Table 1. Number of vestibular neuritis (VN) cases per quarter.

Significant outlier: *p=0.024, **p=0.002

CI: confidence interval

Year-season	Total number of cases examined per quarter	VN cases per quarter by examination date	Rate of VN	VN cases per quarter by date of onset
2016-4Q				2
(2017)				(0)
2018-3Q	23	0	0	1
2018-4Q	22	2	0.09	1
2019-1Q	22	0	0	1
2019-2Q	23	2	0.09	0
2019-3Q	33	1	0.03	1
2019-4Q	25	2	0.08	0
2020-1Q	20	0	0	2
2020-2Q	5	1	0.2	1
2020-3Q	16	1	0.06	2
2020-4Q	20	0	0	2
2021-1Q	20	2	0.1	0
2021-2Q	38	2	0.05	0
2021-3Q	38	5*	0.13	5**
2021-4Q	37	3	0.08	2
2022-1Q	36	2	0.06	1
Average		1.53	0.06	1.31
95% CI		(0.87–2.20)	(0.04–0.09)	(0.72–1.91)