Table 2.
Overall and stage-specific values of Cohen’s κ for the different comparisons.
| Parameter | Measures | Comparison | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| INN vs BER | INN vs AUTO | BER vs AUTO | CONS vs AUTO | MAN vs AUTO | ||||||
| κ | µ ± σ | 0.66 ± 0.13 | 0.68 ± 0.14 | 0.55 ± 0.15 | 0.73 ± 0.14 | 0.61 ± 0.14 | ||||
| m [5th–95th] | 0.67 [0.43–0.83] | 0.70 [0.41–0.84] | 0.56 [0.30–0.77] | 0.76 [0.47–0.90] | 0.62 [0.36–0.79] | |||||
| κW | µ ± σ | 0.78 ± 0.14 | 0.74 ± 0.17 | 0.70 ± 0.19 | 0.80 ± 0.17 | 0.72 ± 0.17 | ||||
| m [5th–95th] | 0.81 [0.48–0.94] | 0.78 [0.38–0.92] | 0.75 [0.31–0.92] | 0.86 [0.43–0.96] | 0.76 [0.39–0.91] | |||||
| κN1 | µ ± σ | 0.40 ± 0.16 | 0.30 ± 0.16 | 0.22 ± 0.14 | 0.39 ± 0.20 | 0.25 ± 0.14 | ||||
| m [5th–95th] | 0.40 [0.13–0.66] | 0.30 [0.04–0.57] | 0.21 [0.02–0.47] | 0.40 [0.05–0.70] | 0.24 [0.04–0.48] | |||||
| κN2 | µ ± σ | 0.62 ± 0.16 | 0.71 ± 0.14 | 0.53 ± 0.17 | 0.74 ± 0.15 | 0.62 ± 0.14 | ||||
| m [5th–95th] | 0.65 [0.34–0.84] | 0.73 [0.46–0.87] | 0.55 [0.24–0.79] | 0.77 [0.46–0.92] | 0.63 [0.37–0.81] | |||||
| κN3 | µ ± σ | 0.66 ± 0.28 | 0.49 ± 0.33 | 0.40 ± 0.31 | 0.53 ± 0.34 | 0.42 ± 0.32 | ||||
| m [5th–95th] | 0.77 [0.00–0.93] | 0.57 [0.00–0.91] | 0.41 [0.00–0.88] | 0.64 [0.00–0.94] | 0.46 [0.00–0.87] | |||||
| κREM | µ ± σ | 0.75 ± 0.21 | 0.79 ± 0.21 | 0.74 ± 0.23 | 0.86 ± 0.21 | 0.76 ± 0.20 | ||||
| m [5th–95th] | 0.82 [0.26–0.96] | 0.86 [0.30–0.96] | 0.81 [0.15–0.95] | 0.94 [0.36–0.99] | 0.82 [0.30–0.95] | |||||
The values are shown as mean (µ) ± 1 standard deviation (σ), median (m), and 5th– 95th percentiles across the participants. INN vs BER: comparison of manual hypnograms scored in Innsbruck and Berlin; INN vs AUTO: comparison of manual hypnograms scored in Innsbruck to the automatic ones; BER vs AUTO: comparison of manual hypnograms scored in Berlin to the automatic ones; CONS vs AUTO: comparison of the epochs where manual scorers from Innsbruck and Berlin were in consensus to the respective epochs automatically scored; MAN vs AUTO: comparison of both manual hypnograms to the automatic one (in case of disagreement between manual scorers, an epoch was equally weighted between the two manually scored stages). AUTO = automatic algorithm, BER = Berlin, CONS = consensus, INN = Innsbruck, MAN = manual, N1 = non-REM stage 1 sleep, N2 = non-REM stage 2 sleep, N3 = non-REM stage 3 sleep, REM = rapid eye movement, W = wakefulness.