Table 1.
Percent agreement and kappa (κ) values for tested terms and comparison to prior studies
| Terminology item | Choices | Agreement (%) | Kappa (κ), % (95% CI) | Gerber et al. (2008)13
|
Mani et al. (2012)14
|
|
|---|---|---|---|---|---|---|
| Kappa, κ (%) | Agreement (%) | Kappa, κ (%) | ||||
| Seizure | Yes, no | 93.3 | 91.1 (90.6–91.6) | NA | NA | NA |
| Main term 1 | G, L, BI, M | 91.3 | 89.3 (89.1–89.6) | −/49 | 96 | 87 |
| Main term 2 | PD, RDA, SW | 85.2 | 80.3 (79.4–81.2) | −39 | 98 | 92 |
| Plus (+) modifier | F, R, S, FR, FS, No + | 49.6 | 33.7 (32.4–35.1) | −/12 | NA | NA |
| Any “+” | Yes, no | 59.3 | 19.2 (17.5–20.9) | NA | 82 | 25 |
| +Fast activity (F) | Yes, no, not applicable | 71.9 | 65.5 (64.4–66.7) | NA | 83 | 54 |
| +Rhythmic activity (R) | Yes, no, not applicable | 76.5 | 67.4 (66.5–68.3) | NA | 88 | 62 |
| +Spike or sharply contoured (S) | Yes, no, not applicable | 83.9 | 81.8 (81.2–82.5) | NA | 82 | 16 |
| Sharpness | Spiky, sharp, sharply contoured, blunt, not applicable | 91.5 | 84.8 (84.3–85.2) | NA | NA | NA |
| Absolute amplitude | Very low, low, medium, high | 96.5 | 94.0 (93.8–94.2) | NA | 93 (jointly assessed) | NA |
| Relative amplitude | <2, >2, not applicable | 71.8 | 66.4 (65.3–67.4) | NA | ||
| Frequency | <1, 1–2, 2–3, 3–4, >4 Hz | 97.8 | 95.1 (94.9–95.2) | −/34 | 80 | NA |
| Phases | 1, 2, 3, >3, not applicable | 89.9 | 83.0 (82.6–83.4) | NA | NA | NA |
| Evolution | Static, evolving, fluctuating | 65.6 | 21.0 (19.7–22.2) | NA | NA | NA |
| Triphasic morphology | Yes, no, not applicable | 72.9 | 58.2 (56.1–60.2) | NA | NA | NA |