Work accidents are sudden and sometimes violent events occurring during the execution of work leading to health damage or loss of life of the worker. International comparisons of work accidents are difficult, because of differences in record-keeping – e.g. statistics sometimes only record “compensated” accidents in workplaces of a sufficient size and exclude minor injuries – and in data-sources – insurance companies, social security registers, labour inspectorates, establishment censuses and special surveys. Comparability has however improved since the adoption of an ILO Resolution on “Statistics on occupational injuries resulting from accidents at work” in 1998, which sets out standards for data collection and presentation. The Resolution recommends capturing data on all work-related accidents causing an absence from work of at least one day (excluding the day of the event) during a given reference period (usually one year).