Findings
What do systematic reviews say? 4,860 questions · 64,864 findings · 4,913 reviews · Headline outcomes only
13,869 · 21.4% 3,491 · 5.4% 16,300 · 25.1% 17,338 · 26.7% 10,900 · 16.8% 2,966 · 4.6%
Ranked among the 5,000 newest matching findings; add words or filters to narrow the search.
Exercise capacity · people with non‐ulcerated chronic venous insufficiency
It is very uncertain whether physical exercise changes exercise capacity assessed by: time on treadmill (higher is better) compared with no treatment (very low certainty).
1 finding from 1 review
Muscle strength · people with non‐ulcerated chronic venous insufficiency
It is very uncertain whether physical exercise changes muscle strength assessed by: heel lifts (higher is better) compared with no treatment (very low certainty).
1 finding from 1 review
Quality of sleep · Shift workers
1 finding from 1 review
no estimate extracted
62 participants
Sleep length off‐shift · Shift workers
1 finding from 1 review
Sleepiness during shifts · Shift workers
1 finding from 1 review
Number of hours worked · Shift workers
1 finding from 1 review
Other secondary outcomes (number of staff; overtime; staff costs) · Shift workers
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
Quality of sleep · Shift workers
1 finding from 1 review
no estimate extracted
111 participants
Sleep length off‐shift · Shift workers
1 finding from 1 review
no estimate extracted
121 participants
Sleepiness during shifts · Shift workers
1 finding from 1 review
no estimate extracted
121 participants
Overtime · Shift workers
1 finding from 1 review
no estimate extracted
59 participants
Other secondary outcomes (number of staff; number of hours worked; staff costs) · Shift workers
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
Quality of sleep · Shift workers
1 finding from 1 review
no estimate extracted
25 participants
Sleep length off‐shift · Shift workers
1 finding from 1 review
no estimate extracted
62 participants
Sleep length off‐shift · Shift workers
1 finding from 1 review
no estimate extracted
30 participants
Sleepiness during shifts · Shift workers
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
Secondary outcomes (number of staff; number of hours worked; overtime; staff costs) · Shift workers
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
Sleepiness during shifts · Shift workers
1 finding from 1 review
no estimate extracted
62 participants
Secondary outcomes (number of staff; number of hours worked; overtime; staff costs) · Shift workers
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
Quality of sleep · Shift workers
1 finding from 1 review
no estimate extracted
282 participants
evidence gaps · evidencegaps.com
Not clinical guidance. Data from the Cochrane Library (Summary of Findings tables and full text), PubMed and Crossref, extracted by the Evidence Gaps pipeline. Related-question groupings and the gap map key are proposals pending human validation. A review that found no studies, or no review at all, is not proof that no research exists.