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You Decide!

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)
t Statistics in parenthesis
* Significant at 1% level
** Significant at 5% level


| Highlights | Goldstein Study | Bibliography | Footnotes |
| Appendix A | Appendix B
|

© Copyright Jonathan P. Goldstein Ph.D. 1986. All Rights Reserved.

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