This article discusses which factors can influence the amount of sick leave an employee takes. It concludes that there are various reasons beyond the primary illness that can contribute to a longer sick leave, such as stress, depression, and physical exhaustion related to the job of the employee. It also states other factors that seem to correlate with longer amounts of sick leave, such as having a lower level of education or the age of the employee.

Read more: Does stress lead to lengthier periods of sick leave? – Science Daily