| |
Belted
|
Unbelted
|
Total
| |
|---|
| |
Lived
|
Died
|
Lived
|
Died
|
Chi-square
a
|
|---|
| |
n
(%)
|
n
(%)
|
n
(%)
|
n
(%)
|
χ
2
(
p
value)
|
|---|
|
Total
|
2,918 (40.4)
|
560 (7.8)
|
2,220 (30.7)
|
1,531 (21.2)
|
7,229
|
536.2 (<0.0001)
|
|
Passenger characteristics
| | | | | | |
|
Passenger age (years)
| | | | | |
233.8 (<0.0001)
|
|
<20
|
492 (16.9)
|
69 (12.3)
|
474 (21.4)
|
257 (16.8)
|
1,292 (17.9)
| |
|
20 to 44
|
1,652 (56.6)
|
182 (32.5)
|
1,149 (65.3)
|
884 (57.7)
|
4,167 (57.6)
| |
|
45 to 64
|
510 (17.5)
|
117 (20.9)
|
239 (10.8)
|
240 (15.7)
|
1,106 (15.3)
| |
|
≥65
|
264 (9.1)
|
192 (34.3)
|
58 (2.6)
|
150 (9.8)
|
664 (9.2)
| |
|
Passenger gender
| | | |
2.3 (0.022)
|
|
Male
|
1,518 (52.0)
|
228 (40.7)
|
1,327 (59.8)
|
868 (56.7)
|
3,941 (54.5)
| |
|
Driver characteristics
| | | | |
|
Driver age (years)
| | | |
15.9 (0.0435)
|
|
<20
|
353 (12.1)
|
64 (11.4)
|
342 (15.5)
|
243 (15.9)
|
1,002 (13.9)
| |
|
20 to 44
|
1,571 (54.0)
|
240 (42.9)
|
1,421 (64.2)
|
943 (61.8)
|
4,175 (57.9)
| |
|
45 to 64
|
713 (24.5)
|
163 (29.1)
|
345 (15.6)
|
256 (16.8)
|
1,477 (20.5)
| |
|
≥65
|
275 (9.4)
|
93 (16.6)
|
106 (4.8)
|
84 (5.5)
|
558 (7.7)
| |
|
Driver gender
| | | | | |
1.9 (0.1643)
|
|
Male
|
2,037 (70.0)
|
368 (65.7)
|
1,633 (74.0)
|
1,092 (71.7)
|
5,130 (71.2)
| |
|
Driver drinking or drugged
| | | | | |
21.3 (<0.0001)
|
|
Yes
|
492 (17.6)
|
94 (18.1)
|
850 (40.6)
|
553 (38.4)
|
1,989 (29.0)
| |
|
Driver belt status
| | | |
2.1 (0.1469)
|
|
Belted
|
2,585 (90.5)
|
513 (94.8)
|
1,131 (52.8)
|
941 (64.5)
|
5,170 (73.9)
| |
-
aChi-square and p value expressed are for the relationship between the left-hand variable in question and death.
