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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)

767 questions in 53 reviews · Back and Neck

current versions
No studies 149 · 19.4%Ungraded 41 · 5.3%Very low 168 · 21.9%Low 226 · 29.5%Moderate 156 · 20.3%High 27 · 3.5%

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
McKenzie therapy vs manual therapy
Pain intensity: short‐term (closest to 2 weeks)a Multiples scales (scale from 0‐100, 0 is no pain) · patients with non‐specific acute and subacute low back pain
The McKenzie method for (sub)acute non‐specific low back pain (2023) · Cochrane
no estimate extracted3 studies · 298 participantsLow
McKenzie therapy vs manual therapy
Pain intensity: intermediate‐term (closest to 3 months) NRS (scale from 0‐100, 0 is no pain) · patients with non‐specific acute and subacute low back pain
The McKenzie method for (sub)acute non‐specific low back pain (2023) · Cochrane
no estimate extracted1 study · 235 participantsLow
McKenzie therapy vs manual therapy
Disability: short‐term (closest to 2 weeks)a Multiples scales (scale from 0‐100, 0 is no disability) · patients with non‐specific acute and subacute low back pain
The McKenzie method for (sub)acute non‐specific low back pain (2023) · Cochrane
no estimate extracted3 studies · 298 participantsLow
McKenzie therapy vs manual therapy
Disability: intermediate‐term (closest to 3 months) RMDQ (scale from 0‐100, 0 is no disability) · patients with non‐specific acute and subacute low back pain
The McKenzie method for (sub)acute non‐specific low back pain (2023) · Cochrane
no estimate extracted1 study · 235 participantsLow
Spinal cord stimulation vs placebo
Pain intensity VAS, translated to a 0‐ to 100‐point scale, where 0 is no pain Medium‐term · adults with low back pain
Spinal cord stimulation for low back pain (2023) · Cochrane
no estimate extracted1 study · 50 participantsModerate
Spinal cord stimulation vs placebo
Function Roland‐Morris Disability Questionnaire & Oswestry Disability Index translated to a 0‐ to 100‐point scale, where 0 is no disability or best function Medium‐term · adults with low back pain
Spinal cord stimulation for low back pain (2023) · Cochrane
no estimate extracted1 study · 50 participantsModerate
Spinal cord stimulation vs placebo
Health‐related quality of life EQ‐5D, index from 0 to 1 where 0 is worst quality of life Medium‐term · adults with low back pain
Spinal cord stimulation for low back pain (2023) · Cochrane
no estimate extracted1 study · 50 participantsModerate
Spinal cord stimulation vs placebo
Global assessment of efficacy ≥ 50% improvement in pain Medium‐term · adults with low back pain
Spinal cord stimulation for low back pain (2023) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Spinal cord stimulation vs placebo
Withdrawals due to adverse events · adults with low back pain
Spinal cord stimulation for low back pain (2023) · Cochrane
no estimate extracted0 studies · 0 participantsVery low
Spinal cord stimulation vs placebo
Adverse eventsc · adults with low back pain
Spinal cord stimulation for low back pain (2023) · Cochrane
no estimate extracted0 studies · 0 participantsVery low
Spinal cord stimulation vs placebo
Serious adverse eventsd · adults with low back pain
Spinal cord stimulation for low back pain (2023) · Cochrane
no estimate extracted0 studies · 0 participantsVery low
Yoga vs sham yoga
Back‐specific functional status · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs non‐exercise
Clinical improvement Assessed as participant rating that back pain was improved or resolved. Improvement measured differently in each study · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
RR 2.33 [1.46, 3.71]4 studies · 353 participantsLow
Yoga vs non‐exercise
Physical quality of life · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted6 studies · 686 participantsModerate
Yoga vs non‐exercise
Mental quality of life · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted6 studies · 686 participantsModerate
Yoga vs non‐exercise
Depression · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted3 studies · 241 participantsLow
Yoga vs non‐exercise
Adverse events (1 participant withdrew due to increased back pain) · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
RR 4.76 [2.08, 10.89]8 studies · 1037 participantsLow
Yoga vs exercise
Outcomesa · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs exercise
Back‐specific functional status · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted4 studies · 575 participantsModerate
Yoga vs exercise
Pain · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted2 studies · 326 participantsVery low
Yoga vs exercise
Clinical improvement Assessed as participant rating that back pain was improved or resolved. Improvement measured differently in each study · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
RR 0.97 [0.72, 1.31]3 studies · 433 participantsVery low
Yoga vs exercise
Physical quality of life · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted1 study · 237 participantsVery low
Yoga vs sham yoga
Pain · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs exercise
Mental quality of life · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted1 study · 237 participantsVery low
Yoga vs exercise
Depression · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs exercise
Adverse events · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
RR 0.93 [0.56, 1.53]5 studies · 640 participantsLow
Yoga vs sham yoga
Physical quality of life · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs sham yoga
Mental quality of life · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs sham yoga
Depression · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs sham yoga
Adverse events · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs non‐exercise
Outcomesa · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Yoga vs non‐exercise
Back‐specific functional status · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted11 studies · 1155 participantsLow
Yoga vs non‐exercise
Pain · people with chronic non‐specific low back pain
Yoga for chronic non‐specific low back pain (2022) · Cochrane
no estimate extracted9 studies · 946 participantsModerate
Systemic corticosteroids vs placebo
Pain (continuous) Standardized to 0–10 scale · people with radicular low back pain (not due to spinal stenosis)
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extracted5 studies · 430 participantsModerate
Systemic corticosteroids vs placebo
Function (continuous) RDQ‐18 (scale 0–18) · people with non‐radicular low back pain
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extracted1 study · 86 participantsLow
Systemic corticosteroids vs placebo
Function (dichotomous) RDQ‐18 = 0 · people with non‐radicular low back pain
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
RR 1.05 [0.82, 1.33]1 study · 86 participantsLow
Systemic corticosteroids vs placebo
Participants who underwent surgery · people with non‐radicular low back pain
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Systemic corticosteroids vs placebo
Participants who experienced a serious adverse event · people with non‐radicular low back pain
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Systemic corticosteroids vs placebo
Participants who experienced any adverse event Adverse event regardless of severity · people with non‐radicular low back pain
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
RR 0.45 [0.23, 0.88]1 study · 86 participantsLow
Systemic corticosteroids vs placebo
Pain (continuous) Standardized to 0–10 scale · people with spinal stenosis
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extracted2 studies · 154 participantsModerate
Systemic corticosteroids vs placebo
Function (continuous) RDQ‐18 (scale 0–18) · people with spinal stenosis
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extracted2 studies · 154 participantsModerate
Systemic corticosteroids vs placebo
Participants who experienced any adverse event · people with spinal stenosis
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extractedNRNo studies
Systemic corticosteroids vs placebo
Pain (dichotomous) Pain improved (definitions varied)c · people with radicular low back pain (not due to spinal stenosis)
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
RR 1.21 [0.88, 1.66]2 studies · 345 participantsModerate
Systemic corticosteroids vs placebo
Function (continuous) SMD (scales varied) · people with radicular low back pain (not due to spinal stenosis)
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extracted4 studies · 364 participantsLow
Systemic corticosteroids vs placebo
Function (dichotomous) Function improved (definitions varied)f · people with radicular low back pain (not due to spinal stenosis)
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
RR 1.52 [1.22, 1.91]3 studies · 403 participantsModerate
Systemic corticosteroids vs placebo
Participants who underwent surgery Underwent surgery · people with radicular low back pain (not due to spinal stenosis)
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
RR 1 [0.68, 1.47]5 studies · 442 participantsModerate
Systemic corticosteroids vs placebo
Participants who experienced a serious adverse event Adverse event requiring hospitalization or resulting in death · people with radicular low back pain (not due to spinal stenosis)
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
RR 0.74 [0.13, 4.33]2 studies · 267 participantsVery low
Systemic corticosteroids vs placebo
Participants with hyperglycemia "Transient hyperglycemia" or blood sugar increase ≥ 50 mg/dL · people with radicular low back pain (not due to spinal stenosis)
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
RR 1.07 [0.47, 2.47]2 studies · 151 participantsLow
Systemic corticosteroids vs placebo
Pain (continuous) Standardized to 0–10 scale · people with non‐radicular low back pain
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
no estimate extracted1 study · 86 participantsLow
Systemic corticosteroids vs placebo
Pain (dichotomous) No pain in last 24 hours · people with non‐radicular low back pain
Systemic corticosteroids for radicular and non‐radicular low back pain (2022) · Cochrane
RR 0.95 [0.66, 1.39]1 study · 86 participantsLow