Skip to main content

Table 1 Alarm delays in minutes for the regression and SD algorithms compared to calculated conventional alarm delays with an alarm threshold set at 400 mmHg in baseline single-pump scenarios

From: Multi-infusion with integrated multiple pressure sensing allows earlier detection of line occlusions

Rate (ml/h)

Detection algorithm

Alarm delay mean ± SD (minutes)

Conventional alarm delay mean ± SD (minutes)1

P-value2

1

SD

0.6 ± 0.1

21.9 ± 1.9

 < 0.01

 

Regression

3.4 ± 0.6

 

 < 0.01

2

SD

0.6 ± 0.1

10.8 ± 1.1

 < 0.01

 

Regression

2.1 ± 0.2

 

 < 0.01

4

SD

0.4 ± 0.0

6.0 ± 1.1

 < 0.01

 

Regression

1.6 ± 0.1

 

0.03

8

SD

0.3 ± 0.0

2.7 ± 0.2

 < 0.01

 

Regression

1.3 ± 0.1

 

 < 0.01

16

SD

0.3 ± 0.0

1.5 ± 0.1

 < 0.01

 

Regression

1.3 ± 0.2

 

0.88

32

SD

0.2 ± 0.0

1.4 ± 0.5

0.05

 

Regression

1.2 ± 0.2

 

0.54

Overall

SD

0.4 ± 0.2

7.4 ± 7.5

 < 0.01

 

Regression

1.8 ± 0.8

 

 < 0.01

  1. 1Calculated alarm delay for our local threshold setting of 400 mmHg
  2. 2Paired Student t-test
  3. All scenarios were performed in triplicate