Gap finder

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.

Population

Intervention or exposure

Comparison

Outcome

Any field or review title

Field or topic

Source

Review versions

3 questions in 1 reviews · cluster CL0118

current versions

No studies 0 · 0%Ungraded 2 · 66.7%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 1 · 33.3%

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.

Intervention categories, outcome domains and clusters are a proposed key pending human validation. Clear all filters

Question	Effect	Evidence	Status / GRADE
Botulinum toxin (BoNT) injection into salivary glands vs Placebo injection Drooling Severity and Frequency Scale (DSFS) score · Adults with Parkinson's disease and sialorrhea (drooling) · Approximately 1 month post-injection (one study ~1 week), BoNT type A The effectiveness and safety of botulinum toxin injections for the treatment of sialorrhea with Parkinson's… (2023)	SMD -0.80 [-1.25, -0.36]	4 studies · 88 participants	Ungraded
Botulinum toxin (BoNT) injection into salivary glands vs Placebo injection Drooling Severity and Frequency Scale (DSFS) score · Adults with Parkinson's disease and sialorrhea (drooling) · Approximately 1 month post-injection (one study ~1 week), BoNT type B The effectiveness and safety of botulinum toxin injections for the treatment of sialorrhea with Parkinson's… (2023)	SMD -1.11 [-1.48, -0.74]	5 studies · 136 participants	Ungraded
Botulinum toxin (BoNT) injection into salivary glands vs Placebo injection Drooling Severity and Frequency Scale (DSFS) score · Adults with Parkinson's disease and sialorrhea (drooling) · Approximately 1 month post-injection (one study ~1 week) The effectiveness and safety of botulinum toxin injections for the treatment of sialorrhea with Parkinson's… (2023)	SMD -0.98 [-1.27, -0.70]	9 studies · 224 participants	High