Table 3.
The anterior-to-posterior gradient of qEEG parameters in patients and control group.
| Patients group | Critically Ill subgroup | Non-critically Ill subgroup | Control group | Poor Long-term outcome | Favorable long-term outcome | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Anterior area | Posterior area | P-value | Anterior area | Posterior area | P-value | Anterior area | Posterior area | P-value | anterior area | Posterior area | P-value | Anterior area | Posterior area | P-value | Anterior area | Posterior area | P-value | |
| aEEG upper margin | 10.85 (9.1,12.4) |
10.2 (8.8,12.4) |
0.341 | 11.4 (8.2,12.8) |
9.1 (8,12.1) |
0.245 | 10.8 (9.7,11.85) |
10.5 (9.6,12.6) |
1.000 | 10.8 (10,11.4) |
11.4 (10.2,13.6) |
0.103 | 11 (10,12.5) |
10.95 (10.3,12.4) |
0.959 | 10.2 (8.3,12.25) |
9.35 (7.8,12.4) |
0.224 |
| aEEG lower margin | 8.95 (7.4,10.3) |
8.45 (6.8,10.2) |
0.162 | 9.3 (6.7,11) |
7.25 (6.5,10.2) |
0.124 | 8.8 (7.9,9.8) |
8.6 (7.65,10.35) |
0.753 | 8.9 (7.9,9) |
9.45 (8.2,11.4) |
0.047 | 9.2 (8.2,10.3) |
9.2 (8.6,10) |
0.759 | 8.4 (6.7,10.1) |
7.45 (6.35,10.45) |
0.127 |
| aEEG Bandwidth | 1.7 (1.6,2) |
1.7 (1.5,1.5) |
0.918 | 1.65 (1.5,2) |
1.65 (1.5,2.1) |
0.777 | 1.7 (1.65,1.95) |
1.8 (1.65,2) |
0.811 | 1.9 (1.8,2.1) |
1.9 (1.8,2.1) |
1.000 | 1.8 (1.7,2) |
1.95 (1.7,2.1) |
0.603 | 1.65 (1.55,1.85) |
1.6 (1.5,1.8) |
0.498 |
| SEF-95 | 1.31 (1.24,1.42) |
1.29 (1.19,1.4) |
0.258 | 1.32 (1.29,1.44) |
1.36 (1.24,1.4) |
1.000 | 1.31 (1.205,1.41) |
1.23 (1.185,1.34) |
0.091 | 1.39 (1.35,1.4) |
1.38 (1.35,1.4) |
0.959 | 1.3 (1.15,1.4) |
1.24 (1.18,1.29) |
0.240 | 1.32 (1.3,1.43) |
1.36 (1.21,1.43) |
0.569 |
| Total power | 27.86 (19.25,61.56) |
18.88 (10.58,33.86) |
0.059 | 27.04 (11.21,64.15) |
16.51 (10.58,43.39) |
0.433 | 29.58 (20.845,48.95) |
22.68 (10.38,27.9) |
0.050 | 18.915 (16.88,26.01) |
23.57 (14.63,35.69) |
0.959 | 31.475 (25,66.96) |
27.9 (21.16,43.39) |
0.285 | 24.82 (15.23,50.87) |
10.68 (9.33,26.47) |
0.070 |
| δ RBP | 56.45 (40.9,65.39) |
49.75 (41.61,65.05) |
0.638 | 49.22 (39.46,58.37) |
51.045 (41.61,66.5) |
0.158 | 61.46 (52.305,69.94) |
49.75 (38.285,61.945) |
0.060 | 54.535 (41.08,55.98) |
39.715 (29.78,48.56) |
0.005 | 57.615 (49.86,65.39) |
57.11 (39.87,67.91) |
0.721 | 55.235 (40.18,66.43) |
49.75 (42.66,61.95) |
0.756 |
| θ RBP | 15.105 (11.76,21.13) |
16.545 (12.94,21.77) |
0.409 | 19.265 (11.6,23.9) |
16.545 (12.94,21.77) |
0.778 | 14.28 (12.54,19.175) |
16.685 (13.305,21.055) |
0.136 | 16.21 (15.32,20.44) |
15.72 (14.95,17.62) |
0.333 | 14.28 (11.21,20.61) |
16.69 (12.07,20.18) |
0.799 | 17.42 (12.04,22.515) |
16.55 (13.19,22.19) |
0.255 |
| α RBP | 6.18 (4.31,10.08) |
7.995 (5.26,14.93) |
0.002 | 6.59 (5.25,11.16) |
7.09 (4.91,11.94) |
0.363 | 6.18 (4.235,8.56) |
12.675 (6.78,21.14) |
0.002 | 8.585 (7.4,11.56) |
13.865 (10.14,14.9) |
0.005 | 7.61 (5.98,11.16) |
9.64 (6.65,20.46) |
0.114 | 6.03 (4.195,8.84) |
7.66 (4.84,14.65) |
0.005 |
| β RBP | 10.675 (7.44,22.25) |
9.765 (6.82,15.27) |
0.228 | 12.07 (7.54,22.57) |
11.9 (8.79,16.62) |
0.470 | 10.595 (6.52,16.15) |
8.575 (5.865,12.57) |
0.388 | 16.38 (11.55,18.34) |
17.44 (14.79,26.7) |
0.075 | 10.175 (5.43,20.77) |
8.17 (6.11,13.87) |
0.241 | 10.93 (7.49,23.705) |
10.68 (8.09,18.48) |
0.501 |
| δ ABP | 15.01 (8.71,24.34) |
10.095 (5.6,13.72) |
0.025 | 10.83 (6.45,37.88) |
11.495 (5.7,20.86) |
0.363 | 16.535 (9.875,20.745) |
8.46 (5.385,12.725) |
0.015 | 8.36 (7.03,14.01) |
7.015 (3.63,13.56) |
0.169 | 16.59 (8.71,37.88) |
11.76 (9.73,20.86) |
0.169 | 12.92 (7.9,22.97) |
6.48 (4.82,12.18) |
0.049 |
| θ ABP | 4.125 (2.5,6.93) |
2.89 (1.47,6.32) |
0.086 | 4.475 (1.87,10.84) |
2.39 (1.35,6.45) |
0.198 | 4.125 (2.58,6.17) |
3.48 (1.735,6.135) |
0.272 | 3.575 (2.39,4.36) |
3.675 (2.36,5.61) |
0.799 | 4.30 (3.06,5.57) |
3.83 (2.83,6.01) |
0.799 | 3.28 (2.18,8.16) |
1.95 (1.34,6.39) |
0.063 |
| α ABP | 1.915 (0.79,4.82) |
1.755 (0.67,4.95) |
0.304 | 2.17 (0.56,5.26) |
1.155 (0.55,4.38) |
0.778 | 1.915 (0.89,2.505) |
2.185 (1.195,5.63) |
0.071 | 2.03 (1.34,2.64) |
3.17 (1.56,8.07) |
0.047 | 2.43 (1.08,4.82) |
2.61 (1.99,6.31) |
0.445 | 0.89 (0.59,4.35) |
1.17 (0.5,4.67) |
0.535 |
| β ABP | 3.1 (1.64,4.25) |
1.75 (1.04,3.05) |
0.020 | 3.43 (1.55,5.18) |
2.15 (1.04,3.05) |
0.300 | 2.14 (1.695,4.105) |
1.325 (1.04,2.765) |
0.019 | 3.01 (2.01,4.27) |
4.23 (2.63,5.97) |
0.114 | 3.37 (1.98,5.18) |
2.24 (1.22,3.1) |
0.093 | 2.58 (1.60,4.18) |
1.56 (1.01,2.82) |
0.088 |
aEEG, amplitude-integrated electroencephalogram; RBP, relative band power; ABP, absolute band power; SEF-95, spectral edge frequency 95%.