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

From: 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

Interaction effect eb 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
  1. eb 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)