translate English to French: Cases of positive toxicology were found in 189 (64.7%) of the deaths tested over the three years, with significant differences in the annual proportions from year to year (p=0.034). Of the 42 cases of death due to overdose, 52% were male.
Nous avons employé le test exact de Fisher pour comparer le nombre de cas de suicide parmi les décès par surdose survenus au cours de la période de trois ans, selon le sexe.