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Table 5 Proportion of 6-sec observations of RAP <0.6 in both signals (left), RAP ≥ 0.6 in both signals (middle) and RAP ≥ 0.6 in one signal while RAP < 0.6 in another signal (right)

From: The effect of baseline pressure errors on an intracranial pressure-derived index: results of a prospective observational study

Pat ID

RAP SIGNAL 1 < 0.6/RAP SIGNAL 2 < 0.6

RAP SIGNAL 1 ≥ 0.6/RAP SIGNAL 2 ≥ 0.6

RAP SIGNAL 1 ≥ 0.6/RAP SIGNAL 2 < 0.6 or RAP SIGNAL 1 < 0.6/RAP SIGNAL 2 ≥ 0.6

1

53,345 (73.1%)

14,269 (19.5%)

5,391 (7.4%)

2

35,400 (84.0%)

498 (1.2%)

6,264 (14.9%)

3

71,434 (34.6%)

114,056 (55.2%)

21,218 (10.3%)

4

51,401 (65.2%)

22,404 (28.4%)

5,069 (6.4%)

5

12,803 (29.1%)

29,420 (67.0%)

1,713 (3.9%)

6

25,215 (57.5%)

13,893 (31.7%)

4,780 (10.9%)

7

31,849 (25.1%)

85,127 (67.2%)

9,792 (7.7%)

8

69,759 (46.6%)

47,354 (31.6%)

32,512 (21.7%)

9

60,638 (36.3%)

80,763 (48.3%)

25,843 (15.5%)

10

112,598 (79.7%)

23,769 (16.8%)

4,991 (3.5%)

11

21,155 (35.5%)

35,341 (59.4%)

3,024 (5.1%)

12

12,949 (10.5%)

108,783 (88.2%)

1,650 (1.3%)

13

38,716 (71.2%)

8,457 (15.5%)

7,238 (13.3%)

14

54,390 (65.1%)

23,122 (27.7%)

5,986 (7.2%)

15

104,728 (47.5%)

94,725 (43.0%)

20,823 (9.5%)

16

71,439 (63.6%)

33,122 (29.5%)

7,784 (6.9%)

  1. RAP: correlation coefficient (R) between the intracranial pressure (ICP) wave amplitude (A) and the mean ICP level (P).