TABLE 2.
Subject | Architecture 1, 3/200 |
Architecture 2, 5/25 |
Architecture 3, BiLSTM |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AUC | Se | TIW/FAR | p | IoC | AUC | Se | TIW/FAR | p | IoC | AUC | Se | TIW/FAR | p | IoC | |
E02 | .83 | 70 | 20.7/5.0 | .001a | 50.3 (21.3) | .72 | 70 | 41.2/9.9 | .045a | 35.0 (35.0) | .74 | 70 | 39.1/9.4 | .033a | 34.9 (34.7) |
E04 | .76 | 67 | 17.5/4.2 | .008a | 51.3 (17.1) | .65 | 67 | 35.2/8.4 | .095 | n.s. | .59 | 67 | 48.1/11.5 | .258 | n.s. |
E06 | .71 | 75 | 24.7/6.0 | .040a | 52.8 (18.7) | .64 | 75 | 58.3/14.0 | .393 | n.s. | .78 | 75 | 25.1/6.0 | .041a | 54.3 (21.0) |
E09 | .71 | 73 | 29.9/7.1 | .003a | 42.7 (18.2) | .59 | 73 | 44.4/10.7 | .039a | 30.2 (21.2) | .64 | 73 | 42.2/10.1 | .027a | 34.4 (20.1) |
S01 | .50 | 64 | 65.7/15.8 | .614 | n.s. | .81 | 73 | 10.9/2.6 | <.001a | 60.7 (15.0) | .79 | 73 | 13.6/3.3 | <.001a | 61.2 (13.9) |
S02 | .37 | 40 | 41.0/9.8 | .633 | n.s. | .75 | 60 | 27.2/6.5 | .104 | n.s. | .74 | 80 | 36.3/8.7 | .048a | 50.9 (25.0) |
Mean (SD) | .65 (.17)b | 71.3 (3.5)c | 23.2 (5.4)/5.6 (1.3)c | – | – | .69 (.08)b | 72.0 (1.7)c | 32.2 (18.5)/7.7 (4.4)c | – | – | .74 (.08)b | 74.2 (3.7)c | 31.3 (11.8)/7.5 (2.8)c | – | – |
Abbreviations: AUC, area under the receiver operating characteristic curve; FAR, mean false alarm rate in hours/day; IoC, improvement over chance: mean (SD) improvement in percentage sensitivity of the forecast compared to 100 randomly generated AUCs after shuffling seizure times, at the same time in warning; n.s., nonsignificant; Se, percentage sensitivity; TIW, time in warning as a percentage of recording in a high-risk state.
p< .05.
Mean (SD) across all subjects.
Mean (SD) of significant forecasts.