Urban environments and objectively-assessed physical activity and sedentary time in older Belgian and Chinese community dwellers: potential pathways of influence and the moderating role of physical function

Table 3 Significant moderators of total effects (associations) of neighbourhood environmental attributes on accelerometer-assessed MVPA and ST

Interaction effect	e^b	95% CI	p
*Outcome: MVPA*
Residential density – 400 m buffer (1000 dwellings/km²) by SPPB	0.999	0.998, 1.000	.015
Association at mean – 1 SD value of SPPB (8.08 points)	1.004	1.000, 1.007	.048
Association at mean value of SPPB (10.02 points)	1.001	0.998, 1.004	.531
Association at mean + 1 SD value of SPPB (11.96 points)	0.998	0.995, 1.002	.370
Residential density – 1 km buffer (1000 dwellings/km²) by SPPB	0.998	0.997, 0.999	.003
Association at mean – 1 SD value of SPPB (8.08 points)	1.006	1.002, 1.010	.009
Association at mean value of SPPB (10.02 points)	1.002	0.999, 1.006	.219
Association at mean + 1 SD value of SPPB (11.96 points)	0.999	0.994, 1.003	.582
Commercial & civic destination density – 400 m buffer (10 destinations/km²) by Study site	1.010	1.002, 1.018	.017
Association in Hong Kong	0.998	0.992, 1.005	.613
Association in Ghent	1.008	1.003, 1.014	.004
Recreation density (facilities/km²) – 1 km buffer by Study site	1.027	1.004, 1.050	.023
Association in Hong Kong	1.002	0.997, 1.007	.326
Association in Ghent	1.029	1.007, 1.052	.010
*Outcome: sedentary time (average min/day)*	b	95% CI	p
Residential density – 1 km buffer (1000 dwellings/km²) by Study site	2.52	0.14, 4.90	.038
Association in Hong Kong	0.00	−0.50, 0.50	.953
Association in Ghent	2.52	0.05, 4.99	.046

e^b exponentiated regression coefficient, CI confidence intervals, b regression coefficient, p p-value, SPPB Short Physical Performance Battery, 400 m and 1 km buffers denote street-network residential buffer sizes. Models were adjusted for covariates listed in Table S1 (model T)

ISSN: 1479-5868