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. 2022 Sep 5;2022(9):CD013877. doi: 10.1002/14651858.CD013877.pub3

Comparison 3. Intranasal hypertonic saline spray compared to no intervention.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
3.1 Duration of olfactory dysfunction 1 100 Mean Difference (IV, Fixed, 95% CI) ‐3.10 [‐3.98, ‐2.22]
3.2 Change in sense of smell (as assessed by participants) 1   Mean Difference (IV, Fixed, 95% CI) Subtotals only