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Table 5 Levels of BPE (difference in mean ICP between sensors 1 and 2 with close to identical waveform)

From: Baseline pressure errors (BPEs) extensively influence intracranial pressure scores: results of a prospective observational study

  

Levels of BPE (absolute values)

Pat.

Number of 6-sec TS observations a

≥2 mmHg/<5 mmHg N (%)

≥5 mmHg/<10 mmHg N (%)

≥10 mmHg/<15 mmHg N (%)

≥15 mmHg/<20 mmHg N (%)

1

49,664

1,115 (2%)

48,159 (97%)

389 (1%)

1

2

5,987

2,027 (34%)

3,576 (60%)

100 (2%)

256 (4%)

3

12,6481

3,351 (3%)

311

16

5

4

74,612

90

   

5

39,938

551 (1%)

   

6

29,613

12,819 (43%)

16,794 (57%)

  

7

104,784

6,565 (6%)

100

  

8

107,760

81,708 (76%)

17,120 (16%)

2,897 (3%)

325

9

122,850

2,406 (2%)

63

36

32

10

135,700

32,788 (24%)

30

  

11

57,124

6,934 (12%)

126

1

 

12

122,731

37

   

13

42,802

28,677 (67%)

10,700 (25%)

3,305 (8%)

118

14

73,063

2,596 (4%)

3

  

15

185,697

143,272 (77%)

4,415 (2%)

7

11

16

98,086

100

20,474 (21%)

77,512 (79%)

 
  1. BPE: Baseline Pressure Error. aIncluding only 6-s TS with close to identical waveform, quantified as 6-sec TS with difference in MWA <0.5 mmHg. Numbers (and percentages) that we consider as major.