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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Every word you type has to appear somewhere in the question, and the closest matches are ranked first.

Limit to evidence status or GRADE (optional)

75,239 questions in 5,342 reviews

current versions
No studies 15,213 · 20.2%Ungraded 10,323 · 13.7%Very low 17,528 · 23.3%Low 17,951 · 23.9%Moderate 11,190 · 14.9%High 3,034 · 4%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Zinc vs placebo
Mental Development Index BSID II. Scale from: 0 to 100 · infants and children
Zinc supplementation for mental and motor development in children (2012) · Cochrane
no estimate extracted8 studies · 2134 participantsModerate
Zinc vs placebo
Psychomotor Development Index BSID II. Scale from: 0 to 100 · infants and children
Zinc supplementation for mental and motor development in children (2012) · Cochrane
no estimate extracted8 studies · 2134 participantsModerate
Zinc vs placebo
Cognition scores · infants and children
Zinc supplementation for mental and motor development in children (2012) · Cochrane
no estimate extractedNRNo studies
Zinc vs placebo
Intelligence quotient · infants and children
Zinc supplementation for mental and motor development in children (2012) · Cochrane
no estimate extractedNRNo studies
Zinc vs placebo
Adverse effects · infants and children
Zinc supplementation for mental and motor development in children (2012) · Cochrane
no estimate extractedNRNo studies
Rheum officinale vs no treatment
Incidence of ESKD Analysis method, calculated by regression analysis: 1/SCr versus time. · Patients with chronic kidney disease
Rheum officinale (a traditional Chinese medicine) for chronic kidney disease (2012) · Cochrane
RR 0.53 [0.28, 1]2 studies · 124 participantsLow
Rheum officinale vs captopril
Full time working capacity Unclear quality of life scale · Patients chronic kidney disease
Rheum officinale (a traditional Chinese medicine) for chronic kidney disease (2012) · Cochrane
RR 1.02 [0.39, 2.71]1 study · 20 participantsLow
Rheum officinale vs captopril
Part‐time working capacity Unclear quality of life scale · Patients chronic kidney disease
Rheum officinale (a traditional Chinese medicine) for chronic kidney disease (2012) · Cochrane
RR 1.64 [0.38, 6.98]1 study · 20 participantsLow
Anti‐leukaemic therapy plus alemtuzumab vs anti‐leukaemic therapy alone (anti‐leukaemic therapy identical
Overall survival (median 2 years) · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
HR 0.65 [0.45, 0.94]1 study · 335 participantsModerate
Anti‐leukaemic therapy with alemtuzumab vs anti‐leukaemic therapy without alemtuzumab (anti‐leukaemic therapy not identical
Treament related mortality · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
RR 3.2 [0.66, 15.5]2 studies · 177 participantsLow
Anti‐leukaemic therapy with alemtuzumab vs anti‐leukaemic therapy without alemtuzumab (anti‐leukaemic therapy not identical
Complete response rate · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
RR 0.85 [0.67, 1.08]2 studies · 170 participantsModerate
Anti‐leukaemic therapy plus alemtuzumab vs anti‐leukaemic therapy alone (anti‐leukaemic therapy identical
Progression free survival (median 2 years) · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
HR 0.61 [0.47, 0.81]2 studies · 356 participantsLow
Anti‐leukaemic therapy plus alemtuzumab vs anti‐leukaemic therapy alone (anti‐leukaemic therapy identical
Treatment related mortality · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
RR 0.57 [0.17, 1.9]2 studies · 356 participantsModerate
Anti‐leukaemic therapy plus alemtuzumab vs anti‐leukaemic therapy alone (anti‐leukaemic therapy identical
Cytomegalovirus reactivation · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
RR 10.52 [1.42, 77.68]2 studies · 350 participantsHigh
Anti‐leukaemic therapy plus alemtuzumab vs anti‐leukaemic therapy alone (anti‐leukaemic therapy identical
Complete response rate · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
RR 2.61 [1.26, 5.42]2 studies · 356 participantsLow
Anti‐leukaemic therapy plus alemtuzumab vs anti‐leukaemic therapy alone (anti‐leukaemic therapy identical
Infections (all grades) · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
RR 1.32 [1.01, 1.74]2 studies · 356 participantsLow
Anti‐leukaemic therapy plus alemtuzumab vs anti‐leukaemic therapy alone (anti‐leukaemic therapy identical
Serious adverse events · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
RR 1.34 [0.95, 1.89]2 studies · 350 participantsModerate
Anti‐leukaemic therapy with alemtuzumab vs anti‐leukaemic therapy without alemtuzumab (anti‐leukaemic therapy not identical
Overall survival not reported · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
no estimate extractedNRNo studies
Anti‐leukaemic therapy with alemtuzumab vs anti‐leukaemic therapy without alemtuzumab (anti‐leukaemic therapy not identical
Progression free survival not reported · patients with chronic lymphocytic leukaemia
Alemtuzumab for patients with chronic lymphocytic leukaemia (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
OS (at 3 years) · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
HR 0.78 [0.62, 0.98]3 studies · 1421 participantsHigh
Intervention NR
TRM · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
RR 0.31 [0.06, 1.51]2 studies · 177 participantsLow
Intervention NR
PFS (at 3 years) · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
HR 0.64 [0.55, 0.74]3 studies · 1421 participantsModerate
Intervention NR
TRM · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
RR 1.19 [0.7, 2.01]3 studies · 1415 participantsModerate
Intervention NR
SAEs ‐ overall analysis · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
RR 1.05 [0.89, 1.23]2 studies · 598 participantsLow
Intervention NR
Grade 3/4 AEs ‐ overall analysis · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
RR 1.15 [1.08, 1.23]3 studies · 1398 participantsModerate
Intervention NR
OS not reported · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
PFS not reported · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Time to next treatment · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
CRR · newly diagnosed or relapsed patients with CLL
Rituximab, ofatumumab and other monoclonal anti‐CD20 antibodies for chronic lymphocytic leukaemia (2012) · Cochrane
RR 1.18 [0.93, 1.49]2 studies · 170 participantsModerate
Intervention NR
Diabetic complications · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Ketoacidosis · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
RR 0.85 [0.32, 2.26]5 studies · 689 participantsLow
Intervention NR
Quality of life ‐ Physical health domain SF‐12 · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extracted1 study · 226 participantsVery low
Intervention NR
Quality of life ‐ Mental health domain SF‐12 · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extracted1 study · 226 participantsVery low
Intervention NR
Quality of life ‐ Parents SF‐12 · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extracted1 study · 226 participantsVery low
Intervention NR
Change in HbA1c (%) · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extracted6 studies · 963 participantsModerate
Intervention NR
Severe hypoglycaemia · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
RR 3.26 [0.38, 27.82]1 study · 78 participantsVery low
Intervention NR
Ketoacidosis · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
RR 2.45 [0.1, 58.45]1 study · 78 participantsVery low
Intervention NR
Quality of life ‐ Various features · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extracted5 studies · 412 participantsUngraded
Intervention NR
Quality of life ‐ Physical health domain SF‐36 Short form · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extracted1 study · 75 participantsVery low
Intervention NR
Quality of life ‐ Mental health domain SF‐36 Short form · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extracted1 study · 75 participantsVery low
Intervention NR
Change in HbA1c (%) · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extracted2 studies · 562 participantsModerate
Intervention NR
Diabetic complications · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Severe hypoglycaemia · patients with type 1 diabetes mellitus
Continuous glucose monitoring systems for type 1 diabetes mellitus (2012) · Cochrane
RR 1.05 [0.63, 1.77]5 studies · 689 participantsLow
Intervention NR
Total Successful Intubation Rate · patients with
Transparent Cap Colonoscopy versus Standard Colonoscopy to Improve Caecal Intubation (2012) · Cochrane
OR 1.36 [0.95, 1.93]12 studies · 5932 participantsModerate
Intervention NR
All cause mortality ‐ 30 days · Prevention and treatment of infectious complications in patients with acute myelogenous leukemia
Colony‐stimulating factors for prevention and treatment of infectious complications in patients with acute… (2012) · Cochrane
RR 0.97 [0.8, 1.18]11 studies · 3319 participantsLow
Intervention NR
Bacteremia · Prevention and treatment of infectious complications in patientswith acute myelogenous leukemia
Colony‐stimulating factors for prevention and treatment of infectious complications in patients with acute… (2012) · Cochrane
RR 0.96 [0.82, 1.12]7 studies · 1638 participantsModerate
Intervention NR
Very wide CI · Prevention and treatment of infectious complications in patientswith acute myelogenous leukemia
Colony‐stimulating factors for prevention and treatment of infectious complications in patients with acute… (2012) · Cochrane
no estimate extracted1 participantsUngraded
Intervention NR
Invasive fungal infection · Prevention and treatment of infectious complications in patientswith acute myelogenous leukemia
Colony‐stimulating factors for prevention and treatment of infectious complications in patients with acute… (2012) · Cochrane
RR 1.4 [0.9, 2.19]4 studies · 929 participantsLow
Intervention NR
Episodes of febrile neutropenia · patients with prevention and treatment of infectious complications in patients with acute myelogenous leukemia
Colony‐stimulating factors for prevention and treatment of infectious complications in patients with acute… (2012) · Cochrane
RR 0.98 [0.94, 1.03]9 studies · 2140 participantsModerate
Intervention NR
Adverse events requiring discontinuation of CSFs · Prevention and treatment of infectious complications in patients with acute myelogenous leukemia
Colony‐stimulating factors for prevention and treatment of infectious complications in patients with acute… (2012) · Cochrane
RR 1.33 [1, 1.76]4 studies · 770 participantsVery low