Background: This is the second of two papers focused on insured costs of workplace accidents. In part I, a systematic review of the literature was conducted to identify previous models. Although uninsured costs have been identified, there is no reliable method for employers to estimate their cost. Objective: This paper proposes a quantitative model to represent the behaviour of the cost of accidents. It provides a cost range into which the accident is most likely to fall, based on information known at the time of the accident. Methods: A logarithmic distribution is proposed to represent the insured cost as a function of the severity of the accident and the occupation of the workforce exposed. Point estimates for administrative costs and production losses are obtained based on a generic case in order to quantify the equation in terms of monetary value. Results: For a given workforce composition, it is possible to obtain uninsured cost intervals that range from 0-3.5 times the insured costs. The evidence supports a logarithmic relationship between uninsured and insured costs, contrary to the principle of linear ratios. Conclusion: The proposed model requires only basic information about the accident: the severity of the injury and the composition of the workforce exposed. The value added from the model is not only an interval range for the insured costs but also the financial contribution of safety programmes to the workplace that is often ignored by employers.
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