Table 2 Total and direct effects of neighbourhood environmental characteristics on cognitive function
Environmental characteristic (units) | Effect | Memory (CVLT raw score) | Processing speed (SDMT raw score) |
|---|---|---|---|
| Â | b (95% CI) | b (95% CI) | |
Population density (10 persons/ha) | Total | 0.121 (0.045, 0.197) | 0.151 (-0.146, 0.447) |
Direct | 0.069 (-0.045, 0.184) | -0.064 (-0.505, 0.378) | |
Street intersection density (10 intersections/km2) | Total | -0.011 (-0.288, 0.286) | -0.026 (-0.137, 0.086) |
Direct | 0.007 (-0.022, 0.037) | -0.001 (-0.114, 0.113) | |
Percentage of commercial land use (10%) | Total | -0.004 (-0.124, 0.116) | 0.109 (-0.365, 0.583) |
Direct | -0.054 (-0.176, 0.069) | -0.073 (-0.553, 0.407) | |
Non-commercial land use mix (0.10 score) | Total | -0.002 (-0.064, -0.061) | 0.118 (-0.114, 0.349) |
Direct | -0.014 (-0.078, 0.050) | 0.111 (-0.121, 0.342) | |
Percentage of parkland (10%) | Total | 0.078 (0.014, 0.142) | 0.243 (0.006, 0.480) |
Direct | 0.078 (0.014, 0.141) | 0.211 (0.021, 0.401) | |
Percentage of blue space (10%) | Total | -0.150 (-0.490, 0.189) | 0.225 (-1.154, 1.604) |
Direct | -0.097 (-0.436, 0.243) | 0.492 (-0.886, 1.870) | |
NO2 (ppb) | Total | 0.011 (-0.040, 0.061) | 0.159 (-0.029, 0.347) |
Direct | 0.007 (-0.043, 0.057) | 0.218 (0.032, 0.404) | |
PM2.5 (μg/m3) | Total | 0.096 (0.046, 0.146) | 0.013 (-0.171, 0.197) |
Direct | 0.085 (0.035, 0.135) | -0.059 (-0.238, 0.121) |