causal
Analysis v1
Strong Support
Using saltwater nose rinses and gargling might cut down how often colds spread in families by about a third, which could help keep more people from getting sick.
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0
Evidence from Studies
Supporting (1)
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Community contributions welcome
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A pilot, open labelled, randomised controlled trial of hypertonic saline nasal irrigation and gargling for the common cold
Randomized Controlled Trial
Human
2019 Jan 31The study tested the same saltwater nose rinse and gargle method and found it reduced cold spread in homes by 35%, just like the claim said, but it was a small study so bigger ones are needed.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.