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Table 2 Comparison of medical care received by motorcycle operators involved in crashes in partial and universal helmet law states

From: Motorcycle helmet effectiveness in reducing head, face and brain injuries by state and helmet law

  Partial helmet law Universal helmet law P-value*
Number of motorcycle operators with a linked medical record N = 15,458 N = 26,513  
Percent linked to an Emergency department (ED) record 73 % 68 %  
 Median ED charges $1,987 $1,443 <0.01
 Mean ED charges $3,688 $3,217 <0.01
 % Public/Self/Uninsured payer 33 % 29 % <0.01
Percent linked to a Hospital record 27 % 32 %  
 Median hospital charges $31,506 $25,949 <0.01
 Mean hospital charges $59,032 $56,325 0.16
 Mean hospital length of stay (days) 6.7 7.1 0.06
 Percent discharged home 81 % 83 % 0.03
 % Public/Self/Uninsured payer 34 % 29 % <0.01
Percent died according to ED or hospital recorda 2.2 % 2.1 % 0.60
  1. ED Emergency Department
  2. a One state is excluded due to ED Disposition not being included in the state dataset
  3. * P-value from a Median regression model with bootstrapped standard errors (Medians), linear regression model (Means), or likelihood ratio test of homogeneity (Percents)