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Table 3 Comparison of the level of knowledge (average ratings: 1 = the best; 5 = the worst)

From: First aid as an important traffic safety factor – evaluation of the experience–based training

Type of Training Emergency line number Desired proceedings on the scene of traffic accident Internal injury issues Spinal injury issues Priority issues – massive bleeding or resuscitation When to take the casualty outside of the car? Average knowledge rating
Improved
 Mean 1 1.6 1.1 1 1 1.53 1.21
 Std. Deviation 0 0.83 0.26 0 0 0.52 0.23
 Median 1 1 1 1 1 2  
Standard
 Mean 2.33 4 5 2.33 2.33 3.93 3.8
 Std. Deviation 1.45 1 0 1.95 1.95 0.96 0.62
 Median 3 4 5 5 1 4  
Difference (n1 = n2 = 15)
 Mann-Whitney U 52.5** 10.5*** 0*** 0*** 75* 0***  
 r 0.59 0.79 0.97 0.97 0.44 0.87  
  1. *p < .05; ** p < .01; ***p < .001