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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. Each row links to its question's own page, which gathers every review that asked it, however worded; see the questions asked by more than one review.

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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.

Question	Effect	Evidence	Status / GRADE
Surgery fee waiver with/without transport provision or reimbursement to improve access to cataract surgical services vs standard care Service utilisation: uptake of referral · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Surgery fee waiver with/without transport provision or reimbursement to improve access to cataract surgical services vs standard care Cataract Surgical Coverage · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Surgery fee waiver with/without transport provision or reimbursement to improve access to cataract surgical services vs standard care Surgical outcome (visual acuity in the operated eye) · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Surgery fee waiver with/without transport provision or reimbursement to improve access to cataract surgical services vs standard care Adverse events · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Information video and counselling to improve access to cataract surgical services vs standard care Prevalence of visual impairment due to cataract · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Information video and counselling to improve access to cataract surgical services vs standard care Cataract Surgical Coverage · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Information video and counselling to improve access to cataract surgical services vs standard care Surgical outcome (visual acuity in the operated eye) · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Information video and counselling to improve access to cataract surgical services vs standard care Adverse events · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Surgery fee waiver with/without transport provision or reimbursement to improve access to cataract surgical services vs standard care Change in the prevalence of cataract blindness · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
Surgery fee waiver with/without transport provision or reimbursement to improve access to cataract surgical services vs standard care Prevalence of visual impairment due to cataract · people with vision impairment caused by cataract Interventions to improve access to cataract surgical services and their impact on equity in low‐ and… (2017) · Cochrane	no estimate extracted	NR	No studies
External beam radiotherapy (EBRT) vs transarterial chemoembolisation (TACE) Elevated alanine aminotransferase · people with unresectable hepatocellular carcinoma External beam radiotherapy for unresectable hepatocellular carcinoma (2017) · Cochrane	no estimate extracted	NR	No studies
External beam radiotherapy (EBRT) vs transarterial chemoembolisation (TACE) Elevated total bilirubin · people with unresectable hepatocellular carcinoma External beam radiotherapy for unresectable hepatocellular carcinoma (2017) · Cochrane	no estimate extracted	NR	No studies
External beam radiotherapy (EBRT) plus transarterial chemoembolisation (TACE) vs TACE alone Health‐related quality of life · people with unresectable hepatocellular carcinoma External beam radiotherapy for unresectable hepatocellular carcinoma (2017) · Cochrane	no estimate extracted	NR	No studies
External beam radiotherapy (EBRT) plus transarterial chemoembolisation (TACE) vs TACE alone Serious adverse events · people with unresectable hepatocellular carcinoma External beam radiotherapy for unresectable hepatocellular carcinoma (2017) · Cochrane	no estimate extracted	NR	No studies
External beam radiotherapy (EBRT) vs transarterial chemoembolisation (TACE) Serious adverse events · people with unresectable hepatocellular carcinoma External beam radiotherapy for unresectable hepatocellular carcinoma (2017) · Cochrane	no estimate extracted	NR	No studies
Foam dressing vs hydrogel dressing Quality of life · people of any age with an existing pressure ulcer of Category/Stage II or above Foam dressings for treating pressure ulcers (2017) · Cochrane	no estimate extracted	NR	No studies
Foam dressings vs basic contact dressings Quality of life · people of any age with an existing pressure ulcer Category/Stage II or above Foam dressings for treating pressure ulcers (2017) · Cochrane	no estimate extracted	NR	No studies
Hydropolymer foam dressing vs silicone foam dressing Time to complete healing · people of any age with an existing pressure ulcer of Category/Stage II or above Foam dressings for treating pressure ulcers (2017) · Cochrane	no estimate extracted	NR	No studies
Hydropolymer foam dressing vs silicone foam dressing Quality of life · people of any age with an existing pressure ulcer of Category/Stage II or above Foam dressings for treating pressure ulcers (2017) · Cochrane	no estimate extracted	NR	No studies
Foam dressings vs hydrocolloid dressings Time to complete healing · people of any age with an existing pressure ulcer of Category/Stage II or above Foam dressings for treating pressure ulcers (2017) · Cochrane	no estimate extracted	NR	No studies
Foam dressings vs hydrocolloid dressings Quality of life · people of any age with an existing pressure ulcer of Category/Stage II or above Foam dressings for treating pressure ulcers (2017) · Cochrane	no estimate extracted	NR	No studies
Ursodeoxycholic acid vs placebo Cholecystectomy · people with primary sclerosing cholangitis Pharmacological interventions for primary sclerosing cholangitis (2017) · Cochrane	no estimate extracted	NR	No studies
Ursodeoxycholic acid vs placebo Serious adverse events · people with primary sclerosing cholangitis Pharmacological interventions for primary sclerosing cholangitis (2017) · Cochrane	no estimate extracted	NR	No studies
Ursodeoxycholic acid vs placebo Number of adverse events · people with primary sclerosing cholangitis Pharmacological interventions for primary sclerosing cholangitis (2017) · Cochrane	no estimate extracted	NR	No studies
Ursodeoxycholic acid vs placebo Any malignancy · people with primary sclerosing cholangitis Pharmacological interventions for primary sclerosing cholangitis (2017) · Cochrane	no estimate extracted	NR	No studies
Ursodeoxycholic acid vs placebo Colorectal cancer · people with primary sclerosing cholangitis Pharmacological interventions for primary sclerosing cholangitis (2017) · Cochrane	no estimate extracted	NR	No studies
Fetal growth (biometry) + umbilical artery Doppler vs fetal growth Birth less than 28 weeks · women with twin pregnancies were randomised from 25 weeks Regimens of ultrasound surveillance for twin pregnancies for improving outcomes (2017) · Cochrane	no estimate extracted	NR	No studies
Intervention NR Long‐term mortality · people with acute pancreatitis Pharmacological interventions for acute pancreatitis (2017) · Cochrane	no estimate extracted	NR	No studies
Intervention NR Health‐related quality of life · people with acute pancreatitis Pharmacological interventions for acute pancreatitis (2017) · Cochrane	no estimate extracted	NR	No studies
Summary of findings: liposomal bupivacaine vs bupivacaine hydrochloride Time to first postoperative opioid dose over initial 72 hours · aged 18 years and older undergoing elective surgery at any surgical site Liposomal bupivacaine infiltration at the surgical site for the management of postoperative pain (2017) · Cochrane	no estimate extracted	NR	No studies
Summary of findings: liposomal bupivacaine vs placebo Mean pain score at 12, 24, 48, 72 and 96 hours following surgery (NRS 0 to 10) · aged 18 years and older undergoing elective surgery at any surgical site Liposomal bupivacaine infiltration at the surgical site for the management of postoperative pain (2017) · Cochrane	no estimate extracted	NR	No studies
Health promotion activities vs no intervention Long‐term tuberculosis prevalence · all age groups Interventions to increase tuberculosis case detection at primary healthcare or community‐level services (2017) · Cochrane	no estimate extracted	NR	No studies
Health promotion activities vs no intervention Treatment success · all age groups Interventions to increase tuberculosis case detection at primary healthcare or community‐level services (2017) · Cochrane	no estimate extracted	NR	No studies
Health promotion activities vs no intervention Tuberculosis mortality · all age groups Interventions to increase tuberculosis case detection at primary healthcare or community‐level services (2017) · Cochrane	no estimate extracted	NR	No studies
High‐dose vs low‐dose rFVIIa AJBR · adults and children with hemophilia A or B with inhibitors Bypassing agent prophylaxis in people with hemophilia A or B with inhibitors (2017) · Cochrane	no estimate extracted	NR	No studies
High‐dose vs low‐dose rFVIIa Quality of life · adults and children with hemophilia A or B with inhibitors Bypassing agent prophylaxis in people with hemophilia A or B with inhibitors (2017) · Cochrane	no estimate extracted	NR	No studies
EMDR vs waiting list/usual care Symptoms of co‐morbid psychosis: 1. Overall mental state · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
EMDR vs waiting list/usual care Anxiety symptoms · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
EMDR vs waiting list/usual care Depressive symptoms · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
EMDR vs waiting list/usual care Health economics · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs EMDR Quality of life: 1. General quality of life · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs EMDR Symptoms of co‐morbid psychosis: 1. Overall mental state · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs EMDR Anxiety symptoms · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs EMDR Depressive symptoms · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs EMDR Adverse events ‐ incidents of unspecified severe events ‐ medium term · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs EMDR Health economics · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs Brief PTSD psychoeducation Symptoms of co‐morbid psychosis: 1. Overall mental state · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs Brief PTSD psychoeducation Anxiety symptoms · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs Brief PTSD psychoeducation Depressive symptoms · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies
Individual TF‐CBT vs Brief PTSD psychoeducation Adverse events ‐ incidents of unspecified severe adverse events · Adults with co‐morbid PTSD and SMI Psychological interventions for post‐traumatic stress disorder (PTSD) in people with severe mental illness (2017) · Cochrane	no estimate extracted	NR	No studies