This is one example of information on comparative risks.
The Department for Communities and Local Government (DCLG) published a report in September 2008 called "Review of Health and Safety Risk Drivers". This looks at 33 hazards that may affect people in buildings. It assesses them by the number of people affected, the degree of harm resulting, and the strength of evidence. It then uses a matrix approach to assign an overall score to each hazard.
We reproduce the summary results table for domestic buildings below.
In terms of severity of injury and numbers involved, hygrothermal conditions (the effect on health from either low- or high-temperatures and humidity), and slips, trips and falls are among the most severe – attracting the highest index. By comparison, electromagnetic fields are at the bottom of the list with a risk index of “no basis for risk assessment”.
reproduced from page 22 of the CLG report