Table 3: Average medical cost per head injury in a motorcycle accident.

VariableBefore the helmet use lawAfter the helmet use law% Change value

Medical cost21318.2618866.76−11.50%

Geographic locations0.0289
 North31007.9723769.13−23.35%
 Center24298.0815407.69−36.59%
 South18047.5617821.99−1.25%
 East19979.7521683.678.53%

Gender0.5428
 Male23921.3520804.87−13.03%
 Female18071.6016087.79−10.98%

Age0.0025
 Children17020.909428.84−44.60%
 Adult 15–2419818.6616532.17−16.58%
 Adult 25–6422781.5421450.68−5.84%
 Elderly21183.0612797.73−39.59%

Rural/urban0.0173
 Special municipality29674.7521949.89−26.03%
   City27034.6219247.94−28.80%
 County administered16338.6715193.83−7.01%
   Town24339.3519275.41−20.81%
   Village23501.8719282.52−17.95%

Observations = 1,254.
Unit: NT $, 1 US$ = 33.4 NT$ in 1998.
Medical costs due to head injuries are only for individuals that sustained a head injury in a motorcycle accident.