Objective and perceived availability of physical activity opportunities: differences in associations with physical activity behavior among urban adolescents

Table 4 Kappa statistics and % agreement between perceived and objective environmental measures and odds ratios for perceiving availability of facilities

Facility	Kappa	% Agreement	% Over-reporting	% Under-reporting	OR [95% CI] ^c
Parks^a	0.045	62.3	19.6	18.2	1.51 [1.18-1.93]
Sports facilities^a	-0.004	73.0	0.6	26.5	0.99 [0.97-1.01]
Sidewalks^b	-0.005	53.8	43.0	3.2	1.02 [0.97-1.08]
Bicycle lanes^b	0.053	54.1	18.3	27.5	1.40 [0.98-1.99]

^a For objective environment, the number counted within a radius of 1500 meters; ^b for objective environment, the percentage of neighborhood land area. Bold values are significant; ^c associations perceived environment with objective environment

ISSN: 1479-5868