Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,092 questions · 3,199 findings · 339 reviews · Headline outcomes only

No studies found 714 · 22.3%GRADE not reported 181 · 5.7%Very low 695 · 21.7%Low 908 · 28.4%Moderate 568 · 17.8%High 133 · 4.2%

Oral iron sulphate vs oral iron hydroxide polymaltose complex

Serious adverse events ‐ active or inactive disease (14 days) · IBD patients

It is very uncertain whether oral iron sulphate changes serious adverse events ‐ active or inactive disease (14 days) compared with oral iron hydroxide polymaltose complex (very low certainty).

1 finding from 1 review

Femoral vs subclavian insertion: short‐term catheterization

Immediate mechanical complications ‐ Total mechanical complications · critically ill patients

Femoral showed no clear difference in immediate mechanical complications ‐ Total mechanical complications compared with subclavian insertion: short‐term catheterization (high certainty).

1 finding from 1 review

Femoral vs subclavian insertion: short‐term catheterization

Immediate mechanical complications ‐ Major mechanical complications · critically ill patients

Femoral showed no clear difference in immediate mechanical complications ‐ Major mechanical complications compared with subclavian insertion: short‐term catheterization (high certainty).

1 finding from 1 review

Femoral vs internal jugular insertion: short‐term catheterization

Catheter‐related infectious complications ‐ Catheter colonization · critically ill patients who were expected to require support with renal replacement therapy

Femoral showed no clear difference in catheter‐related infectious complications ‐ Catheter colonization compared with internal jugular insertion: short‐term catheterization (moderate certainty).

1 finding from 1 review

Femoral vs internal jugular insertion: short‐term catheterization

Catheter‐related blood stream infection · critically ill patients who were expected to require support with renal replacement therapy

Femoral showed no clear difference in catheter‐related infectious complications ‐ Catheter related… compared with internal jugular insertion: short‐term catheterization (moderate certainty).

1 finding from 1 review

Femoral vs internal jugular insertion: short‐term catheterization

Catheter‐related infectious complication ‐ Subgroup Analysis for the effect of BMI on catheter colonization ‐ Highest BMI tercile (>28.4) · critically ill patients who were expected to require support with renal replacement therapy

Femoral probably leads to higher catheter‐related infectious complication ‐ Subgroup Analysis for the… compared with internal jugular insertion: short‐term catheterization (moderate certainty).

1 finding from 1 review

Femoral vs internal jugular insertion: short‐term catheterization

Catheter‐related thrombotic complications ‐ Symptomatic deep venous thrombosis · critically ill patients who were expected to require support with renal replacement therapy

Femoral showed no clear difference in catheter‐related thrombotic complications ‐ Symptomatic deep venous… compared with internal jugular insertion: short‐term catheterization (moderate certainty).

1 finding from 1 review

Femoral vs internal jugular insertion: short‐term catheterization

Catheter‐related thrombosis at any time during catheter stay · critically ill patients who were expected to require support with renal replacement therapy

Femoral showed no clear difference in catheter‐related thrombotic complications ‐ Catheter related… compared with internal jugular insertion: short‐term catheterization (moderate certainty).

1 finding from 1 review

Femoral vs internal jugular insertion: short‐term catheterization

Immediate mechanical complications ‐ Total mechanical complications · critically ill patients who were expected to require support with renal replacement therapy

Femoral probably leads to lower immediate mechanical complications ‐ Total mechanical complications compared with internal jugular insertion: short‐term catheterization (moderate certainty).

1 finding from 1 review

Femoral vs internal jugular insertion: short‐term catheterization

Immediate mechanical complications ‐ Major mechanical complications · critically ill patients who were expected to require support with renal replacement therapy

Femoral showed no clear difference in immediate mechanical complications ‐ Major mechanical complications compared with internal jugular insertion: short‐term catheterization (moderate certainty).

1 finding from 1 review

Femoral vs subclavian insertion: short‐term catheterization

Catheter‐related infectious complications ‐ Catheter colonization · critically ill patients

Femoral leads to higher catheter‐related infectious complications ‐ Catheter colonization compared with subclavian insertion: short‐term catheterization (high certainty).

1 finding from 1 review

Femoral vs subclavian insertion: short‐term catheterization

Catheter‐related blood stream infection · critically ill patients

Femoral showed no clear difference in catheter‐related infectious complications ‐ Catheter‐related… compared with subclavian insertion: short‐term catheterization (high certainty).

1 finding from 1 review

Oral steroids vs placebo

Hearing ‐ return to normal *Ventilation tubes versus laser myringotomy (6 to 12 months ‐ medium‐term) Adjusted for non‐independence of within‐individual measurements Assumed ICC of 0.5 № of participants: 132 (2 RCTs) · children aged 6 months to 12 years with otitis media with effusion (OME)

Oral steroids showed no clear difference in hearing ‐ return to normal hearing compared with placebo (moderate certainty).

1 finding from 1 review