How Long Sick Leave Lasts Across Many Conditions

What was studied

This was a systematic review of research on how long people are away from work because of illness or injury, called sickness absence duration. The authors looked across 20 different health conditions linked to work disability. These included musculoskeletal, neurologic, psychiatric, pulmonary, and several other medical conditions.

The reviewers searched medical databases and gray literature sources, then screened 4,826 scientific articles and 770 other documents. In the end, they included 69 studies. For epilepsy specifically, they reported no information on sickness absence duration.

What they found

The review found that the amount of research varied a lot by condition. The number of identified records per pathology ranged from none to ten. The authors reported no information on sickness absence duration for epilepsy, obsessive compulsive disorder, or Ehlers-Danlos syndrome.

Across the other 15 conditions, reported time away from work ranged from 1.04 days to 11.4 years, with a median of 24 days. The authors said the evidence was insufficient to support a clear consensus or the development of guideline recommendations.

Limits of the evidence

This review does not provide an answer for epilepsy because no information on sickness absence duration for epilepsy was reported in the sources they reviewed. The included evidence for the other conditions was also uneven and limited.

Because the evidence was insufficient, the review could not support a clear consensus or guideline recommendations. The 20 conditions were selected based on their prevalence in work disability as identified by disability management experts, so the review was not meant to cover every health condition.

For families and caregivers

For families affected by epilepsy, this review highlights a gap in the research rather than giving a clear estimate of time away from work. That means there is not enough evidence in this review to guide decisions about return to work for people with epilepsy.

The study suggests that better and more consistent research is needed so health care practitioners and policymakers can make more informed decisions.

What to watch next

Future research should establish consistent and reliable measures of sickness absence duration, including for epilepsy.

Terms in this summary

systematic review

A study that collects and summarizes results from many previous studies using a planned method.

sickness absence duration

How long a person is away from work because of a health problem.

gray literature

Reports or documents that are not published in regular scientific journals, such as government or organization reports.

PRISMA guidelines

A set of rules that helps researchers clearly report how they did a systematic review.

median

The middle value in a list of numbers, where half are lower and half are higher.