Correction to: Comparison of the inward leakage rate between N95 filtering facepiece respirators and modified surgical masks during the COVID-19 pandemic

Correction to: Environ Health Prev Med 29, 8 (2024)

https://doi.org/10.1265/ehpm.23-00303

After this article was published [1], it was discovered that Table 6 contained errors due to incorrect transcription, with the values for Measure 2, 3, 4, and 7 inaccurately written. The numerical data in the Abstract Graphic, derived from the erroneous Table 6, also contained inaccuracies. Therefore, we will correct it as follows.

Table 6 The inward leakage rate as determined by the quantitative fit test with different mask-wearing options

	Mask-wearing option
	Measure 0 (Initial)			Measure 1 (Surgical)			Measure 2 (Surgical-W)
	Median	25th	75th	Median	25th	75th	Median	25th	75th
All	100.00	68.51	100.00	96.44	72.83	100.00	50.82	35.68	76.24
HCWs	93.78	74.46	100.00	93.62	65.32	100.00	58.01	40.67	75.81
General population	100.00	51.59	100.00	100.00	73.02	100.00	43.26	33.33	74.34
Male	100.00	69.59	100.00	86.28	68.65	100.00	39.78	31.35	59.81
Female	100.00	70.20	100.00	98.60	77.08	100.00	59.34	40.01	78.07
ILR	n (%)			n (%)			n (%)
100%	25 (46.3)			23 (42.6)			4 (7.4)
50–99.9%	13 (24.1)			26 (48.1)			24 (44.4)
5–49.9%	9 (16.7)			5 (9.3)			26 (48.1)
<5%	0 (0)			0 (0)			0 (0)

	Mask-wearing option
	Measure 3 (S-S double)			Measure 4 (S-U double)			Measure 5 (N95)
	Median	25th	75th	Median	25th	75th	Median	25th	75th
All	38.66	16.78	55.40	37.21	25.39	59.23	0.78	0.29	2.43
HCWs	41.05	18.51	53.58	40.00	23.69	62.87	0.58	0.30	1.17
General population	28.94	17.05	56.34	35.39	27.03	49.08	0.93	0.34	2.71
Male	34.46	18.50	51.88	33.48	24.57	52.96	0.96	0.48	2.28
Female	38.66	17.07	65.01	40.33	28.28	62.53	0.78	0.29	2.24
ILR	n (%)			n (%)			n (%)
100%	4 (7.4)			3 (5.6)			0 (0)
50–99.9%	13 (24.1)			14 (25.9)			0 (0)
5–49.9%	36 (66.7)			37 (68.5)			5 (9.3)
<5%	1 (1.9)			0 (0)			49 (90.7)

	Mask-wearing option
	Measure 6 (Surgical)			Measure 7 (Surgical-W)			Measure 8 (N95)
	Median	25th	75th	Median	25th	75th	Median	25th	75th
Total	37.33	30.31	50.00	20.41	16.67	33.15	2.39	1.61	3.17
HCWs	48.10	33.33	50.00	27.66	16.69	33.33	2.11	1.59	2.76
General population	33.33	26.62	48.33	20.00	15.11	29.69	2.65	1.70	3.61
Male	37.33	27.09	50.00	27.83	15.89	33.33	2.90	2.20	3.64
Female	36.65	32.86	49.44	20.30	16.67	31.15	1.96	1.50	2.71
ILR	n (%)			n (%)			n (%)
100%	0 (0)			0 (0)			0 (0)
50–99.9%	12 (30.8)			1 (2.6)			0 (0)
5–49.9%	27 (69.2)			36 (94.7)			4 (10.5)
<5%	0 (0)			1 (2.6)			34 (89.5)

HCW, healthcare worker; ILR, inward leakage rate.

References

• 1.  Onishi K, Nojima M. Comparison of the inward leakage rate between N95 filtering facepiece respirators and modified surgical masks during the COVID-19 pandemic. Environ Health Prev Med. 2024;29:8. https://doi.org/10.1265/ehpm.23-00303.