Table 3
Fixed effect OLS models: ratio of fatalities/slight injuries
|
Dependent variable |
Ratio of Fatalities / Slight Injuries | |||||||
|
OLS fixed effect model |
Model with AR(1) correction | |||||||
|
______a______ |
_______B______ |
_______C_______ |
______D______ | |||||
|
Variables |
Coef. |
t-stat |
Coef. |
t-stat |
Coef. |
t-stat |
Coef. |
t-stat |
|
ln(average vehicle age) |
-0.351 |
-1.99 |
-0.272 |
-1.16 |
0.032 |
0.23 |
0.204 |
0.96 |
|
ln(% network miles of motorway & trunk road) |
0.538 |
1.41 |
-0.294 |
-0.76 |
0.411 |
0.88 |
-0.046 |
-0.09 |
|
ln(% network miles of other roads) |
-0.097 |
-0.81 |
-0.116 |
-1.08 |
0.119 |
0.85 |
0.063 |
0.47 |
|
ln(Motorway length per square km of area) |
-0.183 |
-1.66 |
-0.131 |
-0.92 |
-0.125 |
-0.93 |
-0.283 |
-1.54 |
|
ln(Trunk road length per square km of area |
-0.246 |
-0.89 |
0.222 |
0.83 |
-0.149 |
-0.44 |
0.098 |
0.29 |
|
ln(Vehicles per thousand population) |
0.015 |
0.24 |
0.031 |
0.36 |
0.062 |
0.99 |
0.032 |
0.33 |
|
ln(% of household having no car) |
0.290 |
2.26 |
0.171 |
1.42 |
0.193 |
1.55 |
0.204 |
1.60 |
|
ln(GDP £ per capita 1998 £)_______________________ |
0.381 |
1.24 |
0.445 |
1.52 |
0.273 |
0.72 |
0.696 |
1.80 |
|
ln(Per capita expenditure on alcohol, 1998 £) |
0.173 |
1.35 |
0.065 |
0.51 |
0.266 |
1.71 |
0.155 |
0.96 |
|
ln(Average length of inpatient stay in the hospital) |
0.501 |
3.39 |
0.321 |
1.94 | ||||
|
ln(NHS staff per thousand population) |
-0.255 |
-3.02 |
-0.140 |
-1.88 | ||||
|
ln(Persons waiting for hospital treatment) |
0.161 |
1.93 |
0.209 |
1.78 | ||||
|
ln(Total population) |
0.020 |
0.21 |
-0.292 |
-2.08 |
0.071 |
0.54 |
-0.096 |
-0.58 |
|
ln(% population age 0-14) |
-0.436 |
-1.22 |
-0.637 |
-1.80 |
-0.031 |
-0.10 |
-0.395 |
-1.09 |
|
ln(% population age 15-24) |
-0.001 |
-0.01 |
-0.166 |
-1.27 |
-0.152 |
-1.31 |
-0.193 |
-1.48 |
|
ln(% population age 25-44) |
0.184 |
0.59 |
0.309 |
0.98 |
-0.177 |
-0.59 |
0.019 |
0.06 |
|
ln(% population age 45-64) |
0.117 |
0.35 |
0.203 |
0.60 |
0.069 |
0.21 |
-0.214 |
-0.59 |
|
ln(% population age 65 or over) |
0.434 |
1.49 |
0.566 |
1.82 |
0.393 |
1.37 |
0.160 |
0.49 |
|
constant |
-14.065 |
-2.83 |
-1.782 |
-0.34 |
-15.635 |
-6.27 |
-10.049 |
-2.77 |
|
Number of observations |
______200 |
_______180 |
_______190 |
_______171 | ||||
|
R-Squared (within) |
0.923 |
0.942 |
0.752 |
0.853 | ||||
|
Autocorrelation parameter, n |
0.584 |
0.434 | ||||||
* year dummy variables are not shown for brevity
25
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