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Participants were asked whether they suffered from insomnia.
Other sleeping habits of participants were assessed with several general questions and using the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale.
Questions English | Questions Dutch | Variable | Assessment | Age |
What is the highest level of education you have finished? | Wat is uw hoogst voltooide opleiding? | EDUCATION | 1A 2A 2B | 18+ |
Specification other / What is the highest level of education you have finished? | Specificatie anders / Wat is uw hoogst voltooide opleiding? | EDUCOTHER | 1A 2A 2B | 18+ |