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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)

1,751 questions in 147 reviews · Pain, Palliative and Supportive Care

current versions
No studies 361 · 20.6%Ungraded 87 · 5%Very low 625 · 35.7%Low 367 · 21%Moderate 232 · 13.2%High 79 · 4.5%

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
Virtual reality distraction vs other VR distraction
Acute pain intensity: observer‐report (during procedure) · children (0‐18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extractedNRNo studies
Virtual reality distraction vs other VR distraction
Acute pain intensity: behavioural measurement (observer‐report) (during procedure) · children (0‐18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extractedNRNo studies
Virtual reality distraction vs other VR distraction
Acute pain intensity: self‐report (post‐procedure) · children (0‐18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extractedNRNo studies
Virtual reality distraction vs other VR distraction
Acute pain intensity: observer‐report (post‐procedure) · children (0‐18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extractedNRNo studies
Virtual reality distraction vs no distraction
Acute pain intensity: observer‐report (during procedure) · children (0 to 18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extractedNRNo studies
Virtual reality distraction vs other VR distraction
Acute pain intensity: behavioural measurement (observer‐report) (post‐procedure) · children (0‐18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extractedNRNo studies
Virtual reality distraction vs other VR distraction
Adverse effects (related to engagement with VR) · children (0‐18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extractedNRNo studies
Virtual reality distraction vs no distraction
Acute pain intensity: behavioural measurement (observer‐report) (during procedure) · children (0 to 18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extracted2 studies · 62 participantsLow
Virtual reality distraction vs no distraction
Acute pain intensity: self‐report (post‐procedure) · children (0 to 18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extracted10 studies · 461 participantsVery low
Virtual reality distraction vs no distraction
Acute pain intensity: observer‐report (post‐procedure) · children (0 to 18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extracted2 studies · 216 participantsLow
Virtual reality distraction vs no distraction
Acute pain intensity: behavioural measurement (observer‐report) (post‐procedure) · children (0 to 18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extracted1 study · 42 participantsVery low
Virtual reality distraction vs no distraction
Adverse effects (related to engagement with VR) · children (0 to 18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extracted5 studies · 154 participantsVery low
Virtual reality distraction vs non‐VR distraction
Acute pain intensity: self‐report (during procedure) · children (0 to 18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extracted2 studies · 106 participantsVery low
Virtual reality distraction vs non‐VR distraction
Acute pain intensity: observer‐report (during procedure) · children (0 to 18 years)
Virtual reality distraction for acute pain in children (2020) · Cochrane
no estimate extracted2 studies · 106 participantsLow
Hospital‐based specialist palliative care vs usual care
Patient health‐related quality of life (HRQoL)i, SD units(higher scores indicate better quality of life) · adults with advanced illness and their unpaid caregivers/families
The effectiveness and cost‐effectiveness of hospital‐based specialist palliative care for adults with… (2020) · Cochrane
no estimate extracted10 studies · 1344 participantsLow
Hospital‐based specialist palliative care vs usual care
Patient symptom burden · adults with advanced illness and their unpaid caregivers/families
The effectiveness and cost‐effectiveness of hospital‐based specialist palliative care for adults with… (2020) · Cochrane
no estimate extracted6 studies · 761 participantsVery low
Hospital‐based specialist palliative care vs usual care
Patient satisfaction with careiii, SD units(higher scores indicate better patient satisfaction) · adults with advanced illness and their unpaid caregivers/families
The effectiveness and cost‐effectiveness of hospital‐based specialist palliative care for adults with… (2020) · Cochrane
no estimate extracted2 studies · 337 participantsLow
Hospital‐based specialist palliative care vs usual care
Achieving patient preferred place of death (measured by number of patients with home death) · adults with advanced illness and their unpaid caregivers/families
The effectiveness and cost‐effectiveness of hospital‐based specialist palliative care for adults with… (2020) · Cochrane
OR 1.637 studies · 861 participantsLow
Hospital‐based specialist palliative care vs usual care
Painiv, SD units(lower scores indicate less pain) · adults with advanced illness and their unpaid caregivers/families
The effectiveness and cost‐effectiveness of hospital‐based specialist palliative care for adults with… (2020) · Cochrane
no estimate extracted4 studies · 525 participantsVery low
Hospital‐based specialist palliative care vs usual care
Unpaid caregiver burdenv · adults with advanced illness and their unpaid caregivers/families
The effectiveness and cost‐effectiveness of hospital‐based specialist palliative care for adults with… (2020) · Cochrane
no estimate extracted2 studies · 170 participantsVery low
Hospital‐based specialist palliative care vs usual care
Cost and cost‐effectiveness · adults with advanced illness and their unpaid caregivers/families
The effectiveness and cost‐effectiveness of hospital‐based specialist palliative care for adults with… (2020) · Cochrane
no estimate extracted13 studies · 2103 participantsVery low
Pregabalin 300 mg vs placebo
At least 30% pain intensity reduction · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted3 studies · 589 participantsModerate
Pregabalin 600 mg vs placebo
Patient Global Impression of Change ‐ much or very much improved · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extractedNRVery low
Pregabalin 600 mg vs placebo
Lack of efficacy withdrawal · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted4 studies · 732 participantsHigh
Pregabalin 600 mg vs placebo
Somnolence · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted4 studies · 732 participantsModerate
Pregabalin 600 mg vs placebo
Dizziness · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted4 studies · 732 participantsModerate
Pregabalin 600 mg vs placebo
Adverse event withdrawal · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted4 studies · 732 participantsHigh
Pregabalin 300 mg vs placebo
At least 30% pain intensity reduction · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted8 studies · 2320 participantsModerate
Pregabalin 300 mg vs placebo
At least 50% pain intensity reduction · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted11 studies · 2931 participantsModerate
Pregabalin 300 mg vs placebo
Patient Global Impression of Change ‐ much or very much improved · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted5 studies · 1050 participantsModerate
Pregabalin 300 mg vs placebo
Patient Global Impression of Change ‐ very much improved · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted2 studies · 501 participantsLow
Pregabalin 300 mg vs placebo
Lack of efficacy withdrawal · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted10 studies · 2430 participantsHigh
Pregabalin 300 mg vs placebo
At least 50% pain intensity reduction · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted4 studies · 713 participantsModerate
Pregabalin 300 mg vs placebo
Somnolence · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted12 studies · 3315 participantsModerate
Pregabalin 300 mg vs placebo
Dizziness · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted12 studies · 3315 participantsModerate
Pregabalin 300 mg vs placebo
Adverse event withdrawal · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted13 studies · 3384 participantsHigh
Pregabalin 600 mg vs placebo
At least 30% pain intensity reduction · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted3 studies · 789 participantsModerate
Pregabalin 600 mg vs placebo
At least 50% pain intensity reduction · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted7 studies · 1360 participantsModerate
Pregabalin 600 mg vs placebo
Patient Global Impression of Change ‐ much or very much improved · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted3 studies · 537 participantsModerate
Pregabalin 600 mg vs placebo
Lack of efficacy withdrawal · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted5 studies · 879 participantsHigh
Pregabalin 600 mg vs placebo
Somnolence · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted7 studies · 1501 participantsModerate
Pregabalin 600 mg vs placebo
Dizziness · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted8 studies · 1885 participantsModerate
Pregabalin 600 mg vs placebo
Adverse event withdrawal · adults with moderate or severe pain associated with painful diabetic neuropathy
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted8 studies · 1669 participantsHigh
Pregabalin 300 mg vs placebo
Patient Global Impression of Change ‐ much or very much improved · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted3 studies · 568 participantsLow
Pregabalin 300 mg or 600 mg vs placebo
mg pregabalin · adults with moderate or severe neuropathic pain
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted300 participantsUngraded
Pregabalin 300 mg or 600 mg vs placebo
At least 1 AE · adults with moderate or severe neuropathic pain
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted15 studies · 3697 participantsHigh
Pregabalin 300 mg or 600 mg vs placebo
Serious AE · adults with moderate or severe neuropathic pain
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted17 studies · 4112 participantsHigh
Pregabalin 300 mg or 600 mg vs placebo
mg pregabalin · adults with moderate or severe neuropathic pain
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted600 participantsUngraded
Pregabalin 300 mg vs placebo
Lack of efficacy withdrawal · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted5 studies · 933 participantsHigh
Pregabalin 300 mg vs placebo
Somnolence · adults with moderate or severe pain associated with postherpetic neuralgia
Pregabalin for neuropathic pain in adults (2019) · Cochrane
no estimate extracted5 studies · 933 participantsModerate