Table 2.
Mean values of predictor, outcome, and hypothesized mediating variables across quintiles of neighborhood walkability of SILVER-AMI participants (November 2014 – June 2017; N = 1345).
| Variable | Q1 | Q2 | Q3 | Q4 | Q5 | p-trend |
|---|---|---|---|---|---|---|
| Walk Score® | 1.44 (1.47) | 10.32 (3.75) | 26.35 (4.98) | 46.69 (6.81) | 77.23 (11.95) | – |
| Physical activity | 1012.04 (1226.29) | 1109.40 (1384.07) | 839.63 (977.09) | 1027.41 (1206.51) | 940.91 (961.58) | 0.41 |
| Social support | 22.54 (3.74) | 22.05 (4.34) | 22.20 (3.85) | 22.43 (3.73) | 21.10 (5.11) | 0.002 |
| PCS | 42.90 (10.96) | 42.64 (10.83) | 41.69 (11.15) | 42.26 (10.88) | 42.24 (11.09) | 0.46 |
| MCS | 56.06 (7.25) | 57.35 (6.68) | 56.04 (7.57) | 54.99 (9.07) | 55.52 (7.28) | 0.03 |
| HFST | 168.88 (34.69) | 164.57 (42.21) | 165.70 (38.08) | 167.49 (35.16) | 164.97 (40.90) | 0.51 |
Abbreviations: PCS = physical component score of SF-12; MCS = mental component score of SF-12; HFST = hospital-free survival time (days).