Table 2.
Comparisons of qEEG parameters between patients and controls, critically ill patients and non-critically ill patients as well as patients with different outcomes.
| Patients group | Control group | P-value | Critically Ill subgroup | Non-critically Ill subgroup | P-value | Favorable short-term outcome | Poor short-term outcome | P-value | Favorable long-term outcome | Poor long-term outcome | P-value | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frontal area | aEEG Upper Margin (μV) | 10.9(9.1,12.4) | 10.8(10,11.4) | 0.860 | 11.4(8.2,12.8) | 10.8(9.7,11.9) | 0.918 | 11(9.1,12.1) | 10.7(8.8,12.8) | 0.563 | 10.2(8.3,12.25) | 11(10,12.5) | 0.257 |
| aEEG Lower Margin(μV) | 8.95(7.4,10.3) | 8.9(7.9,9) | 0.671 | 9.3(6.7,11) | 8.8(7.9,9.8) | 0.959 | 9(7.4,9.7) | 8.9(7.2,11) | 0.544 | 8.4(6.7,10.1) | 9.2(8.2,10.3) | 0.304 | |
| aEEG Bandwidth(μV) | 1.7(1.6,2) | 1.9(1.8,2.1) | 0.069 | 1.65(1.5,2) | 1.7(1.65,1.95) | 0.405 | 1.8(1.6,2) | 1.7(1.6,2) | 0.539 | 1.65(1.55,1.85) | 1.8(1.7,2) | 0.150 | |
| SEF-95(Hz) | 1.31(1.24,1.42) | 1.39(1.35,1.4) | 0.304 | 1.32(1.29,1.44) | 1.31(1.21,1.41) | 0.552 | 1.4(1.31,1.44) | 1.31(1.17,1.4) | 0.117 | 1.32(1.3,1.43) | 1.3(1.15,1.4) | 0.290 | |
| Total Power(μV) | 27.86(19.25,61.56) | 18.92(16.88,26.01) | 0.120 | 27.04(11.21,64.15) | 29.58(20.85,48.95) | 0.662 | 27.86(16.76,35.09) | 27.86(19.41,64.59) | 0.272 | 24.82(15.23,50.87) | 31.475(25,66.96) | 0.257 | |
| δ RBP(%) | 56.45(40.9,65.39) | 54.54(41.08,55.98) | 0.397 | 49.22(39.46,58.37) | 61.46(52.31,69.94) | 0.143 | 54.75(39.46,57.53) | 58.05(40.9,68.09) | 0.563 | 55.235(40.18,66.43) | 57.615(49.86,65.39) | 0.732 | |
| θ RBP(%) | 15.11(11.76,21.13) | 16.21(15.32,20.44) | 0.572 | 19.27(11.6,23.9) | 14.28(12.54,19.18) | 0.700 | 14.25(11.6,20.61) | 17.74(11.76,23.9) | 0.603 | 17.42(12.04,22.515) | 14.28(11.21,20.61) | 0.544 | |
| α RBP(%) | 6.18(4.31,10.08) | 8.59(7.4,11.56) | 0.072 | 6.59(5.25,11.16) | 6.18(4.24,8.56) | 0.625 | 7.86(6.11,10.08) | 5.98(4.08,10.42) | 0.203 | 6.03(4.195,8.84) | 7.61(5.98,11.16) | 0.236 | |
| β RBP(%) | 10.68(7.44,22.25) | 16.38(11.55,18.34) | 0.340 | 12.07(7.54,22.57) | 10.60(6.52,16.15) | 0.440 | 14.8(12.01,22.28) | 8.34(7.34,22.25) | 0.272 | 10.93(7.49,23.705) | 10.175(5.43,20.77) | 0.399 | |
| δ ABP(μV) | 15.01(8.71,24.34) | 8.36(7.03,14.01) | 0.148 | 10.83(6.45,37.88) | 16.54(9.88,20.75) | 0.520 | 9.39(8.71,21.6) | 16.5(8.67,37.88) | 0.418 | 12.92(7.9,22.97) | 16.59(8.71,37.88) | 0.510 | |
| θ ABP(μV) | 4.125(2.5,6.93) | 3.575(2.39,4.36) | 0.427 | 4.48(1.87,10.84) | 4.13(2.58,6.17) | 0.939 | 3.05(2.48,5.57) | 4.23(2.5,10.84) | 0.355 | 3.28(2.18,8.16) | 4.30(3.06,5.57) | 0.580 | |
| α ABP(μV) | 1.915(0.79,4.82) | 2.03(1.34,2.64) | 0.659 | 2.17(0.56,5.26) | 1.92(0.89,2.51) | 0.857 | 2.26(0.84,2.68) | 1.08(0.78,5.26) | 0.885 | 0.89(0.59,4.35) | 2.43(1.08,4.82) | 0.197 | |
| β ABP(μV) | 3.1(1.64,4.25) | 3.01(2.01,4.27) | 0.646 | 3.43(1.55,5.18) | 2.14(1.70,4.11) | 0.738 | 3.08(1.98,4.25) | 3.12(1.55,5.18) | 0.862 | 2.58(1.60,4.18) | 3.37(1.98,5.18) | 0.693 | |
| Parietal area | aEEG Upper Margin (μV) | 10.2(8.8,12.4) | 11.4(10.2,13.6) | 0.223 | 9.1(8,12.1) | 10.5(9.6,12.6) | 0.537 | 10.8(8.9,12.8) | 10.1(8,12.1) | 0.506 | 9.35(7.8,12.4) | 10.95(10.3,12.4) | 0.108 |
| aEEG Lower Margin(μV) | 8.45(6.8,10.2) | 9.45(8.2,11.4) | 0.244 | 7.25(6.5,10.2) | 8.6(7.65,10.35) | 0.589 | 9.1(7.2,10.7) | 8.3(6.5,10.2) | 0.623 | 7.45(6.35,10.45) | 9.2(8.6,10) | 0.170 | |
| aEEG Bandwidth(μV) | 1.7(1.5,2) | 1.9(1.8,2.1) | 0.130 | 1.65(1.5,2.1) | 1.8(1.66,2) | 0.393 | 1.9(1.6,2) | 1.7(1.5,2) | 0.398 | 1.6(1.5,1.8) | 1.95(1.7,2.1) | 0.030 | |
| SEF-95(Hz) | 1.29(1.19,1.4) | 1.38(1.35,1.4) | 0.082 | 1.36(1.24,1.4) | 1.23(1.19,1.34) | 0.104 | 1.33(1.22,1.4) | 1.29(1.19,1.4) | 0.622 | 1.36(1.21,1.43) | 1.24(1.18,1.29) | 0.057 | |
| Total Power(μV) | 18.88(10.58,33.86) | 23.57(14.63,35.69) | 0.698 | 16.51(10.58,43.39) | 22.68(10.38,27.9) | 0.857 | 13.84(10.13,28.43) | 24.2(10.63,43.39) | 0.470 | 10.68(9.33,26.47) | 27.9(21.16,43.39) | 0.022 | |
| δ RBP(%) | 49.75(41.61,65.05) | 39.715(29.78,48.56) | 0.024* | 51.05(41.61,66.5) | 49.75(38.29,61.95) | 0.625 | 49.47(33.66,51.63) | 53.04(42.91,67.91) | 0.184 | 49.75(42.66,61.95) | 57.11(39.87,67.91) | 0.732 | |
| θ RBP(%) | 16.545(12.94,21.77) | 15.72(14.95,17.62) | 0.724 | 16.55(12.94,21.77) | 16.69(13.31,21.06) | 0.857 | 15.84(12.07,21.93) | 17.04(13.44,21.77) | 0.686 | 16.55(13.19,22.19) | 16.69(12.07,20.18) | 0.772 | |
| α RBP(%) | 7.995(5.26,14.93) | 13.865(10.14,14.9) | 0.066 | 7.09(4.91,11.94) | 12.68(6.78,21.14) | 0.143 | 13.02(10.5,27.48) | 7.53(4.43,14.37) | 0.073 | 7.66(4.84,14.65) | 9.64(6.65,20.46) | 0.414 | |
| β RBP(%) | 9.765(6.82,15.27) | 17.44(14.79,26.7) | 0.006* | 11.9(8.79,16.62) | 8.575(5.865,12.57) | 0.165 | 10.83(6.82,14.89) | 9.47(6.11,15.65) | 0.644 | 10.68(8.09,18.48) | 8.17(6.11,13.87) | 0.114 | |
| δ ABP(μV) | 10.095(5.6,13.72) | 7.015(3.63,13.56) | 0.458 | 11.5(5.7,20.86) | 8.46(5.39,12.73) | 0.520 | 6.61(4.74,11.73) | 11.26(5.7,17.38) | 0.272 | 6.48(4.82,12.18) | 11.76(9.73,20.86) | 0.054 | |
| θ ABP(μV) | 2.89(1.47,6.32) | 3.675(2.36,5.61) | 0.778 | 2.39(1.35,6.45) | 3.48(1.74,6.14) | 0.857 | 2.83(1.35,7.68) | 2.95(1.58,6.32) | 0.908 | 1.95(1.34,6.39) | 3.83(2.83,6.01) | 0.257 | |
| α ABP(μV) | 1.755(0.67,4.95) | 3.17(1.56,8.07) | 0.148 | 1.16(0.55,4.38) | 2.19(1.2,5.63) | 0.396 | 2.38(1.4,6.31) | 1.45(0.55,4.38) | 0.355 | 1.17(0.5,4.67) | 2.61(1.99,6.31) | 0.133 | |
| β ABP(μV) | 1.75(1.04,3.05) | 4.23(2.63,5.97) | 0.008* | 2.15(1.04,3.05) | 1.33(1.04,2.77) | 0.410 | 2.48(1.43,3.05) | 1.58(1.03,3.05) | 0.402 | 1.56(1.01,2.82) | 2.24(1.22,3.1) | 0.292 |
*
p < 0.05.
aEEG, amplitude-integrated electroencephalogram; RBP, relative band power; ABP, absolute band power; SEF-95, spectral edge frequency 95%.