Table 2 Descriptive characteristics of the walking school bus programs
| Â | Low-sustainability programs N=9 | High-sustainability programs N=11 |
|---|---|---|
Region, N (%) | Â | Â |
 Northeast | 0 (0%) | 2 (18%) |
 Midwest | 4 (44%) | 5 (46%) |
 West | 3 (33%) | 1 (9%) |
 Southwest | 0 (0%) | 1 (9%) |
 Southeast | 2 (22%) | 2 (18%) |
Coordinator, N (%) | Â | Â |
 Parent | 2 (22%) | 2 (18%) |
 School staff | 5 (56%) | 5 (46%) |
 External organization | 2 (22%) | 4 (36%) |
External funding, N (%) | Â | Â |
 Yes | 4 (44%) | 6 (55%) |
 No | 5 (56%) | 5 (45%) |
Free or reduced price lunch eligibility, mean (SD) | 45% (28%) | 55% (33%) |
Number of student participants, mean (SD) | 28.56 (18.32) | 63.64 (120.29) |
Number of trips per week, mean (SD) | 3.22 (3.49) | 3.73 (2.83) |
Number of route leaders, mean (SD) | 3.11 (3.44) | 7.91 (6.35) |