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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. 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
Sumatriptan 50 mg or 85 mg plus naproxen 500 mg vs placebo
Sustained headache relief during the 24 h post dose for moderate or severe baseline pain · adults with migraine headache ‐ moderate or severe and mild baseline pain
Sumatriptan plus naproxen for the treatment of acute migraine attacks in adults (2016) · Cochrane
no estimate extractedNRHigh
Sumatriptan 50 mg or 85 mg plus naproxen 500 mg vs placebo
At least 1 AE during treatment for moderate to severe baseline pain · adults with migraine headache ‐ moderate or severe and mild baseline pain
Sumatriptan plus naproxen for the treatment of acute migraine attacks in adults (2016) · Cochrane
no estimate extractedNRModerate
Sumatriptan 50 mg or 85 mg plus naproxen 500 mg vs placebo
At least 1 AE during treatment for mild baseline pain · adults with migraine headache ‐ moderate or severe and mild baseline pain
Sumatriptan plus naproxen for the treatment of acute migraine attacks in adults (2016) · Cochrane
no estimate extractedNRModerate
Sumatriptan 50 mg or 85 mg plus naproxen 500 mg vs placebo
Serious AE (all levels of baseline pain) · adults with migraine headache ‐ moderate or severe and mild baseline pain
Sumatriptan plus naproxen for the treatment of acute migraine attacks in adults (2016) · Cochrane
no estimate extractedNRNo studies
Morphine vs placebo
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted7 studies · 297 participantsLow
Morphine vs bupivacaine
Adverse eventsPercentage of participants with any adverse event · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
RR 0.68 [0.09, 5.17]4 studies · 210 participantsModerate
Morphine vs NSAIDs
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 80 participantsVery low
Morphine vs NSAIDs
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 80 participantsLow
Morphine vs NSAIDs
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 80 participantsLow
Morphine vs NSAIDs
Analgesia durationtime duration from the end of surgery to the time of first analgesic consumption. Scale from: 0 to 100. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted1 study · 50 participantsLow
Morphine vs NSAIDs
Adverse eventsPercentage of participants with any adverse event · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
RR 0.75 [0.19, 3.04]3 studies · 120 participantsModerate
Intervention NR
Pain intensity VAS score 1 mg morphine vs 2 mg morphine0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 105 participantsLow
Intervention NR
Pain intensity VAS score1 mg morphine vs 2 mg morphine 0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 105 participantsLow
Intervention NR
Pain intensity VAS score1 mg morphine vs 2 mg morphine 0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted1 study · 45 participantsLow
Intervention NR
Analgesia duration 1 mg morphine vs 2 mg morphineTime duration from the end of surgery to the time of first analgesic consumption · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted1 study · 60 participantsModerate
Morphine vs placebo
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted7 studies · 297 participantsLow
Intervention NR
Adverse events 1 mg morphine vs 2 mg morphinePercentage of participants with any adverse event · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Pain intensity VAS score1 mg morphine vs 4 mg/5 mg morphine 0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 67 participantsLow
Intervention NR
Pain intensity VAS score1 mg morphine vs 4 mg/5 mg morphine 0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 67 participantsLow
Intervention NR
Pain intensity VAS score1 mg morphine vs 4 mg/5 mg morphine 0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 67 participantsLow
Intervention NR
Analgesia duration 1 mg morphine vs 4 mg/5 mg morphinetime duration from the end of surgery to the first time of analgesic consumption · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted1 study · 24 participantsModerate
Intervention NR
Adverse events 1 mg morphine vs 4 mg/5 mg morphinePercentage of participants with any adverse event · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extractedNRNo studies
IA morphine vs IM morphine
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 72 participantsVery low
IA morphine vs IM morphine
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted2 studies · 72 participantsLow
IA morphine vs IM morphine
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted1 study · 39 participantsLow
IA morphine vs IM morphine
Analgesia durationtime duration from the end of surgery to the time of first analgesic consumption. Scale from: 0 to 100. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extractedNRNo studies
Morphine vs placebo
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted7 studies · 297 participantsLow
IA morphine vs IM morphine
Adverse eventsPercentage of participants with any adverse event · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extractedNRNo studies
Morphine vs placebo
Analgesia durationTime duration from the end of surgery to the time of first analgesic consumption. Scale from: 0 to 100. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted3 studies · 124 participantsLow
Morphine vs placebo
Adverse eventsPercentage of participants with any adverse event · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
RR 1.09 [0.51, 2.36]8 studies · 314 participantsLow
Morphine vs bupivacaine
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted5 studies · 248 participantsLow
Morphine vs bupivacaine
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted6 studies · 330 participantsLow
Morphine vs bupivacaine
Pain intensity VAS score0‐10 cm VAS score. Scale from: 0 to 10. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted5 studies · 270 participantsLow
Morphine vs bupivacaine
Analgesia durationTime duration from the end of surgery to the time of first analgesic consumption. Scale from: 0 to 100. · patients undergoing knee arthroscopy
Single dose intra‐articular morphine for pain control after knee arthroscopy (2016) · Cochrane
no estimate extracted3 studies · 162 participantsModerate
Bed rest vs ambulation
Post‐dural puncture headacheReported by participant · Participants undergoing lumbar puncture
Posture and fluids for preventing post‐dural puncture headache (2016) · Cochrane
RR 1.24 [1.04, 1.48]12 studies · 1519 participantsModerate
Bed rest vs ambulation
Severe post‐dural puncture headacheReported by participant · Participants undergoing lumbar puncture
Posture and fluids for preventing post‐dural puncture headache (2016) · Cochrane
RR 0.98 [0.68, 1.41]9 studies · 1568 participantsLow
Bed rest vs ambulation
Any headacheReported by participant · Participants undergoing lumbar puncture
Posture and fluids for preventing post‐dural puncture headache (2016) · Cochrane
RR 1.16 [1.02, 1.32]18 studies · 2477 participantsModerate
Neuromuscular electrical stimulation (NMES) vs control
Quadriceps muscle strength Handheld or fixed dynamometry · adults with advanced disease for muscle weakness
Neuromuscular electrical stimulation for muscle weakness in adults with advanced disease (2016) · Cochrane
no estimate extracted12 studies · 781 participantsLow
Neuromuscular electrical stimulation (NMES) vs control
Safety Serious adverse events · adults with advanced disease for muscle weakness
Neuromuscular electrical stimulation for muscle weakness in adults with advanced disease (2016) · Cochrane
no estimate extracted18 studies · 933 participantsModerate
Neuromuscular electrical stimulation (NMES) vs control
Safety Adverse events: Muscle discomfort · adults with advanced disease for muscle weakness
Neuromuscular electrical stimulation for muscle weakness in adults with advanced disease (2016) · Cochrane
no estimate extracted18 studies · 933 participantsModerate
Neuromuscular electrical stimulation (NMES) vs control
Muscle mass Anthropometry, DEXA, ultrasound, computed tomography · adults with advanced disease for muscle weakness
Neuromuscular electrical stimulation for muscle weakness in adults with advanced disease (2016) · Cochrane
no estimate extracted8 studies · 314 participantsVery low
Neuromuscular electrical stimulation (NMES) vs control
Exercise performance ‐ walking distance 6MWT, ISWT, ESWT · adults with advanced disease for muscle weakness
Neuromuscular electrical stimulation for muscle weakness in adults with advanced disease (2016) · Cochrane
no estimate extracted13 studies · 788 participantsVery low
Neuromuscular electrical stimulation (NMES) vs control
Exercise performance ‐ peak oxygen uptake · adults with advanced disease for muscle weakness
Neuromuscular electrical stimulation for muscle weakness in adults with advanced disease (2016) · Cochrane
no estimate extracted4 studies · 109 participantsLow
Massage vs no massage
Pain (PPI‐VAS) · people with cancer
Massage with or without aromatherapy for symptom relief in people with cancer (2016) · Cochrane
no estimate extracted1 study · 72 participantsVery low
Aromatherapy massage vs no massage
Anxiety (STAI‐state) subgroup: short‐term vs. medium‐term ‐ short‐term (≤ 4 weeks) · people with cancer
Massage with or without aromatherapy for symptom relief in people with cancer (2016) · Cochrane
no estimate extracted1 study · 32 participantsVery low
Aromatherapy massage vs no massage
Anxiety (STAI‐state) subgroup: short‐term vs. medium‐term ‐ medium‐term (> 4 weeks to < 8 weeks) · people with cancer
Massage with or without aromatherapy for symptom relief in people with cancer (2016) · Cochrane
no estimate extracted1 study · 221 participantsModerate
Aromatherapy massage vs no massage
Symptoms relating to the breast (EORTC QLQ‐BR23): long‐term (≥ 8 weeks) · people with cancer
Massage with or without aromatherapy for symptom relief in people with cancer (2016) · Cochrane
no estimate extracted1 study · 86 participantsVery low
Aromatherapy massage vs no massage
Quality of life (MYMOP): medium‐term (> 4 weeks to < 8 weeks) · people with cancer
Massage with or without aromatherapy for symptom relief in people with cancer (2016) · Cochrane
no estimate extracted1 study · 29 participantsVery low
Massage vs no massage
Anxiety (STAI‐state) · people with cancer
Massage with or without aromatherapy for symptom relief in people with cancer (2016) · Cochrane
no estimate extracted3 studies · 98 participantsVery low
Massage vs no massage
Anxiety (STAI‐state) subgroup 1: children vs. adults ‐ children · people with cancer
Massage with or without aromatherapy for symptom relief in people with cancer (2016) · Cochrane
no estimate extracted1 study · 30 participantsVery low