Related Variables
| nodded |
Berlin Questionnaire: Have you ever nodded off or fallen asleep while driving a vehicle?
Item from the Berlin Questionnaire. Netzer et al, 1999 (PubMed ID: 10507956) |
Sleep Questionnaires/Berlin Questionnaire | |
| nodoften |
Berlin Questionnaire: Have you ever nodded off or fallen asleep while driving a vehicle? If yes, how often does it occur
Item from the Berlin Questionnaire. Netzer et al, 1999 (PubMed ID: 10507956) |
Sleep Questionnaires/Berlin Questionnaire |