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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)

274 questions in 25 reviews · Movement Disorders

current versions
No studies 13 · 4.7%Ungraded 7 · 2.6%Very low 66 · 24.1%Low 66 · 24.1%Moderate 87 · 31.8%High 35 · 12.8%

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
Opioids vs placebo
RLS symptoms · RLS
Opioids for restless legs syndrome (2016) · Cochrane
no estimate extracted1 study · 276 participantsLow
Opioids vs placebo
Drug responders · RLS
Opioids for restless legs syndrome (2016) · Cochrane
RR 1.82 [1.37, 2.42]1 study · 276 participantsLow
Opioids vs placebo
Drug responders · RLS
Opioids for restless legs syndrome (2016) · Cochrane
RR 1.92 [1.49, 2.48]1 study · 276 participantsLow
Opioids vs placebo
Remitters · RLS
Opioids for restless legs syndrome (2016) · Cochrane
RR 2.14 [1.45, 3.16]1 study · 276 participantsLow
Opioids vs placebo
Adverse Events · RLS
Opioids for restless legs syndrome (2016) · Cochrane
RR 1.22 [1.07, 1.39]1 study · 304 participantsLow
Opioids vs placebo
Quality of life · RLS
Opioids for restless legs syndrome (2016) · Cochrane
no estimate extracted1 study · 276 participantsLow
Intervention NR
Functional abilities Change in TRS part B score (motor tasks).36 points (0 is better) Change in TRS part C score (functional disability), 32 points (0 is better) · patients with essential tremor
Pregabalin for essential tremor (2016) · Cochrane
no estimate extracted1 study · 22 participantsVery low
Intervention NR
Study withdrawal Number of patients withdrawn from the study · patients with essential tremor
Pregabalin for essential tremor (2016) · Cochrane
no estimate extracted1 study · 22 participantsVery low
Intervention NR
Adverse events Number of adverse events · patients with essential tremor
Pregabalin for essential tremor (2016) · Cochrane
RD 0.181 study · 22 participantsVery low
Virtual reality vs active intervention (short term)
Gait ( · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted4 studies · 129 participantsLow
Virtual reality vs passive intervention (short term)
Quality of life ( · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted1 study · 24 participantsVery low
Virtual reality vs passive intervention (short term)
Adverse events · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted1 study · 24 participantsVery low
Virtual reality vs active intervention (short term)
Gait ( · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted3 studies · 106 participantsLow
Virtual reality vs active intervention (short term)
Gait ( · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted3 studies · 106 participantsLow
Virtual reality vs active intervention (short term)
Balance ( · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted5 studies · 155 participantsLow
Virtual reality vs active intervention (short term)
Balance ( · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted3 studies · 86 participantsLow
Virtual reality vs active intervention (short term)
Quality of life ( · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted4 studies · 106 participantsVery low
Virtual reality vs active intervention (short term)
Number of adverse events · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted4 studies · 115 participantsLow
Virtual reality vs passive intervention (short term)
Gait (stride length and velocity) · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted1 study · 24 participantsVery low
Virtual reality vs passive intervention (short term)
Balance ( · rehabilitation in Parkinson's disease
Virtual reality for rehabilitation in Parkinson's disease (2016) · Cochrane
no estimate extracted2 studies · 44 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham tDCS
Impairment/ disability Unified Parkinson's Disease Rating Scale (UPDRS; change in global UPDRS score). Scale from: 0 to 199 (lower score means less impairment/disability) · Patients with idiopathic Parkinson's disease
Transcranial direct current stimulation (tDCS) for idiopathic Parkinson's disease (2016) · Cochrane
no estimate extracted2 studies · 45 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham tDCS
Off time Self assessment (logfile) Scale from: 0 to 72 (lower score means less impairment/disability) · Patients with idiopathic Parkinson's disease
Transcranial direct current stimulation (tDCS) for idiopathic Parkinson's disease (2016) · Cochrane
no estimate extracted1 study · 25 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham tDCS
On time with dyskinesia Self assessment (logfile) Scale from: 0 to 72 (lower score means less impairment/disability) · Patients with idiopathic Parkinson's disease
Transcranial direct current stimulation (tDCS) for idiopathic Parkinson's disease (2016) · Cochrane
no estimate extracted1 study · 25 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham tDCS
Gait speed at the end of the intervention phase Measures of timed gait. Scale from: 0 (lower score means less impairment/disability) · Patients with idiopathic Parkinson's disease
Transcranial direct current stimulation (tDCS) for idiopathic Parkinson's disease (2016) · Cochrane
no estimate extracted2 studies · 41 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham tDCS
Health‐related quality of life ‐ physical health SF‐ 12v2. Scale from: 0 to 100 (scores less than 50 indicate health above the mean and scores less than 50 indicate health below the mean) · Patients with idiopathic Parkinson's disease
Transcranial direct current stimulation (tDCS) for idiopathic Parkinson's disease (2016) · Cochrane
no estimate extracted1 study · 25 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham tDCS
Health‐related quality of life ‐ mental health SF‐12v2. Scale from: 0 to 100 (scores less than 50 indicate health above the mean and scores less than 50 indicate health below the mean) · Patients with idiopathic Parkinson's disease
Transcranial direct current stimulation (tDCS) for idiopathic Parkinson's disease (2016) · Cochrane
no estimate extracted1 study · 25 participantsVery low
Transcranial direct current stimulation (tDCS) vs sham tDCS
Safety/ acceptability Dropouts and adverse events (lower rate means better safety/acceptability) · Patients with idiopathic Parkinson's disease
Transcranial direct current stimulation (tDCS) for idiopathic Parkinson's disease (2016) · Cochrane
no estimate extracted4 studies · 101 participantsVery low
Treadmill training vs no treadmill training or active control intervention or gait training
Gait speed at the end of the study ‐ Active control group (co‐interventions were similar in both groups) Measures of timed gait. Scale from: 0 to inf. · patients with patients with Parkinson's disease
Treadmill training for patients with Parkinson's disease (2015) · Cochrane
no estimate extracted14 studies · 434 participantsModerate
Treadmill training vs no treadmill training or active control intervention or gait training
Gait speed at the end of the study ‐ No interventioncontrol group (co‐interventions were not similar in both groups) Measures of timed gait. Scale from: 0 to inf. · patients with patients with Parkinson's disease
Treadmill training for patients with Parkinson's disease (2015) · Cochrane
no estimate extracted3 studies · 76 participantsVery low
Treadmill training vs no treadmill training or active control intervention or gait training
walking distance in m (at the end of study; all studies) ‐ Active control group (co‐interventions were similar in both groups) Measures of timed gait. Scale from: 0 to inf. · patients with patients with Parkinson's disease
Treadmill training for patients with Parkinson's disease (2015) · Cochrane
no estimate extracted9 studies · 385 participantsLow
Treadmill training vs no treadmill training or active control intervention or gait training
walking distance in m (at the end of study; all studies) ‐ No intervention control group (co‐interventions were not similar in both groups) Measures of timed gait. Scale from: 0 to inf. · patients with patients with Parkinson's disease
Treadmill training for patients with Parkinson's disease (2015) · Cochrane
no estimate extracted1 study · 31 participantsUngraded
Treadmill training vs no treadmill training or active control intervention or gait training
acceptability and safety of treadmill training ‐ Active control group (co‐interventions were similar in both groups) Number of adverse events and drop‐outs · patients with patients with Parkinson's disease
Treadmill training for patients with Parkinson's disease (2015) · Cochrane
no estimate extracted15 studies · 531 participantsModerate
Treadmill training vs no treadmill training or active control intervention or gait training
acceptability and safety of treadmill training ‐ No intervention control group (co‐interventions were not similar in both groups) Number of adverse events and drop‐outs · patients with patients with Parkinson's disease
Treadmill training for patients with Parkinson's disease (2015) · Cochrane
no estimate extracted3 studies · 102 participantsLow
Intervention NR
Tremor severityClinical rating scale. Scale from 0 to 4 · patients with essential tremor
Alprazolam for essential tremor (2015) · Cochrane
no estimate extracted1 study · 24 participantsVery low
Intervention NR
Withdrawals due to adverse events · patients with essential tremor
Alprazolam for essential tremor (2015) · Cochrane
no estimate extracted1 study · 24 participantsVery low
Intervention NR
Quality of life Investigator global assessment Scale from 1 to 7 · patients with essential tremor
Alprazolam for essential tremor (2015) · Cochrane
no estimate extracted1 study · 24 participantsVery low
Intervention NR
Subjective impact of fatigue on ADL, fatigue severity (post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
no estimate extracted1 study · 340 participantsModerate
Intervention NR
Nausea (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 0.14 [0.01, 2.6]1 study · 40 participantsModerate
Intervention NR
HRQOL (post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
no estimate extracted1 study · 36 participantsModerate
Intervention NR
Subjective impact of physical fatigue on ADL (post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
no estimate extracted1 study · 1176 participantsHigh
Intervention NR
Anxiety (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 0.57 [0.33, 0.99]1 study · 1176 participantsHigh
Intervention NR
Headache (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 0.8 [0.5, 1.29]1 study · 1176 participantsModerate
Intervention NR
Hypertension (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 0.53 [0.27, 1.06]1 study · 1176 participantsModerate
Intervention NR
Impulse control disorders (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 3.07 [0.13, 75.26]1 study · 1176 participantsModerate
Intervention NR
Nausea (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 0.89 [0.49, 1.6]1 study · 1176 participantsModerate
Intervention NR
Orthostatic hypotension (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 0.61 [0.15, 2.56]1 study · 1176 participantsModerate
Intervention NR
Subjective impact of fatigue on ADL, fatigue severity (post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
no estimate extracted1 study · 61 participantsModerate
Intervention NR
Anxiety (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 0.46 [0.15, 1.43]1 study · 361 participantsModerate
Intervention NR
Subjective fatigue severity (post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
no estimate extracted1 study · 61 participantsModerate
Intervention NR
Anxiety (adverse effect, post‐intervention) · people with Parkinson's disease
Interventions for fatigue in Parkinson's disease (2015) · Cochrane
RR 1.03 [0.07, 15.78]1 study · 61 participantsModerate