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Table 5 Correlations between new buffers and standard buffers for percentage land-use exposure (n = 32)

From: Using GPS technology to (re)-examine operational definitions of ‘neighbourhood’ in place-based health research

  Variable width buffer RIC polygon buffer RIC ellipse buffer RIC line buffer
rho p rho p rho p rho p
Circular buffer         
Commercial (%) 0.94 <0.001 0.55 0.002 0.46 0.010 0.55 0.001
Institutional (%) 0.92 <0.001 0.89 <0.001 0.62 <0.001 0.32 0.082
Recreational and park (%) 0.94 <0.001 0.61 <0.001 0.45 0.013 0.48 0.006
Industrial (%) 0.91 <0.001 0.88 <0.001 0.80 <0.001 0.63 <0.001
Residential (%) 0.99 <0.001 0.82 <0.001 0.36 0.051 0.47 0.008
Utilities/Communications (%) 0.89 <0.001 0.58 0.001 0.48 0.008 0.51 0.004
Other (%) 0.96 <0.001 0.65 <0.001 0.45 0.012 0.58 0.001
Polygon Network buffer         
Commercial (%) 0.78 <0.001 0.66 <0.001 0.51 0.004 0.95 <0.001
Institutional (%) 0.78 <0.001 0.65 <0.001 0.48 0.007 0.72 <0.001
Recreational and park (%) 0.60 <0.001 0.58 0.001 0.66 <0.001 0.83 <0.001
Industrial (%) 0.74 <0.001 0.78 <0.001 0.63 <0.001 0.87 <0.001
Residential (%) 0.70 <0.001 0.82 <0.001 0.52 0.003 0.67 <0.001
Utilities/Communications (%) 0.93 <0.001 0.67 <0.001 0.62 <0.001 0.61 <0.001
Other (%) 0.78 <0.001 0.67 <0.001 0.54 0.002 0.74 <0.001
Line-based network buffer         
Commercial (%) 0.76 <0.001 0.60 <0.001 0.45 0.012 0.94 <0.001
Institutional (%) 0.78 <0.001 0.69 <0.001 0.53 0.003 0.69 <0.001
Recreational and park (%) 0.64 <0.001 0.55 0.002 0.65 <0.001 0.81 <0.001
Industrial (%) 0.73 <0.001 0.78 <0.001 0.67 <0.001 0.84 <0.001
Residential (%) 0.67 <0.001 0.83 <0.001 0.52 0.003 0.63 <0.001
Utilities/Communications (%) 0.90 <0.001 0.68 <0.001 0.63 <0.001 0.63 <0.001
Other (%) 0.70 <0.001 0.65 <0.001 0.59 0.001 0.73 <0.001