Table 2.
Characteristics of the intersection and index crossing for cases and controls, unweighted and weighted.
| Unweighted | P Value* | Weighted | P Value* | |||
|---|---|---|---|---|---|---|
| Cases N=97 % |
Controls N=97 N % |
Cases N=1134 % |
Controls N=1134 % |
|||
| No. of Legs | 0.170 | 0.014 | ||||
| 3 | 33 | 28 | 39 | 29 | ||
| 4 | 67 | 70 | 61 | 70 | ||
| 5 | 0 | 2 | 0 | 1 | ||
| No. of Segments | 0.385 | 0.366 | ||||
| 1 | 31 | 28 | 32 | 29 | ||
| 2 | 54 | 57 | 58 | 62 | ||
| 3 | 8 | 7 | 8 | 7 | ||
| 4 | 7 | 8 | 2 | 3 | ||
| No. of lanes | 4.4 (2.1) | 4.5 (2.0) | 0.550 | 4.2 (2.0) | 4.4 (1.9) | 0.322 |
| Crossing Width (Meters), Mean (SD) | 21.2 (13.4) | 20.9 (13.3) | 0.756 | 17.9 (10.0) | 18.8 (10.7) | 0.520 |
| Any refuge | 0.327 | 0.577 | ||||
| No | 33 | 30 | 40 | 44 | ||
| Yes | 67 | 70 | 59 | 56 | ||
| Width of Refuges (Meters), Mean (SD) | 8.3 (7.7) | 8.5 (7.3) | 0.380 | 5.2 (4.5) | 5.7 (5.2) | 0.680 |
| Surface Material | 0.484 | 0.448 | ||||
| Asphalt | 95 | 93 | 88 | 87 | ||
| Concrete or Brick | 5 | 7 | 12 | 1 | ||
| Surface Condition | 0.913 | 0.645 | ||||
| Excellent | 4 | 8 | 10 | 14 | ||
| Good | 54 | 49 | 47 | 44 | ||
| Fair | 32 | 29 | 33 | 33 | ||
| Poor | 10 | 13 | 10 | 9 | ||
| Marked Crosswalk | 0.339 | 0.073 | ||||
| No | 39 | 44 | 34 | 41 | ||
| Yes | 61 | 56 | 65 | 59 | ||
| Crosswalk Marking Visibility | 0.567 | 0.303 | ||||
| Unmarked | 39 | 44 | 35 | 41 | ||
| Good Visibility | 24 | 21 | 20 | 21 | ||
| Fading | 23 | 21 | 25 | 19 | ||
| Almost Gone | 14 | 14 | 20 | 18 | ||
| Vehicles per hour, Mean (SD) | 1715 (967) | 1553 (1001) | 0.053 | 1677 (951) | 1429 (868) | 0.114 |
| Pedestrians per hour, Mean (SD) | 436 (505) | 305 (404) | 0.007 | 360 (396) | 285 (378) | 0.331 |
| Mean Speed (KPH), Mean (SD) | 33.7 (6.1) | 34 (6.0) | 0.442 | 31.9 (5.8) | 33.8 (5.7) | 0.230 |
| Max Speed (KPH), Mean (SD) | 55.9 (28.2) | 54.4 (10.2) | 0.625 | 50.0 (9.8) | 53.3 (9.4) | 0.936 |
*
P Value was a test for null hypothesis of equal odds ratios between categories.