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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
Cranial electrotherapy stimulation (CES) vs sham
Quality of life (0 to < 1 week postintervention) measured using Fibromyalgia Impact Questionnaire · adults with chronic pain
Non‐invasive brain stimulation techniques for chronic pain (2018) · Cochrane
no estimate extracted1 study · 36 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham
Pain intensity (0 to < 1 week postintervention) measured using visual analogue scales or numerical rating scales · adults with chronic pain
Non‐invasive brain stimulation techniques for chronic pain (2018) · Cochrane
no estimate extracted27 studies · 747 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham
Disability (0 to < 1 week postintervention) measured using self‐reported disability/pain interference scales · adults with chronic pain
Non‐invasive brain stimulation techniques for chronic pain (2018) · Cochrane
no estimate extracted4 studies · 212 participantsLow
Transcranial direct current stimulation (tDCS) vs sham
Quality of life (0 to < 1 week postintervention) measured using different scales across studies · adults with chronic pain
Non‐invasive brain stimulation techniques for chronic pain (2018) · Cochrane
no estimate extracted4 studies · 82 participantsLow
Serotonin noradrenaline reuptake inhibitors vs placebo
Self‐reported pain relief of 50% or greater · people with fibromyalgia
Serotonin and noradrenaline reuptake inhibitors (SNRIs) for fibromyalgia (2018) · Cochrane
RD 0.09 [0.07, 0.11]15 studies · 6918 participantsLow
Serotonin noradrenaline reuptake inhibitors vs placebo
Patient Global Impression to be much or very much improved (PGIC) · people with fibromyalgia
Serotonin and noradrenaline reuptake inhibitors (SNRIs) for fibromyalgia (2018) · Cochrane
RD 0.19 [0.12, 0.26]6 studies · 2918 participantsLow
Serotonin noradrenaline reuptake inhibitors vs placebo
Self‐reported fatigue (20‐100 scale) Higher scores indicate higher fatigue problem levels · people with fibromyalgia
Serotonin and noradrenaline reuptake inhibitors (SNRIs) for fibromyalgia (2018) · Cochrane
no estimate extracted12 studies · 6168 participantsLow
Serotonin noradrenaline reuptake inhibitors vs placebo
Self‐reported sleep problems (0‐100 scale) Higher scores indicate higher sleep problem levels · people with fibromyalgia
Serotonin and noradrenaline reuptake inhibitors (SNRIs) for fibromyalgia (2018) · Cochrane
no estimate extracted8 studies · 4547 participantsLow
Serotonin noradrenaline reuptake inhibitors vs placebo
Self‐reported health‐related quality of life (0‐100 scale) Higher scores indicate higher burden of disease (lower quality of life) · people with fibromyalgia
Serotonin and noradrenaline reuptake inhibitors (SNRIs) for fibromyalgia (2018) · Cochrane
no estimate extracted14 studies · 6861 participantsLow
Serotonin noradrenaline reuptake inhibitors vs placebo
Tolerability (withdrawal due to adverse events) · people with fibromyalgia
Serotonin and noradrenaline reuptake inhibitors (SNRIs) for fibromyalgia (2018) · Cochrane
RD 0.07 [0.04, 0.1]15 studies · 7029 participantsLow
Serotonin noradrenaline reuptake inhibitors vs placebo
Safety (serious adverse events) · people with fibromyalgia
Serotonin and noradrenaline reuptake inhibitors (SNRIs) for fibromyalgia (2018) · Cochrane
no estimate extracted13 studies · 6732 participantsVery low
Any combination of two or more drugs vs placebo or other comparators, or both,
Patient‐reported pain relief of 30% or greater · adults with fibromyalgia
Combination pharmacotherapy for the treatment of fibromyalgia in adults (2018) · Cochrane
no estimate extractedNRVery low
Any combination of two or more drugs vs placebo or other comparators, or both,
Patient‐reported pain relief of 50% or greater · adults with fibromyalgia
Combination pharmacotherapy for the treatment of fibromyalgia in adults (2018) · Cochrane
no estimate extractedNRVery low
Any combination of two or more drugs vs placebo or other comparators, or both,
Patient‐reported global impression of clinical change much or very much improved (moderate improvement) · adults with fibromyalgia
Combination pharmacotherapy for the treatment of fibromyalgia in adults (2018) · Cochrane
no estimate extractedNRVery low
Any combination of two or more drugs vs placebo or other comparators, or both,
Any pain‐related outcome indicating some improvement · adults with fibromyalgia
Combination pharmacotherapy for the treatment of fibromyalgia in adults (2018) · Cochrane
no estimate extractedNRVery low
Any combination of two or more drugs vs placebo or other comparators, or both,
Participants experiencing any adverse event · adults with fibromyalgia
Combination pharmacotherapy for the treatment of fibromyalgia in adults (2018) · Cochrane
no estimate extractedNRVery low
Any combination of two or more drugs vs placebo or other comparators, or both,
Participants experiencing any serious adverse event · adults with fibromyalgia
Combination pharmacotherapy for the treatment of fibromyalgia in adults (2018) · Cochrane
no estimate extractedNRVery low
Any combination of two or more drugs vs placebo or other comparators, or both,
Withdrawals due to adverse events · adults with fibromyalgia
Combination pharmacotherapy for the treatment of fibromyalgia in adults (2018) · Cochrane
no estimate extractedNRVery low
Intervention NR
Incidence of diphtheria, tetanus, pertussis, Haemophilus influenzae type b (Hib) (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Non‐severe local reaction10 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 0.64 [0.52, 0.79]1 study · 447 participantsModerate
Intervention NR
Fever14 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1.44 [1.01, 2.06]1 study · 447 participantsVery low
Intervention NR
Incidence of diphtheria, tetanus, pertussis, Haemophilus influenzae type b (Hib) (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
2a. Adequate immune response (seroprotection) against diphtheria (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1 [0.99, 1.01]1 study · 311 participantsModerate
Intervention NR
2b. Adequate immune response (seroprotection) against tetanus (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1 [0.99, 1.01]1 study · 402 participantsModerate
Intervention NR
2c. Adequate immune response (seroprotection) against pertussis (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
2d. Adequate immune response (seroprotection) against Haemophilus influenzae type b disease (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1.03 [0.96, 1.11]1 study · 414 participantsModerate
Intervention NR
Pain: 0 to 10 on MBPS 0 = no pain; 10 = worst possible pain4 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extracted1 study · 320 participantsLow
Intervention NR
4a. Procedural crying (during and immediately after the vaccination procedure) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extracted1 study · 320 participantsModerate
Intervention NR
4b. Persistent inconsolable crying8 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1.31 [0.36, 4.8]1 study · 459 participantsVery low
Intervention NR
2a. Adequate immune response (seroprotection) against diphtheria (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1 [0.99, 1.01]1 study · 312 participantsModerate
Intervention NR
Severe local reaction11 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extracted2 studies · 559 participantsHigh
Intervention NR
Non‐severe local reaction13 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 0.92 [0.73, 1.17]1 study · 459 participantsLow
Intervention NR
Fever · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP combination…
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extracted2 studies · 561 participantsVery low
Intervention NR
Incidence of diphtheria, tetanus, pertussis, Haemophilus influenzae type b (Hib) (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
2a. Adequate immune response (seroprotection) against diphtheria (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1 [0.99, 1.01]1 study · 309 participantsModerate
Intervention NR
2b. Adequate immune response (seroprotection) against tetanus (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1 [0.99, 1.01]1 study · 394 participantsModerate
Intervention NR
2c. Adequate immune response (seroprotection) against pertussis (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
2d. Adequate immune response (seroprotection) against Haemophilus influenzae type b disease (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1.06 [0.97, 1.16]1 study · 402 participantsModerate
Intervention NR
Pain (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
4a. Procedural crying (during and immediately after the vaccination procedure) (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
2b. Adequate immune response (seroprotection) against tetanus (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1 [0.99, 1.01]1 study · 390 participantsModerate
Intervention NR
4b. Persistent inconsolable crying4 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1.9 [0.35, 10.26]1 study · 458 participantsVery low
Intervention NR
Severe local reaction8 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 0.11 [0.01, 0.83]1 study · 458 participantsModerate
Intervention NR
Non‐severe local reaction11 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 0.69 [0.57, 0.84]1 study · 458 participantsModerate
Intervention NR
Fever15 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1.14 [0.78, 1.66]1 study · 458 participantsVery low
Intervention NR
2c. Adequate immune response (seroprotection) against pertussis (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
2d. Adequate immune response (seroprotection) against Haemophilus influenzae type b disease (surrogate outcome) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 1.1 [1.01, 1.2]1 study · 400 participantsModerate
Intervention NR
Pain (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
4a. Procedural crying (during and immediately after the vaccination procedure) (not measured) · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
4b. Persistent inconsolable crying4 · infants aged approximately 2 to 6 months undergoing vaccination in the anterolateral thigh with a DTwP‐Hib vaccine
Needle size for vaccination procedures in children and adolescents (2018) · Cochrane
RR 2.49 [0.49, 12.7]1 study · 447 participantsVery low