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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)

361 questions in 74 reviews · Pain, Palliative and Supportive Care

current versions
No studies 361 · 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.

QuestionEffectEvidenceStatus / GRADE
Acupuncture vs other active therapy
Participants experiencing any serious adverse event · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture vs other active therapy
Quality of life · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture combined with other active therapy vs other active therapy
Participant‐reported pain relief substantial (at least 50% pain relief over baseline) · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture combined with other active therapy vs other active therapy
Participants experiencing any serious adverse event · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture vs sham acupuncture
Participant‐reported pain relief substantial (at least 50% pain relief over baseline) · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture vs sham acupuncture
Participants experiencing any serious adverse event · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture vs treatment
Participant‐reported pain intensity · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture vs treatment
Participant‐reported pain relief · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture vs treatment
Participants experiencing any serious adverse event · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture vs treatment
Quality of life · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Acupuncture vs other active therapy
Participant‐reported pain intensity · adults with neuropathic pain
Acupuncture for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Methadone vs placebo
CI: confidence interval. · adults with chronic neuropathic pain
Methadone for neuropathic pain in adults (2017) · Cochrane
no estimate extractedNRNo studies
Amitriptyline vs gabapentin
Participant‐reported pain relief of 30% or greater · children and adolescents (birth to 17 years) with chronic non‐cancer pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Citalopram vs placebo
Participant‐reported pain relief of 30% or greater · children and adolescents with functional abdominal pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Citalopram vs placebo
Participant‐reported pain relief of 50% or greater · children and adolescents with functional abdominal pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Citalopram vs placebo
Patient Global Impression of Change: much improved or very much improved · children and adolescents with functional abdominal pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Amitriptyline vs gabapentin
Participant‐reported pain relief of 50% or greater · children and adolescents (birth to 17 years) with chronic non‐cancer pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Amitriptyline vs gabapentin
Patient Global Impression of Change: much improved or very much improved · children and adolescents (birth to 17 years) with chronic non‐cancer pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Amitriptyline vs placebo
Participant‐reported pain relief of 30% or greater · children and adolescents (birth to 17 years) with chronic non‐cancer pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Amitriptyline vs placebo
Participant‐reported pain relief of 50% or greater · children and adolescents (birth to 17 years) with chronic non‐cancer pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Amitriptyline vs placebo
Patient Global Impression of Change: much improved or very much improved · children and adolescents (birth to 17 years) with chronic non‐cancer pain
Antidepressants for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Gabapentin vs amitriptyline
Participant‐reported pain relief of 30% or greater · children and adolescents (birth to 17 years of age) with chronic non‐cancer pain
Antiepileptic drugs for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Gabapentin vs amitriptyline
Participant‐reported pain relief of 50% or greater · children and adolescents (birth to 17 years of age) with chronic non‐cancer pain
Antiepileptic drugs for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Gabapentin vs amitriptyline
Patient Global Impression of Change: much improved or very much improved · children and adolescents (birth to 17 years of age) with chronic non‐cancer pain
Antiepileptic drugs for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Celecoxib vs naproxen
Any adverse event · children and adolescents with chronic non‐cancer pain
Non‐steroidal anti‐inflammatory drugs (NSAIDs) for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Rofecoxib vs naproxen
Participant‐reported pain relief of 50% or greater · children and adolescents with chronic non‐cancer pain
Non‐steroidal anti‐inflammatory drugs (NSAIDs) for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Rofecoxib vs naproxen
Patient Global Impression of Change much or very much improved · children and adolescents with chronic non‐cancer pain
Non‐steroidal anti‐inflammatory drugs (NSAIDs) for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Meloxicam vs naproxen
Patient Global Impression of Change much or very much improved · children and adolescents with chronic non‐cancer pain
Non‐steroidal anti‐inflammatory drugs (NSAIDs) for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Celecoxib vs naproxen
Participant‐reported pain relief of 50% or greater · children and adolescents with chronic non‐cancer pain
Non‐steroidal anti‐inflammatory drugs (NSAIDs) for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Celecoxib vs naproxen
Patient Global Impression of Change much or very much improved · children and adolescents with chronic non‐cancer pain
Non‐steroidal anti‐inflammatory drugs (NSAIDs) for chronic non‐cancer pain in children and adolescents (2017) · Cochrane
no estimate extractedNRNo studies
Perioperative infraorbital nerve block vs Infiltration of the incision (peri-incisional infiltration)
Duration of postoperative analgesia · Children up to 13 years of age, undergoing cleft lip repair surgery
Infraorbital nerve block for postoperative pain following cleft lip repair in children (2016) · Cochrane
This outcome was not reported.0 studiesNo studies
Perioperative infraorbital nerve block vs Placebo (sham block)
Time to feeding after surgery · Children up to 13 years of age, undergoing cleft lip repair surgery
Infraorbital nerve block for postoperative pain following cleft lip repair in children (2016) · Cochrane
This outcome was not reported.0 studiesNo studies
Perioperative infraorbital nerve block vs Infiltration of the incision (peri-incisional infiltration)
Duration of hospitalisation · Children up to 13 years of age, undergoing cleft lip repair surgery
Infraorbital nerve block for postoperative pain following cleft lip repair in children (2016) · Cochrane
The included studies did not report this outcome.0 studiesNo studies
Perioperative infraorbital nerve block vs Intravenous analgesia
Duration of hospitalisation · Children up to 13 years of age, undergoing cleft lip repair surgery
Infraorbital nerve block for postoperative pain following cleft lip repair in children (2016) · Cochrane
None of the included studies reported this outcome.0 studiesNo studies
Perioperative infraorbital nerve block vs Intravenous analgesia
Heart rate, respiratory rate, and blood pressure · Children up to 13 years of age, undergoing cleft lip repair surgery
Infraorbital nerve block for postoperative pain following cleft lip repair in children (2016) · Cochrane
The included studies did not report these outcomes.0 studiesNo studies
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
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
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
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
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
Intervention NR
Participants with at least one adverse event · adults with acute postoperative pain
Single dose dipyrone (metamizole) for acute postoperative pain in adults (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Cumulative pain score from the end of operation (0 hours) to 72 hours · adults aged ≥ 18 years undergoing elective surgery at any surgical site
Liposomal bupivacaine peripheral nerve block for the management of postoperative pain (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Time to first postoperative opioid dose · adults aged ≥ 18 years undergoing elective surgery at any surgical site
Liposomal bupivacaine peripheral nerve block for the management of postoperative pain (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Percentage of participants not requiring postoperative opioids over initial 72 hours · adults aged ≥ 18 years undergoing elective surgery at any surgical site
Liposomal bupivacaine peripheral nerve block for the management of postoperative pain (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Health economic assessment · adults aged ≥ 18 years undergoing elective surgery at any surgical site
Liposomal bupivacaine peripheral nerve block for the management of postoperative pain (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Incidence of adverse events within 30 days of surgery · adults aged ≥ 18 years undergoing elective surgery at any surgical site
Liposomal bupivacaine peripheral nerve block for the management of postoperative pain (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Patient‐reported outcomes · adults aged ≥ 18 years undergoing elective surgery at any surgical site
Liposomal bupivacaine peripheral nerve block for the management of postoperative pain (2016) · Cochrane
no estimate extractedNRNo studies
Oral hydromorphone vs placebo
Substantial benefit: ≥ 50% reduction in pain PGIC much improved · adults with chronic neuropathic pain
Hydromorphone for neuropathic pain in adults (2016) · Cochrane
no estimate extractedNRNo studies
Oral hydromorphone vs placebo
Moderate benefit: ≥ 30% reduction in pain PGIC much or very much improved · adults with chronic neuropathic pain
Hydromorphone for neuropathic pain in adults (2016) · Cochrane
no estimate extractedNRNo studies
Oral hydromorphone vs placebo
Serious adverse events · adults with chronic neuropathic pain
Hydromorphone for neuropathic pain in adults (2016) · Cochrane
no estimate extractedNRNo studies