Data
182,214 items of data are available, covering 182,214 participants, encoded using Data-Coding
2554.
Notes
Sleep online question: "During the past month, how often have you had trouble sleeping because: you cannot breathe comfortably?"
The question in this field was taken from the Pittsburgh Sleep Quality Index.
The Pittsburgh Sleep Quality Index: A New Instrument for Psychiatric Practice and Research (Authors Daniel J. Buysse, Charles F. Reynolds III, Timothy H. Monk, Susan R. Berman, and David J Kupfer, © University of Pittsburgh 1989 and 2010. All Rights Reserved)