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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
Ghrelin in combination with other treatments vs ghrelin treatment alone
Food intake · people with cancer cachexia
Ghrelin for the management of cachexia associated with cancer (2018) · Cochrane
no estimate extractedNRVery low
Ghrelin in combination with other treatments vs ghrelin treatment alone
Body weight · people with cancer cachexia
Ghrelin for the management of cachexia associated with cancer (2018) · Cochrane
no estimate extractedNRVery low
Ghrelin in combination with other treatments vs ghrelin treatment alone
Adverse events · people with cancer cachexia
Ghrelin for the management of cachexia associated with cancer (2018) · Cochrane
no estimate extractedNRVery low
Ketorolac vs placebo
Number of participants with 50% or greater postoperative pain relief · children with postoperative pain
Ketorolac for postoperative pain in children (2018) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Ketorolac vs placebo
Postoperative pain intensity · children with postoperative pain
Ketorolac for postoperative pain in children (2018) · Cochrane
no estimate extracted0 studies · 0 participantsVery low
Ketorolac vs placebo
Participants using rescue medication in the PACU · children with postoperative pain
Ketorolac for postoperative pain in children (2018) · Cochrane
RR 0.85 [0.71, 1]4 studies · 262 participantsVery low
Ketorolac vs placebo
Opioid consumption (mg IV morphine equivalents): PACU · children with postoperative pain
Ketorolac for postoperative pain in children (2018) · Cochrane
no estimate extracted3 studies · 162 participantsVery low
Ketorolac vs placebo
Opioid consumption (mg IV morphine equivalents): 0 to 4 h · children with postoperative pain
Ketorolac for postoperative pain in children (2018) · Cochrane
no estimate extracted2 studies · 129 participantsVery low
Ketorolac vs placebo
Serious adverse events · children with postoperative pain
Ketorolac for postoperative pain in children (2018) · Cochrane
no estimate extracted2 studies · 128 participantsVery low
Ketorolac vs placebo
Participants experiencing bleeding events · children with postoperative pain
Ketorolac for postoperative pain in children (2018) · Cochrane
RR 0.99 [0.64, 1.52]5 studies · 258 participantsVery low
Intravenous diclofenac vs placebo
Number of participants with at least 50% pain relief at 4 hours · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 2.8 [2, 4]3 studies · 277 participantsLow
Intravenous diclofenac vs another NSAID
Number of participants using rescue medication over 4 to 6 hours postinterventions · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 1.8 [1, 3.3]1 study · 98 participantsVery low
Intravenous diclofenac vs another NSAID
Number of participants reporting any adverse event · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 0.93 [0.82, 1.1]2 studies · 265 participantsLow
Intravenous diclofenac vs another NSAID
Number of participants experiencing a serious adverse event · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 0.94 [0.13, 6.6]4 studies · 423 participantsLow
Intravenous diclofenac vs placebo
Number of participants with at least 50% pain relief at 6 hours · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 1.8 [1.4, 2.2]4 studies · 436 participantsLow
Intravenous diclofenac vs placebo
Median (or mean) time to use of rescue medication · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
no estimate extracted5 studies · 542 participantsLow
Intravenous diclofenac vs placebo
Number of participants using rescue medication over 4 to 6 hours postinterventions · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 0.59 [0.48, 0.73]2 studies · 235 participantsLow
Intravenous diclofenac vs placebo
Number of participants reporting any adverse event · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 0.99 [0.86, 1.1]2 studies · 296 participantsLow
Intravenous diclofenac vs placebo
Number of participants experiencing a serious adverse event · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 1 [0.15, 7.02]5 studies · 472 participantsLow
Intravenous diclofenac vs another NSAID
Number of participants with at least 50% pain relief at 4 hours · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
no estimate extracted0 participantsUngraded
Intravenous diclofenac vs another NSAID
Number of participants with at least 50% pain relief at 6 hours · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
RR 0.94 [0.83, 1.1]3 studies · 360 participantsLow
Intravenous diclofenac vs another NSAID
Median (or mean) time to use of rescue medication · Adults (mean study ages 25 to 55 years) with acute postoperative pain after dental, mixed minor, abdominal, or…
Single‐dose intravenous diclofenac for acute postoperative pain in adults (2018) · Cochrane
no estimate extracted1 study · 169 participantsVery low
Olanzapine vs placebo/no treatment
No nausea or vomiting over trial period · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
RR 1.98 [1.59, 2.47]NRModerate
Olanzapine vs NK1 antagonist
Participant satisfaction · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
no estimate extractedNRNo studies
Olanzapine vs NK1 antagonist
Quality of life · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
no estimate extractedNRNo studies
Olanzapine vs NK1 antagonist
Patient Global Impression of Change · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
no estimate extractedNRNo studies
Olanzapine vs NK1 antagonist
Other adverse events · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
no estimate extractedNRNo studies
Olanzapine vs NK1 antagonist
Somnolence/fatigue · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
RR 1.33 [0.4, 4.49]NRVery low
Olanzapine vs placebo/no treatment
Serious adverse events · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
RR 2.46 [0.48, 12.55]NRLow
Olanzapine vs placebo/no treatment
Participant preference ‐ wish to use drug in next treatment · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
RR 1.43 [0.97, 2.09]NRModerate
Olanzapine vs placebo/no treatment
Quality of life · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
no estimate extractedNRNo studies
Olanzapine vs placebo/no treatment
Patient Global Impression of Change · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
no estimate extractedNRNo studies
Olanzapine vs placebo/no treatment
Other adverse events · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
RR 1.71 [0.99, 2.96]NRLow
Olanzapine vs placebo/no treatment
Somnolence/fatigue · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
RR 2.33 [1.3, 4.18]NRModerate
Olanzapine vs NK1 antagonist
No nausea or vomiting over trial period · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
no estimate extractedNRNo studies
Olanzapine vs NK1 antagonist
Serious adverse events · adults with cancer
Olanzapine for the prevention and treatment of cancer‐related nausea and vomiting in adults (2018) · Cochrane
RR 0.33 [0.02, 7.32]NRVery low
Mirtazapine vs placebo
Participant‐reported pain relief of 50% or greater (substantial improvement) · adult participants with fibromyalgia
Mirtazapine for fibromyalgia in adults (2018) · Cochrane
RD 0.053 studies · 591 participantsLow
Mirtazapine vs placebo
Safety: serious adverse events · adult participants with fibromyalgia
Mirtazapine for fibromyalgia in adults (2018) · Cochrane
RD 03 studies · 606 participantsVery low
Mirtazapine vs placebo
Tolerability: withdrawals due to adverse events · adult participants with fibromyalgia
Mirtazapine for fibromyalgia in adults (2018) · Cochrane
RD 0.013 studies · 606 participantsLow
Mirtazapine vs placebo
Participant‐reported pain relief of 30% or greater (moderate improvement) · adult participants with fibromyalgia
Mirtazapine for fibromyalgia in adults (2018) · Cochrane
RD 0.13 [0.05, 0.21]3 studies · 591 participantsLow
Mirtazapine vs placebo
Participant‐reported sleep problems (scale: 0 to 28; higher scores indicate more sleep problems) · adult participants with fibromyalgia
Mirtazapine for fibromyalgia in adults (2018) · Cochrane
no estimate extracted3 studies · 573 participantsLow
Mirtazapine vs placebo
Somnolence · adult participants with fibromyalgia
Mirtazapine for fibromyalgia in adults (2018) · Cochrane
RD 0.24 [0.18, 0.3]3 studies · 606 participantsLow
Mirtazapine vs placebo
Weight gain · adult participants with fibromyalgia
Mirtazapine for fibromyalgia in adults (2018) · Cochrane
RD 0.17 [0.11, 0.23]3 studies · 606 participantsLow
Methadone vs Morphine
Participant‐reported pain intensity · people with cancer pain
Methadone for cancer pain (2017) · Cochrane
OR 76103 participantsLow
Methadone vs Morphine
Adverse events: appetite, thirst, somnolence · people with cancer pain
Methadone for cancer pain (2017) · Cochrane
no estimate extracted5 studies · 342 participantsVery low
Ketoprofen 25 mg vs placebo
Participants with ≥ 50% pain relief over 6 hours · adults with moderate or severe acute postoperative pain
Single dose oral ketoprofen or dexketoprofen for acute postoperative pain in adults (2017) · Cochrane
no estimate extracted8 studies · 535 participantsHigh
Ketoprofen 50 mg vs placebo
Participants with a serious adverse event following a single dose · adults with moderate or severe acute postoperative pain
Single dose oral ketoprofen or dexketoprofen for acute postoperative pain in adults (2017) · Cochrane
no estimate extracted9 studies · 688 participantsVery low
Dexketoprofen 10 mg‐12.5 mg vs placebo
Participants with ≥ 50% pain relief over 4‐6 hours · adults with moderate or severe acute postoperative pain
Single dose oral ketoprofen or dexketoprofen for acute postoperative pain in adults (2017) · Cochrane
no estimate extracted5 studies · 480 participantsHigh
Dexketoprofen 10 mg‐12.5 mg vs placebo
Median (mean) time to use of rescue medication · adults with moderate or severe acute postoperative pain
Single dose oral ketoprofen or dexketoprofen for acute postoperative pain in adults (2017) · Cochrane
no estimate extracted1 study · 122 participantsVery low
Dexketoprofen 10 mg‐12.5 mg vs placebo
Participants using rescue medication over 6 hours · adults with moderate or severe acute postoperative pain
Single dose oral ketoprofen or dexketoprofen for acute postoperative pain in adults (2017) · Cochrane
no estimate extracted4 studies · 373 participantsHigh