|
Variables
|
EEG timing
|
True positive
|
False positive
|
True negative
|
False negative
|
Sensitivity (95% CI)
|
Specificity (95% CI)
|
PPV (95% CI)
|
NPV (95% CI)
|
Accuracy (95% CI)
|
|---|
|
Highly malignant pattern
|
< 72 h
|
144
|
0
|
110
|
99
|
59.3 (52.8–65.5)
|
100.0 (96.7–100.0)
|
100
|
52.6 (48.8–56.4)
|
72.0 (67.0–76.6)
|
|
Between 72 h and 7 days
|
55
|
0
|
38
|
43
|
56.1 (45.7–66.1)
|
100.0 (90.8–100.0)
|
100
|
46.9 (41.4–52.5)
|
68.4 (59.9–76.1)
|
|
< 7 days
|
199
|
0
|
148
|
142
|
58.4 (52.9–63.6)
|
100.0 (97.5–100.0)
|
100
|
51.0 (47.9–54.2)
|
71.0 (66.7–75.0)
|
|
Highly malignant or malignant patterns
|
< 72 h
|
208
|
24
|
86
|
35
|
85.6 (80.5–89.8)
|
78.2 (69.3–85.5)
|
89.7 (85.8–92.5)
|
71.1 (64.0–77.2)
|
83.3 (79.0–87.0)
|
|
Between 72 h and 7 days
|
81
|
17
|
28
|
10
|
82.7 (73.7–89.6)
|
73.7 (56.9–86.6)
|
89.0 (82.5–93.3)
|
62.2 (50.7–72.5)
|
80.2 (72.5–86.5)
|
|
< 7 days
|
289
|
34
|
114
|
52
|
84.8 (80.5–88.4)
|
77.0 (69.4–83.5)
|
89.5 (86.3–92.0)
|
68.7 (62.7–74.1)
|
82.4 (78.7–85.7)
|
|
Highly malignant or malignant patterns with delta or undetermined frequency
|
< 72 h
|
171
|
2
|
108
|
72
|
70.4 (64.2–76.0)
|
98.2 (93.6–99.8)
|
98.8 (95.6–99.7)
|
60.0 (55.2–64.6)
|
79.0 (74.4–83.2)
|
|
Between 72 h and 7 days
|
65
|
1
|
37
|
33
|
66.3 (56.1–75.6)
|
97.4 (86.2–99.9)
|
98.5 (90.3–99.8)
|
52.9 (45.8–59.8)
|
75.7 (67.9–82.0)
|
|
< 7 days
|
236
|
3
|
145
|
105
|
69.2 (64.0–74.1)
|
98.0 (94.2–99.6)
|
98.7 (96.2–99.6)
|
58.0 (54.0–61.9)
|
77.9 (74.0–81.5)
|
- CI, confidence interval; EEG, electroencephalography; NPV, negative predictive value; PPV, positive predictive value
