low and high p-tau/Aβ42 ratio) did not show a clear trend in clinical agreement or ICCs, but the high p-tau/Aβ42 group did have wider 95% limits of agreement from Bland-Altman plots for all four sleep parameters in comparing scEEG vs. actigraphy.
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Comparison of single-channel EEG, actigraphy, and sleep diary in cognitively normal and mildly impaired older adults.
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