. 2020 Oct 5;131(5):E1415–E1421. doi: 10.1002/lary.29122

TABLE I.

Changes in Particle Concentration During Diagnostic Endoscopy.

Prescope (Mean, SD)	During Scope (mean, SD)	Postscope (mean, SD)	Mean Difference^* (95% CI)	P Value^*
6,194 (2,505)	6,021 (2,952)	6,014 (3,229)	−173 (−1,139 to 793)	.698

For prescope versus during scope; n = 11 procedures total.