Table 2 Study variables at each time point
|  | Baseline (n = 1813) | Year 1 (n = 1467) | Year 3 (n = 1230) | Year 7 (n = 531) |
|---|---|---|---|---|
Variable | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) |
Built environment | Â | Â | Â | Â |
 Residential densitya | 15.1 (8.0) | 12.7 (5.4) | 14.1 (5.2) | 14.3 (4.1) |
 Street connectivityb | 61.5 (18.0) | 73.8 (25.7) | 78.8 (26.0) | 82.3 (27.4) |
 Local destinationsc | 52.6 (72.7) | 15.6 (36.7) | 20.7 (49.0) | 25.8 (38.3) |
Social environment | Â | Â | Â | Â |
 Social cohesion | 3.0 (0.6) | 3.6 (0.6) | 3.5 (0.6) | 3.5 (0.6) |
Perceptions | Â | Â | Â | Â |
 Aesthetics | 3.4 (0.7) | 3.6 (0.6) | 3.4 (0.6) | 3.4 (0.6) |
 Traffic hazards | 2.6 (0.8) | 2.2 (0.6) | 2.3 (0.6) | 2.4 (0.6) |
 Street lighting | 3.1 (1.0) | 3.5 (0.9) | 3.4 (0.9) | 3.5 (0.9) |
Safety from crime | Â | Â | Â | Â |
 Perceived safety from crime | 3.4 (0.8) | 3.8 (0.6) | 3.7 (0.6) | 3.7 (0.6) |
 Crimes reported to policed | 88.4 (86.9) | 71.6 (92.1) | 76.6 (85.9) | - |
Walking (min/week) | Â | Â | Â | Â |
 Total walking | 96.3 (139.3) | 109.4 (178.5) | 121.1 (214.0) | 109.9 (139.5) |
 Walking for recreation | 68.7 (98.4) | 89.0 (112.8) | 90.0 (127.5) | 87.6 (121.4) |
 Walking for transport | 26.6 (57.8) | 19.8 (50.2) | 25.6 (68.5) | 27.8 (69.6) |