Serious road injuries 2014; Estimate of the number of serious road injuries in 2014. The number of serious road injuries is an important road safety indicator. Since 2010, a serious road injury in the Netherlands is defined as follows: A serious road injury is a road crash casualty who has been admitted to hospital with a minimum MAIS (Maximum Abbreviated Injury Score5) injury severity of at least 2 on a scale of 6, and who has not died within 30 days from the consequences of the crash. Since 2008, retroactively from 1993 onward, the total number of serious road injuries is determined by comparing the data in two data sources: BRON6 (police registration) and Dutch Hospital Data7 (hospital admission data). This is done on the assumption that all serious road injuries are included in Dutch Hospital Data. The method used to determine the number of serious road injuries consists of three steps: 1. linking BRON and Dutch Hospital Data; 2. corrections for incompleteness of Dutch Hospital Data and for crashes that did not occur on public roads; 3. a correction for misclassifications in Dutch Hospital Data. In Dutch Hospital Data not all road crash casualties can be identified as such due to the fact that sometimes an incorrect external cause has been encoded.
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