Variable Details:

Source:

Landis, Carol, Christine Frey, and Martha Lentz (2003), "Self-Reported Sleep Quality and Fatigue Correlates with Acigraphy in Midlife Women with Fibromyalgia", Nursing Research, 52, 140-147.
[Endnote]


Variable



Definition:

  • Total minutes of activity scored as wake between sleep onset and sleep offset.


Item(s):



Citations:

  • Webster, J., D. Kripke, and S. Messin (1982), "An activity based sleep monitory system for ambulatory use", Sleep, 5, 389-399. [Endnote]