[Long working hours and occupational injuries: estimates from the First Survey on Safety and Health Conditions at Work in Ecuador].

to estimate the association between weekly working hours and occupational injuries (OI) among the salaried population in Guayaquil, Ecuador.  Methods: a cross-sectional study that used data from the First Survey on Safety and Health Conditions at Work in Ecuador in 2017. The respondents were 1005 salaried workers, divided into two groups according to weekly working hours, ?43 and ?44 hours.