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Table 1 Factor pattern for neighbourhood walkability variables

From: Re-visiting the relationship between neighbourhood environment and BMI: an instrumental variables approach to correcting for residential selection bias

Dimensions of neighbourhood walkability measured at the block group level Grand mean (N = 550) Mean for block groups in lowest factor score quartile (N = 138) Mean for block groups in highest factor score quartile (N = 138) Factor loadings
Proximity to Central Business District (miles) 14.17 23.00 4.66 0.30
Population Density (residents/sq mile) 5,639.51 3,702.62 7,472.63 0.17
Proportion Who Walk to Work 0.02 0.01 0.06 0.24
Proportion Who Bike to Work 0.01 0.00 0.02 0.21
Proportion Who Take Public Transit to Work 0.04 0.02 0.08 0.24
Median Age of Housing (yrs) 29.08 12.79 46.12 0.26