European Journal of Medical Research

Table 5 Variability according to the three one-minute methods compared with the values obtained during to the 24 h analysis with and without impedance events

From: Esophageal impedance baseline according to different time intervals

		Method 1 (%)		Method 2 (%)		Method 3 (%)
		Maximum	Minimum	Maximum	Minimum	Maximum	Minimum
Channel 1	24 h with IE	5.47	−44.10	5.35	−45.51	9.19	−40.35
	24 h without IE	8.76	−9.43	6.01	−10.88	16.05	−14.65
Channel 2	24 h with IE	5.34	−5.50	5.77	−9.35	15.60	−9.50
	24 h without IE	9.74	−8.15	10.18	−12.05	20.43	−16.65
Channel 3	24 h with IE	8.86	−11.42	11.62	−15.49	21.43	−9.13
	24 h without IE	6.58	−16.58	14.52	−13.11	24.56	−17.58
Channel 4	24 h with IE	11.07	−11.36	15.17	−17.72	20.85	−38.01
	24 h without IE	11.53	−17.12	21.69	−15.09	26.32	−33.09
Channel 5	24 h with IE	11.87	−12.79	14.14	−10.24	18.52	−24.13
	24 h without IE	11.75	−17.09	18.36	−17.61	21.92	−28.38
Channel 6	24 h with IE	7.14	−6.13	6.50	−9.87	13.53	−24.49
	24 h without IE	11.90	−14.44	8.63	−21.17	22.82	−28.01

Variability expresses the difference in the impedance baseline obtained with one method. Negative values mean that the value obtained with the method is lower than that obtained in the 24 h recording. IE: impedance events.

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ISSN: 2047-783X

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