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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. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

15,213 questions in 2,394 reviews

current versions
No studies 15,213 · 100%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

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
Home‐based record combined with other interventions vs routine care
Occurrence of vaccine‐preventable diseases · children aged 1 year
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home‐based record combined with other interventions vs routine care
Cost of the intervention presented narratively in 2 studies · children aged 1 year
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home‐based record combined with other interventions vs routine care
Adverse events · children aged 1 year
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Digital register vs routine care
Proportion of children under 5 years of age fully immunised with all scheduled vaccines · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Digital register vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Digital register vs routine care
Cost of the intervention · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Digital register vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Phone call/SMS with/without combination with monetary incentives vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Phone call/SMS with/without combination with monetary incentives vs routine care
Cost of the intervention ‐ reported narratively for 2 studiesk · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Phone call/SMS with/without combination with monetary incentives vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Proportion of children who received all recommended vaccines by 2 years of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Proportion of children under 5 years of age fully immunised with all scheduled vaccines · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Cost of the intervention ‐ reported narratively for 1 study · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Proportion of children who received DTP3 or Penta 3 by 1 year of age · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Proportion of children who received the vaccine under study (BCG) · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Proportion of children under 5 years of age fully immunised with all scheduled vaccines · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Occurrence of vaccine‐preventable diseases · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Cost of the intervention · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Adverse events · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Proportion of children who received DTP3 or Penta 3 by 1 year of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Number of children under 5 years of age fully immunised with all scheduled vaccines ‐ not reported · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Cost of the intervention · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Immunisation outreach vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Immunisation outreach vs routine care
Cost of the intervention ‐ reported narratively in one studyc · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Immunisation outreach vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Integration of immunisation with other health services vs routine care
Proportion of children under 5 years of age fully immunised with all scheduled vaccines · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Integration of immunisation with other health services vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Integration of immunisation with other health services vs routine care
Cost of the intervention · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Integration of immunisation with other health services vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Engagement of community leaders vs routine care
Proportion of children who received all recommended vaccines by 2 years of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
First‐line thiazides vs first‐line ACE inhibitors
Total serious adverse events · adults with hypertension
First‐line diuretics versus other classes of antihypertensive drugs for hypertension (2023) · Cochrane
no estimate extractedNRNo studies
First‐line thiazides vs first‐line beta‐blockers
Total serious adverse events · adults with hypertension
First‐line diuretics versus other classes of antihypertensive drugs for hypertension (2023) · Cochrane
no estimate extractedNRNo studies
First‐line thiazides vs first‐line alpha‐blockers
Total serious adverse events · adults with hypertension
First‐line diuretics versus other classes of antihypertensive drugs for hypertension (2023) · Cochrane
no estimate extractedNRNo studies
Esomeprazole vs placebo
Adverse events ‐ not reported · GORD in infants
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Esomeprazole vs placebo
pH indices ‐ not measured · GORD in infants
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Esomeprazole vs placebo
Endoscopic metrics ‐ not measured · GORD in infants
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Rabeprazole at higher doses (1 mg/kg) vs rabeprazole at lower doses (0.5 mg/kg)
pH indices ‐ not measured · GORD in children over 1 year of age
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Pantoprazole in higher doses (1.2 mg/kg) vs pantoprazole at lower doses (0.3 mg/kg)
Improvement in pH indices ‐ not measured · GORD in children over 1 year of age
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Omeprazole vs placebo
Adverse events ‐ not reported · infants with GORD
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Pantoprazole in higher doses (1.2 mg/kg) vs pantoprazole at lower doses (0.3 mg/kg)
Improvement in endoscopic metrics ‐ not measured · GORD in children over 1 year of age
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Omeprazole vs placebo
Endoscopic metrics ‐ not measured · infants with GORD
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Omeprazole vs ranitidine
Adverse events in infants ‐ not measured · GORD in infants
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Omeprazole vs ranitidine
Improvement in pH metrics in infants ‐ not measured · GORD in infants
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Omeprazole vs ranitidine
Improvement in endoscopic findings in infants ‐ not measured · GORD in infants
Pharmacological treatment of gastro‐oesophageal reflux in children (2023) · Cochrane
no estimate extractedNRNo studies
Statin vs placebo
Resumption of spontaneous ovulation · women with polycystic ovary syndrome not actively trying to conceive
Statins for women with polycystic ovary syndrome not actively trying to conceive (2023) · Cochrane
no estimate extractedNRNo studies
Statin vs metformin
Resumption of spontaneous ovulation · women with polycystic ovary syndrome not actively trying to conceive
Statins for women with polycystic ovary syndrome not actively trying to conceive (2023) · Cochrane
no estimate extractedNRNo studies