|  | Model 1b: 6 mo follow-up adjusted for baseline | Model 2c: 6 mo follow-up adjusted for baseline, mediators at 3 mo | Model 3d: 6 mo change from baseline | Model 4e: 6 mo change from baseline, mediators at 3 mo |
---|---|---|---|---|---|
Physical activity outcome | Â | b (95% CI) | b (95% CI) | b (95% CI) | b (95% CI) |
   Number of minutes of brisk walking |  | 25.64 (11.73,39.55)*** | 25.64 (11.73,39.55)*** | 37.48 (21.82,53.14)*** | 37.48 (21.82,53.14)*** |
Action theory tests (single mediator models) |  | α (95% CI) | α (95% CI) | α (95% CI) | α (95% CI) |
   Social cohesion |  | 0.097 (-0.010,0.21) | 0.059 (-0.032,0.15) | 0.17 (0.044,0.30)* | 0.13 (0.0094,0.24)* |
   Walking efficacy |  | 0.50 (0.14,0.86)** | 0.58 (0.27,0.86)*** | 0.19 (-0.19,0.56) | 0.32 (-0.0011,0.65) |
   Perceived neighborhood problems |  | 1.62 (0.65,2.59)** | 0.86 (-0.27,1.76) | 1.65 (0.56,2.75)** | 0.95 (-0.076,1.97) |
Conceptual theory tests (single mediator models) |  | β (95% CI) | β (95% CI) | β (95% CI) | β (95% CI) |
   Social cohesion |  | -2.12 (-16.67,12.42) | -8.73 (-23.41,5.94) | -5.69 (-19.27,7.90) | -5.97 (-19.66,7.71) |
   Walking efficacy |  | 17.43 (13.21, 21.66)*** | 10.97 (6.43,15.51)*** | 12.11 (7.72,16.51)*** | 6.18 (1.56,10.81)** |
   Perceived neighborhood problems |  | -1.53 (-2.96,-0.11)* | -0.25 (-1.71,1.20) | -1.34 (-2.69,0.014) | -0.31 (-1.74,1.11) |
Mediating effects (single mediator models) |  | αβ (95% CI) | αβ (95% CI) | αβ (95% CI) | αβ (95% CI) |
   Social cohesion |  | -0.21 (-1.84,1.23) | -0.52 (-1.98,0.38) | -0.97 (-3.73,1.25) | -0.78 (-3.01,0.91) |
   Walking efficacy |  | 8.72 (2.53,15.56)** | 6.36 (2.69,10.97)*** | 2.30 (-2.13,7.14) | 1.98 (-0.014,4.95) |
   Perceived neighborhood problems |  | -2.48 (-5.60,-0.22)* | -0.22 (-1.66,1.05) | -2.21 (-5.31,-0.047)* | 0.69 (-0.58,2.58) |
Mediating effects (multiple mediator model) |  | αβ (95% CI) | αβ (95% CI) | αβ (95% CI) | αβ (95% CI) |
   Social cohesion |  | -0.67 (-2.62,0.65) | -0.78 (-2.60,0.35) | -1.19 (-4.00,0.94) | -0.92 (-3.23,0.74) |
   Walking efficacy |  | 8.24 (2.39,14.80)** | 6.61 (2.82,11.36)** | 2.08 (-1.93,6.51) | 2.04 (-0.013,5.09) |
   Perceived neighborhood problems |  | -1.83 (-4.68,0.32) | -0.15 (-1.56,1.14) | -1.32 (-4.03,0.77) | 0.035 (-1.44,1.54) |