Occupational health and safety (OHS) policy makers are keen on making decisions based on evidence. But evidence seems hard to get, for many reasons.
Some people, including those in workplace relations and OHS, often fill the evidence gap with “anecdotal evidence”. Frequently people being interviewed are asked for evidence to substantiate their claims and respond that “anecdotally” there is a problem yet there is no sample size for this evidence, there is no clarity or definition of the incident or issue – it is simply “what I heard” or “what I’ve been told”. Using anecdotal evidence is okay as long as its inherent uncertainty is acknowledged and it is not used as a basis for substantial change.
On November 9 2017, the Australian Institute of Health and Welfare (AIHW) released statistical data on work-related injury. This data included statistics from workers compensation but also statistics about hospitalised injuries that were identified as work-related but funded by sources other than workers’ compensation. The report also provides a different perspective on mental health.
Workplace injury statistics are always less than reality as they are 
In February 2018 the 