Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,545 questions · 2,661 findings · 317 reviews

No studies found 608 · 22.8%GRADE not reported 505 · 19%Very low 695 · 26.1%Low 540 · 20.3%Moderate 249 · 9.4%High 64 · 2.4%

Thiazolidinediones vs no intervention

Serious adverse events (number of events) · people with non‐alcohol‐related fatty liver disease (NAFLD)

It is very uncertain whether thiazolidinediones changes serious adverse events (number of events) compared with no intervention (very low certainty).

1 finding from 1 review

Intermittent iron supplementation (alone or with any other micronutrients) vs no supplementation or placebo

All‐cause morbidity · adolescent and adult menstruating women

Intermittent iron supplementation (alone or with any other… showed no clear difference in all‐cause morbidity (the most frequent event associated with the… compared with no supplementation or placebo (low certainty).

1 finding from 1 review

Intraperitoneal drain vs no intraperitoneal drain

Incidence of STP at 24 hours post‐operatively · women undergoing a diagnostic or operative laparoscopic gynaecological procedure

Intraperitoneal drain may leads to lower incidence of STP at 24 hours post‐operatively compared with no intraperitoneal drain (low certainty).

1 finding from 1 review

Alternative mouse alone vs conventional mouse alone

Incidence of upper body disorders (neck, shoulder, and upper extremity) Questionnaire followed by medical examination · office workers

Alternative mouse alone showed no clear difference in incidence of upper body disorder (neck, shoulder and upper… compared with conventional mouse alone (moderate certainty).

1 finding from 1 review

Alternative mouse alone vs conventional mouse alone

Incidence of neck/shoulder disorder Questionnaire followed by medical examination · office workers

Alternative mouse alone showed no clear difference in incidence of neck or shoulderdisorder Questionnaire followed by… compared with conventional mouse alone (low certainty).

1 finding from 1 review

Alternative mouse alone vs conventional mouse alone

Incidence of right upper extremity disorder Questionnaire followed by medical examination · office workers

Alternative mouse alone showed no clear difference in incidence of right upper extremity disorder Questionnaire followed… compared with conventional mouse alone (moderate certainty).

1 finding from 1 review