Table 5.

Results of validation. Validation was defined as visible movement of the eardrum while rumbling in isolation. Results are presented as the number of participants showing visible movement out of the total number of participants in each category

	General population	Neurological population	All
Participants with clear view	68	2	70
Validated movement in isolation: No. validated/ No. all participants from category (%)
Aware of rumbling pre-survey	51/61 (84%)	1/1 (100%)	52/62 (84%)
Previously aware isolated rumbler	50/60 (83%)	1/1 (100%)	51/61 (84%)
Previously aware non-isolated rumbler	1/1 (100%)	0	1/1 (100%)
Not aware of rumbling before survey	4/7 (57%)	0/1	4/8 (50%)
New isolated rumbler	3/6 (50%)	0	3/6 (50%)
New non-isolated rumbler	1/1 (100%)	0/1	1/2 (50%)
Total visible movement in isolation	55/68 (81%)	1/2 (50%)	56/70 (80%)