Skip to main content

Table 3 Median, minimum and maximum values obtained according to the three one-minute methods

From: Esophageal impedance baseline according to different time intervals

 

Method 1

Method 2

Method 3

 

Median

Minimum

Maximum

Median

Minimum

Maximum

Median

Minimum

Maximum

Channel 1

3,916.4

2,664.4

4,861.1

3,836.1

2,719.3

4,533.9

3,906.3

2,848.0

5,098.2

Channel 2

3,788.9

2,504.7

4,766.6

3,721.6

2,611.1

4,812.3

3,805.3

2,655.2

4,847.2

Channel 3

3,443.1

2,328.2

4,674.6

3,468.5

2,363.0

4,756.4

3,565.5

2,513.0

5,463.0

Channel 4

3,501.5

2,434.6

4,532.4

3,508.0

2,291.0

4,945.5

3,470.1

2,124.7

5,188.0

Channel 5

3,859.0

2,757.0

5,535.2

3,833.5

2,642.8

5,862.3

3,770.6

2,287.7

5,619.2

Channel 6

3,567.7

2,065.3

4,886.5

3,517.7

1,967.5

4,892.4

3,510.4

1,992.7

4,910.8

  1. Median basal impedance according to the first stable minute without impedance event, every hour (method 1), every 2 hours (method 2) and every 4 hours (method 3).
  2. The median and range of the three one-minute methods are shown in Table 3. The variation in the IB according to the three methods was small (mean 2.5%, range 0.47% to 5.55%) (Table 4), but the variability was high (up to 45.5%) (Table 5). The difference in the median IB between the one-minute methods seems not to differ if compared with the IB over the total registration when excluding or maintaining all IEs (Tables 2 and 6). The high variability indicates that the IB is not really stable during a period of one minute without IE throughout the registration time. Variability is largest with method 3.
Back to article page

European Journal of Medical Research

ISSN: 2047-783X

Contact us