A novel voice interactive sleep log: concurrent validity with actigraphy and sleep diaries

Area of Science:

• Sleep science
• Medical informatics
• Patient-reported outcomes

Background:

• Insomnia symptoms are prevalent in breast cancer survivors.
• Accurate sleep data collection is crucial for managing insomnia.
• Existing methods like actigraphy and paper logs have limitations.

Purpose of the Study:

• To validate a novel voice interactive sleep log.
• To compare its performance against actigraphy and traditional paper logs.
• To assess patient acceptability of the voice interactive system.

Main Methods:

• Preliminary validation study involving 17 breast cancer survivors with insomnia symptoms.
• Comparison of actigraphy, paper and pencil logs, and the voice interactive sleep log.
• Statistical analysis using correlation coefficients and Bland Altman plots for validity; acceptability ratings for qualitative data.

Main Results:

• The voice interactive sleep log demonstrated comparable mean values and variable validity coefficients to paper logs versus actigraphy for most sleep variables.
• Fair concurrent validity was observed between the voice interactive system and actigraphy for wake after sleep onset.
• The voice interactive log was found to reduce patient burden, automate calculations, and provide daily feedback.

Conclusions:

• The voice interactive sleep log is a promising tool for sleep data collection in this population.
• It offers significant advantages over traditional methods, including improved efficiency and patient engagement.
• Further research is warranted to explore its broader clinical applications.