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Many opportunities for learning from past accidents are lost in practical working life because no systematic approach is used when accidents occur. The Danish Work Environment Authority (DWEA) developed a tool for systematic accident investigation, aimed at inducing a change in attitudes to accident prevention, paying more attention to the root causes and underlying weaknesses of the work system.
It was hypothesised, that companies that used the tool in the intervention period would improve their safety maturity, compared to those companies that did not use the tool.
The tool was introduced to 400 Danish companies via direct delivery and instruction (few hours) by a labour inspector. Attitudes towards the causes of injury were measured by using a twelve-item scale immediately before the introduction of the tool at baseline, and again at the one-year follow-up. The
respondents were asked what proportion of accidents could be assigned to certain types of causes. 155 companies responded to the baseline questionnaire, 248 companies responded to the follow-up questionnaire and 99 responded to all questions in both questionnaires.
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