Sugar Sweetened Beverage Consumption among Primary School Students: Influence of the Schools’ Vicinity

Table 3

Correlation pattern and explained variance of built environment variables by PCA factors.

Built environment variable	Mean (SD)	⁢Correlation pattern		Variance (%)	Underlying concept
		Factor 1	Factor 2
Nb. fast foods	1.8 (2.3)	0.894	−0.093	68.8	Urban density
Nb. convenience stores	1.5 (1.1)	0.871	−0.225
Walkability^†	0.2 (1.9)	0.825	−0.411
NDVI^††	0.4 (0.1)	−0.854	0.379
Distance to closest convenience store (m)	1653 (2800)	−0.220	0.959	19.1	SSB sources proximity
Distance to closest fast food restaurant (m)	877 (1619)	−0.285	0.940

Walkability index: a higher value of the walkability index suggests a pedestrian friendly environment.
^††Normalized difference vegetation index: the NDVI values extend from −1 to 1; −1 expressed a total lack of vegetation, while 1 would report a dense forest cover.