Table 1 Description of the sample population
From: Association between urban environment and mental health in Brussels, Belgium
Socio-economic status | |
|---|---|
Age median [IQR]/N | 47 [34–63]/1325 |
Sex % [95% CI]/N | |
 M | 50.59 [47.70–53.47]/616 |
 F | 49.41 [46.53–52.30]/709 |
Year % [95% CI]/N | |
 2008 | 53.93 [50.19–57.62]/775 |
 2013 | 46.07 [42.38–49.81]/550 |
Highest educational level in the household % [95% CI]/N | |
 No diploma/primary education/lower secondary | 19.34 [16.75–22.21]/285 |
 High secondary | 26.77 [23.67–30.12]/365 |
 Higher | 53.89 [50.22–57.52]/675 |
Household composition % [95% CI]/N | |
 Single | 35.10 [31.70–38.67]/416 |
 One parent with child [ren] | 10.92 [8.91–13.32]/145 |
 Couple without child [ren] | 18.86 [16.26–21.76]/277 |
 Couple with child [ren] | 29.03 [25.64–32.66]/395 |
 Other/unknown | 6.10 [4.53–8.15]/92 |
Reported household income median [IQR]/N | 1460 [1000–2000]/1325 |
Mental health status | |
Probable mental disorders [GHQ ≥ 4] % [95% CI]/N | 19.81 [17.40–22.46]/255 |
Anxiety disorders % [95% CI]/N | 9.36 [7.74–11.29]/124 |
Depressive disorders % [95% CI]/N | 15.79 [13.61–18.25]/216 |
Sleeping disorders % [95% CI]/N | 28.22 [25.19–31.46]/351 |
Environmental factors | |
Black carbon [annual mean μg/m3] median [IQR] | 2.24 [1.95–2.62]/1325 |
NO2 [μg/m3] median [IQR] | 34.64 [32.04–37.70]/1325 |
PM2.5 [μg/m3] median [IQR] | 19.16 [17.82–20.11]/1325 |
PM10 [μg/m3] median [IQR] | 26.14 [24.11–26.53]/1325 |
O3 [μg/m3] median [IQR] | 36.25 [34.49–37.73]/1325 |
Vegetation coverage 600 m buffer [%] median [IQR] | 35.95 [21.64–51.48]/1325 |
Vegetation coverage 1 km buffer [%] median [IQR] | 37.96 [23.80–52.5]/1325 |
Street visible vegetation coverage [%] median [IQR] | 3.99 [0.00–28.38]/1325 |
View of green median [IQR] | 11.28 [6.04–22.36]/1325 |
Linear tree density median [IQR] | 0.04 [0.00–0.15]/ 1325 |
Linear tree density [categories] % [95% CI]/N | |
 no trees | 28.77 [25.41–32.38]/360 |
 < median | 35.64 [32.22–39.20]/483 |
 > median | 35.6 [32.19–39.12]/484 |
Noise from multiple sources Lden [dB] median [IQR] | 50.96 [48.02–54.06]/1325 |
Street canyon effect median [IQR] | 0.59 [0.39–0.84]/1325 |
Street corridor effect [0–2] median [IQR] | 1.99 [1.46–2.00]/1325 |
Street corridor effect [categories] % [95% CI]/N | |
  < median | 24.80 [21.74–28.17]/336 |
  > median | 24.6 [21.64–27.76]/333 |
 2 | 50.6 [46.91–54.28]/656 |
Lifestyle factors | |
Perceived quality of social support % [95% CI]/N | |
 Strong/intermediate support | 77.56 [74.46–80.38]/1036 |
 Poor support | 22.44 [19.62–25.54]/289 |
Level of health enhancing physical activity % [95% CI]/N | |
 Inactive | 33.33 [30.16–36.65]/468 |
 Minimal active | 40.58 [37.44–43.79]/537 |
 Enough active | 26.10 [23.39–29.00]/320 |
Chronic condition % [95% CI]/N | 33.45 [30.36–36.70]/435 |