The Effect of Motorcycle Helmet Use on the Probability
of Fatality and the Severity of Head And Neck Injuries
TableIV - Tobit Estimates of Neck Injury Severity Model
| Equation |
Constant |
H |
HI |
K1 |
K2 |
BA |
A |
EA |
EX |
HW |
o |
1 |
| 5 |
-28.42* |
-21.34* |
1.58** |
0.00081 |
|
0.55** |
0.21 |
-4.59 |
0.021 |
|
16.98 |
-409.98 |
|
(-6.08) |
(-2.58) |
(2.02) |
(2.83) |
|
(2.02) |
(1.71) |
(-1.68) |
(0.58) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 6 |
-27.60* |
-22.59* |
1.68** |
|
0.00041** |
0.70* |
0.20 |
-5.24 |
0.032 |
|
17.33 |
-411.87 |
|
(-5.94) |
(-2.61) |
(2.05) |
|
(2.02) |
(2.59) |
(1.64) |
(-1.88) |
(0.87) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 7 |
-28.85* |
-30.12** |
1.61** |
0.00080* |
|
0.54** |
0.23 |
-4.56 |
0.021 |
3.10 |
17.02 |
-409.90 |
|
(-6.09) |
(-2.09) |
(2.02) |
(2.82) |
|
(1.96) |
(2.54) |
(1.70) |
(-1.87) |
(0.72) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 8 |
-28.00* |
-26.18 |
1.63** |
|
0.00040** |
0.69** |
0.22 |
_5.25 |
0.033 |
(0.32) |
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
t Statistics in parenthesis
* Significant at 1% level
** Significant at 5% level |
|
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© Copyright Jonathan P. Goldstein Ph.D. 1986. All Rights Reserved.
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