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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
Intervention NR
Headache relief at 15 mins · adults with cluster headache
Triptans for acute cluster headache (2013) · Cochrane
RR 2.2 [0.99, 4.67]NRVery low
Intervention NR
At least one AE · adults with cluster headache
Triptans for acute cluster headache (2013) · Cochrane
RR 1.8 [1.2, 2.8]NRVery low
Intervention NR
Serious AE · adults with cluster headache
Triptans for acute cluster headache (2013) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Pain‐free at 30 mins · adults with cluster headache
Triptans for acute cluster headache (2013) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Pain‐free at 15 mins · adults with cluster headache
Triptans for acute cluster headache (2013) · Cochrane
no estimate extractedNRLow
Intervention NR
Headache relief at 30 mins · adults with cluster headache
Triptans for acute cluster headache (2013) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Pain‐free at 2 h · adults with migraine headache ‐ moderate or severe pain
Diclofenac with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extracted2 studies · 1447 participantsModerate
Intervention NR
Headache relief at 2 h · adults with migraine headache ‐ moderate or severe pain
Diclofenac with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extracted2 studies · 1447 participantsModerate
Intervention NR
Sustained pain‐free at 24 h · adults with migraine headache ‐ moderate or severe pain
Diclofenac with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extracted2 studies · 1578 participantsModerate
Intervention NR
Sustained headache relief at 24 h · adults with migraine headache ‐ moderate or severe pain
Diclofenac with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extractedNRNo studies
Intervention NR
At least one AE · adults with migraine headache ‐ moderate or severe pain
Diclofenac with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extracted3 studies · 1075 participantsLow
Intervention NR
Serious AE · adults with migraine headache ‐ moderate or severe pain
Diclofenac with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extractedNRNo studies
Naproxen 500 mg or 825 mg vs placebo
Pain‐free response at 2 h · migraine headache ‐ moderate or severe pain
Naproxen with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extractedNRModerate
Naproxen 500 mg or 825 mg vs placebo
Headache relief at 2 h · migraine headache ‐ moderate or severe pain
Naproxen with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extractedNRModerate
Naproxen 500 mg or 825 mg vs placebo
Sustained pain‐free during the 24 h post dose · migraine headache ‐ moderate or severe pain
Naproxen with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extractedNRModerate
Naproxen 500 mg or 825 mg vs placebo
Sustained headache relief during the 24 h post dose · migraine headache ‐ moderate or severe pain
Naproxen with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extractedNRModerate
Naproxen 500 mg or 825 mg vs placebo
At least one AE · migraine headache ‐ moderate or severe pain
Naproxen with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extractedNRLow
Naproxen 500 mg or 825 mg vs placebo
Serious AE · migraine headache ‐ moderate or severe pain
Naproxen with or without an antiemetic for acute migraine headaches in adults (2013) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Pain end of treatment (0‐10 scale) Higher scores indicate higher pain levels · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted20 studies · 1382 participantsLow
Cognitive behavioural therapies vs controls
Health‐related quality of life end of treatment (0‐80 scale) Higher scores indicate lower health‐related quality of life · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted13 studies · 1238 participantsLow
Cognitive behavioural therapies vs controls
Fatigue · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted6 studies · 429 participantsLow
Cognitive behavioural therapies vs controls
Sleep problems · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted7 studies · 378 participantsLow
Cognitive behavioural therapies vs controls
Health‐related quality of life · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted6 studies · 425 participantsLow
Cognitive behavioural therapies vs controls
Acceptability · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Pain · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted14 studies · 822 participantsLow
Intervention NR
Negative mood end of treatment (0‐10 scale) Higher scores indicate higher negative mood levels · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted18 studies · 1578 participantsLow
Intervention NR
Negative mood · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted11 studies · 721 participantsLow
Intervention NR
Disability end of treatment (0‐10 scale) Higher scores indicate disability levels · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted15 studies · 1163 participantsLow
Intervention NR
Disability · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted9 studies · 664 participantsLow
Intervention NR
Acceptability end of treatment (dropouts from study due to any reasons) · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
RR 0.94 [0.65, 1.35]21 studies · 1914 participantsLow
Cognitive behavioural therapies vs controls
Fatigue end of treatment (0‐10 scale) Higher scores indicate higher fatigue levels · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted11 studies · 910 participantsLow
Cognitive behavioural therapies vs controls
Sleep problems end of treatment (0‐50 scale) Higher scores indicate more sleep problems · Patients with fibromyalgia
Cognitive behavioural therapies for fibromyalgia (2013) · Cochrane
no estimate extracted8 studies · 422 participantsLow
Pregabalin vs placebo at end of treatment
50% pain reduction · People with fibromyalgia
Anticonvulsants for fibromyalgia (2013) · Cochrane
RR 1.59 [1.33, 1.9]5 studies · 3256 participantsHigh
Pregabalin vs placebo at end of treatment
Patient Global Impression of Change of 'much' or 'very much' improved · People with fibromyalgia
Anticonvulsants for fibromyalgia (2013) · Cochrane
RR 1.38 [1.23, 1.55]5 studies · 3183 participantsHigh
Pregabalin vs placebo at end of treatment
Fatigue (1‐50 scale) Higher scores indicate higher fatigue levels · People with fibromyalgia
Anticonvulsants for fibromyalgia (2013) · Cochrane
no estimate extracted5 studies · 3195 participantsHigh
Pregabalin vs placebo at end of treatment
Sleep problems (0‐100 scale). Higher scores indicate more sleep problems · People with fibromyalgia
Anticonvulsants for fibromyalgia (2013) · Cochrane
no estimate extracted5 studies · 3139 participantsHigh
Pregabalin vs placebo at end of treatment
Withdrawal due to adverse events · People with fibromyalgia
Anticonvulsants for fibromyalgia (2013) · Cochrane
RR 1.68 [1.36, 2.07]5 studies · 3259 participantsHigh
Pregabalin vs placebo at end of treatment
Serious adverse events · People with fibromyalgia
Anticonvulsants for fibromyalgia (2013) · Cochrane
RR 1.03 [0.71, 1.49]4 studies · 2729 participantsModerate
Pregabalin vs placebo at end of treatment
Dizziness reported to be an adverse event · People with fibromyalgia
Anticonvulsants for fibromyalgia (2013) · Cochrane
RR 3.77 [3.06, 4.63]5 studies · 3257 participantsHigh
Radioisotopes vs Placebo
Pain relief ‐ Complete relief · patients with metastatic bone pain
Radioisotopes for metastatic bone pain (2011) · Cochrane
RR 2.1 [1.32, 3.35]4 studies · 296 participantsModerate
Radioisotopes vs Placebo
Pain relief ‐ Complete/Partial relief · patients with metastatic bone pain
Radioisotopes for metastatic bone pain (2011) · Cochrane
RR 1.72 [1.13, 2.63]3 studies · 119 participantsModerate
Radioisotopes vs Placebo
Compression of spinal cord · patients with metastatic bone pain
Radioisotopes for metastatic bone pain (2011) · Cochrane
RR 1.1 [0.39, 3.07]2 studies · 270 participantsLow
Radioisotopes vs Placebo
Pain flares · patients with metastatic bone pain
Radioisotopes for metastatic bone pain (2011) · Cochrane
RR 0.74 [0.27, 2.06]2 studies · 270 participantsLow
Radioisotopes vs Placebo
Thrombocytopenia III‐IV · patients with metastatic bone pain
Radioisotopes for metastatic bone pain (2011) · Cochrane
RR 2.21 [0.98, 4.99]4 studies · 313 participantsLow
Radioisotopes vs Placebo
Leucocytopenia III‐IV · patients with metastatic bone pain
Radioisotopes for metastatic bone pain (2011) · Cochrane
RR 5.9 [1.62, 21.47]4 studies · 410 participantsLow
Methylnaltrexone vs placebo
Rescue free laxation within 4 hours · patients with the management of opioid‐induced constipation in palliative care patients
Laxatives or methylnaltrexone for the management of constipation in palliative care patients (2011) · Cochrane
OR 6.95 [3.83, 12.61]2 studies · 287 participantsModerate
Methylnaltrexone vs placebo
Rescue free laxation within 24 hours · patients with the management of opioid‐induced constipation in palliative care patients
Laxatives or methylnaltrexone for the management of constipation in palliative care patients (2011) · Cochrane
OR 5.42 [3.12, 9.41]2 studies · 287 participantsModerate
Psychostimulants vs placebo
Fatigue score change
Drug therapy for the management of cancer‐related fatigue (2010) · Cochrane
no estimate extracted5 studies · 410 participantsHigh
Intervention NR
Complete pain relief · Patients withmetastatic bone pain
Calcitonin for metastatic bone pain (2006) · Cochrane
RR 2.5 [0.55, 11.41]1 study · 40 participantsVery low
Intervention NR
Less or equal analgesia consumption · Patients withmetastatic bone pain
Calcitonin for metastatic bone pain (2006) · Cochrane
RR 1.05 [0.9, 1.21]1 study · 48 participantsVery low