Adult Lifelines participants were asked several questions regarding sleeping patterns, problems, and habits (section: lifestyle & environment).
Note that sleep (for adult participants) was also assessed within Lifelines using the Munich ChronoType Questionnaire, the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale, and participants were asked whether they suffered from insomnia. For children, sleep is assessed with general sleep questions.
Also note that certain subcohorts of participants answered more detailed questions on their sleeping behavior in the additional questionnaires on ADHD and blue light exposure.
Participants in the general cohort were asked the following questions:
Questions English | Questions Dutch | Code | Variable | Assessment | Age |
on average how many hours do you sleep per full day (24 hours)? | hoeveel tijd (xx uren) slaapt u gemiddeld per etmaal? | sleeping_timespending_adu_q_1 | TIJDSB4A | 1A | 18+ |
on average how many minutes do you sleep per full day (24 hours)? | hoeveel tijd (xx minuten) slaapt u gemiddeld per etmaal? | sleeping_timespending_adu_q_1_a | TIJDSB4B | 1A | 18+ |
in the morning (from getting up until noon) / what is the chance that you will fall asleep? (in the past month) | s morgens (vanaf opstaan tot 12:00 uur) / hoe groot is de kans dat u in slaap valt? (betrekking op de afgelopen maand) | sleep_morning_adu_q_1 | SLEEP12A | 1C | 18+ |
in the afternoon (from noon until 18:00h) / what is the chance that you will fall asleep? (in the past month) | s middags (van 12:00 tot 18:00 uur) / hoe groot is de kans dat u in slaap valt? (betrekking op de afgelopen maand) | sleep_afternoon_adu_q_1 | SLEEP12B | 1C | 18+ |
in the evening (from 18:00h until going to bed) / what is the chance that you will fall asleep? (in the past month) | s avonds (van 18:00 uur tot slapen gaan) / hoe groot is de kans dat u in slaap valt? (betrekking op de afgelopen maand) | sleep_evening_adu_q_1 | SLEEP12C | 1C | 18+ |
falling asleep / I have trouble with: | In slaap komen / Ik heb problemen met: | sleepproblems_evening_adu_q_1 | SLEEP13A | ADHQ | 18+ |
waking up at night / I have trouble with: | 's Nachts wakker worden / Ik heb problemen met: | sleepproblems_night_adu_q_1 | SLEEP13B | ADHQ | 18+ |
waking up tired / I have trouble with: | Onuitgerust wakker worden / Ik heb problemen met: | sleepproblems_morning_adu_q_2 | SLEEP13C | ADHQ | 18+ |