendix 2.

  • Stars represent statistical significance, as follows: *p<0.05; **p<0.01; ***p<0.001.

  • CES-D, Centre for Epidemiologic Studies—Depression.