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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.
15,213 questions in 2,394 reviews
current versionsNo 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.
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Surgical treatment vs radiological treatment Quality of life · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Surgical treatment vs other surgical treatment Live birth · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Surgical treatment vs other surgical treatment Adverse events · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Surgical treatment vs other surgical treatment Pregnancy · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Surgical treatment vs other surgical treatment Varicocele recurrence · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Surgical treatment vs other surgical treatment Quality of life · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Radiological treatment vs radiological treatment Live birth · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Radiological treatment vs radiological treatment Adverse events · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Radiological treatment vs radiological treatment Pregnancy · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Varicocele treatment vs non‐surgical, delayed, or no treatment Adverse events · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Radiological treatment vs radiological treatment Quality of life · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Varicocele treatment vs non‐surgical, delayed, or no treatment Varicocele recurrence · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Varicocele treatment vs non‐surgical, delayed, or no treatment Quality of life · Varicoceles in subfertile men Surgical or radiological treatment for varicoceles in subfertile men (2021) · Cochrane | no estimate extracted | NR | No studies |
Valvuloplasty plus surgery of the superficial venous system vs surgery of the superficial venous system Ulcer healing and recurrence · people with non‐severe primary valvular incompetence Surgery for deep venous insufficiency (2021) · Cochrane | no estimate extracted | NR | No studies |
Prophylactic CPAP vs very early CPAP Failed treatment · preterm infants Prophylactic or very early initiation of continuous positive airway pressure (CPAP) for preterm infants (2021) · Cochrane | no estimate extracted | NR | No studies |
Prophylactic CPAP vs very early CPAP Combined outcome of death and bronchopulmonary dysplasia · preterm infants Prophylactic or very early initiation of continuous positive airway pressure (CPAP) for preterm infants (2021) · Cochrane | no estimate extracted | NR | No studies |
Prophylactic CPAP vs very early CPAP Intraventricular haemorrhage grade 3 or 4 · preterm infants Prophylactic or very early initiation of continuous positive airway pressure (CPAP) for preterm infants (2021) · Cochrane | no estimate extracted | NR | No studies |
Prophylactic CPAP vs very early CPAP Neurodevelopmental impairment · preterm infants Prophylactic or very early initiation of continuous positive airway pressure (CPAP) for preterm infants (2021) · Cochrane | no estimate extracted | NR | No studies |
Prophylactic or very early CPAP vs supportive care Neurodevelopmental impairment · preterm infants Prophylactic or very early initiation of continuous positive airway pressure (CPAP) for preterm infants (2021) · Cochrane | no estimate extracted | NR | No studies |
Oxytocin solution vs plasma expander Maternal mortality · management of retained placenta Umbilical vein injection for management of retained placenta (2021) · Cochrane | no estimate extracted | NR | No studies |
Oxytocin solution vs plasma expander Blood transfusion · management of retained placenta Umbilical vein injection for management of retained placenta (2021) · Cochrane | no estimate extracted | NR | No studies |
Oxytocin solution vs plasma expander Additional therapeutic uterotonics · management of retained placenta Umbilical vein injection for management of retained placenta (2021) · Cochrane | no estimate extracted | NR | No studies |
Oxytocin solution vs plasma expander Need for treatment with antibiotics (infection) · management of retained placenta Umbilical vein injection for management of retained placenta (2021) · Cochrane | no estimate extracted | NR | No studies |
Oxytocin solution vs plasma expander Maternal postpartum anaemia (haemoglobin 24–48 hours postpartum) · management of retained placenta Umbilical vein injection for management of retained placenta (2021) · Cochrane | no estimate extracted | NR | No studies |
Saline solution vs expectant management Addition of therapeutic uterotonics · management of retained placenta Umbilical vein injection for management of retained placenta (2021) · Cochrane | no estimate extracted | NR | No studies |
Medical or surgical intervention, or both, for gastro‐oesophageal reflux disease vs nil intervention, delayed intervention control, or placebo Healthcare utilisation ‐ not measured · treatment for asthma in adults and children with asthma and GORD Pharmacological and surgical interventions for the treatment of gastro‐oesophageal reflux in adults and… (2021) · Cochrane | no estimate extracted | NR | No studies |
Antenatal (± postnatal) prophylaxis: heparin (LMWH or UFH) vs no treatment/placebo Maternal death · pregnant women at increased risk of VTE during pregnancy and the early postnatal period Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period (2021) · Cochrane | no estimate extracted | NR | No studies |
Peripartum/postnatal prophylaxis: UFH vs no treatment Maternal death · women with varicose veins before birth, having a caesarean (elective or emergency) or vaginal birth Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period (2021) · Cochrane | no estimate extracted | NR | No studies |
Peripartum/postnatal prophylaxis: UFH vs no treatment Adverse effects sufficient to stop treatment · women with varicose veins before birth, having a caesarean (elective or emergency) or vaginal birth Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period (2021) · Cochrane | no estimate extracted | NR | No studies |
Peripartum/postnatal prophylaxis (caesarean): LMWH vs UFH Maternal death · women giving birth by elective or emergency caesarean (elective or emergency (1 trial), elective cesarean only (1… Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period (2021) · Cochrane | no estimate extracted | NR | No studies |
Peripartum/postnatal prophylaxis (caesarean): LMWH vs UFH Adverse effects sufficient to stop treatment · women giving birth by elective or emergency caesarean (elective or emergency (1 trial), elective cesarean only (1… Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period (2021) · Cochrane | no estimate extracted | NR | No studies |
Postnatal prophylaxis: LMWH vs no treatment/placebo Adverse effects sufficient to stop treatment · women at increased risk of VTE in the early postpartum period Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period (2021) · Cochrane | no estimate extracted | NR | No studies |
Antenatal (± postnatal) prophylaxis: LMWH vs UFH Maternal death · pregnant women at increased risk of VTE during pregnancy and the early postnatal period Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam sclerotherapy vs foam sclerotherapy QoL · participants with varicose veinsa Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam sclerotherapy vs foam sclerotherapy Persistence of symptoms · participants with varicose veinsa Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam sclerotherapy vs liquid sclerotherapy Complications ‐ DVT · participants with varicose veinsa Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam sclerotherapy vs liquid sclerotherapy QoL · participants with varicose veinsa Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam sclerotherapy vs liquid sclerotherapy Persistence of symptoms · participants with varicose veinsa Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Sclerotherapy vs sclerotherapy with different substances Cosmetic appearance · participants with varicose veinsb Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Sclerotherapy vs sclerotherapy with different substances Complications ‐ DVT · participants with varicose veinsb Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Sclerotherapy vs sclerotherapy with different substances Residual varicose veins · participants with varicose veinsb Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Sclerotherapy vs sclerotherapy with different substances QoL · participants with varicose veinsb Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Sclerotherapy vs sclerotherapy with different substances Persistence of symptoms · participants with varicose veinsb Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Sclerotherapy vs sclerotherapy with different substances Recurrent varicose veins · participants with varicose veinsb Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Foam sclerotherapy vs placebo Recurrent varicose veins · participants with varicose veinsa Injection sclerotherapy for varicose veins (2021) · Cochrane | no estimate extracted | NR | No studies |
Passive information provision vs control Positive mental well‐being · stroke survivors Information provision for stroke survivors and their carers (2021) · Cochrane | no estimate extracted | NR | No studies |
Passive information provision vs control Anxiety (cases) ‐ not measured · stroke carers Information provision for stroke survivors and their carers (2021) · Cochrane | no estimate extracted | NR | No studies |
Passive information provision vs control Depression (cases) ‐ not measured · stroke carers Information provision for stroke survivors and their carers (2021) · Cochrane | no estimate extracted | NR | No studies |
Passive information provision vs control Positive mental well‐being · stroke carers Information provision for stroke survivors and their carers (2021) · Cochrane | no estimate extracted | NR | No studies |
Passive information provision vs control Quality of life ‐ not measured · stroke carers Information provision for stroke survivors and their carers (2021) · Cochrane | no estimate extracted | NR | No studies |