Data
14,276 items of data are available, covering 14,276 participants, encoded using Data-Coding
2520.
Notes
Sleep online question: "How often have you nodded off or fallen asleep while driving a vehicle?"
Question was asked when Field 30569 was Yes
The question in this field was taken from the Berlin Questionnaire.
Netzer NC, Stoohs RA, Netzer CM, Clark K, Strohl KP. Using the Berlin Questionnaire to identify patients at risk for the sleep apnoea syndrome. Annals of Internal Medicine. 1999 Oct 5; 131(7):485-491