Heinrich's pyramid and occupational safety: A statistical validation methodology

@inproceedings{Marshall2018HeinrichsPA,
  title={Heinrich's pyramid and occupational safety: A statistical validation methodology},
  author={Pablo Marshall and A Macarena Hirmas and Marcos Singer},
  year={2018}
}
Abstract Heinrich’s pyramid, which postulates that the severity distribution of occupational accidents is relatively constant, is one of the main tools for management of occupational safety. However, existing evidence suggests that decreases in minor accidents have not always been followed by similar decreases in serious and fatal accidents. To test the statistical validity of the pyramid, we propose a Bayesian two-part model: the first part estimates accident rates using a Poisson-gamma… CONTINUE READING