Moving house is the most common event studied in this report. (gov.scot)
Our more formal event study analysis confirms this basic pattern, while zeroing in on the timing of school finance reforms to ensure that we distinguish the effects of these reforms from other factors. (equitablegrowth.org)
[1] G. Ross Baker et al, The Canadian Adverse Events Study: the incidence of adverse events among hospital patients in Canada, CMAJ May 25, 2004 vol. (bogoroch.com)