Sleep quality (PSQI)

The Pittsburgh Sleep Quality Index was used to assess sleep quality of adult Lifelines participants (section: Lifestyle & environment).
Note that the first 3 variables from the official PSQI were omitted here, because the same information could be derived from the Munich Chronotype Questionnnaire (MCTQ) also included in assessment 1B.
Other sleep-related data were collected using the Epworth Sleepiness Scale, the Composite Score of Morningness and the Chronic Sleep Reduction Questionnaire (CSRQ only for children).
Several sum scores on sleep behaviours are available for use.
Note that the PSQI for children was also performed in the context of an additional questionnaire on screen use and sleep quality (BLUQ).

Questions English	Questions Dutch	Code	Variable	Assessment	Age
in the past month, on average how many hours of sleep did you get per night? (this number may differ from the number of hours you spent in bed.)	aan hoeveel uren slaap kwam u gemiddeld per nacht tijdens de afgelopen maand? (dit aantal kan verschillen van het aantal dat u in bed doorbracht)	psqi_hours_adu_q_04	sleep4	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you could not fall asleep within 30 minutes?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u niet in slaap kon vallen binnen 30 minuten?	psqi_fallingasleep_adu_q_05_a	sleep5a	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you woke up at night or early in the morning?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u 's nachts of in de vroege morgen wakker werd?	psqi_wakingup_adu_q_05_b	sleep5b	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you had to go to the toilet?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u naar het toilet moest gaan?	psqi_bathroom_adu_q_05_c	sleep5c	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you could not breathe easily?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u niet makkelijk kon ademhalen?	psqi_breathing_adu_q_05_d	sleep5d	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you coughed or snored loudly?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u luid hoestte of snurkte?	psqi_snoring_adu_q_05_e	sleep5e	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you were too cold?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u het te koud had?	psqi_toocold_adu_q_05_f	sleep5f	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you were too warm?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u het te warm had?	psqi_toowarm_adu_q_05_g	sleep5g	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you had nightmares?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u nachtmerries had?	psqi_nightmares_adu_q_05_h	sleep5h	1B 3B	18+
in the past month, how often did you have difficulty sleeping because you were in pain?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u pijn had?	psqi_pain_adu_q_05_i	sleep5i	1B 3B	18+
in the past month, how often did you have difficulty sleeping because of (an)other reason(s)?	hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u (een) andere reden(en) had?	psqi_otherproblem_adu_q_05_j	sleep5j	1B 3B	18+
if you have had difficulty sleeping in the past month because of another reason, what reason?	omschrijf reden: / hoe vaak had u tijdens de voorbije maand moeilijkheden met slapen omdat u (een) andere reden(en) had?	psqi_specification_adu_q_05_k	sleep5jtxt	1B 3B	18+
how would you rate your overall sleep quality during the past month?	hoe zou u uw globale slaapkwaliteit tijdens de afgelopen maand beoordelen?	psqi_quality_adu_q_06	sleep6	1B 3B	18+
in the past month, how often did you take medication (with or without a doctor's prescription) to help you sleep?	hoe vaak nam u gedurende de afgelopen maand medicijnen in (al dan niet voorgeschreven) als hulp bij het slapen?	psqi_medication_adu_q_07	sleep7	1B 3B	18+
in the past month, how often did you have difficulty staying awake during various activities, such as eating or participating in social activities?	hoe vaak had u het de voorbije maand moeilijk om wakker te blijven tijdens verschillende bezigheden, zoals eten of deelname aan sociale activiteiten?	psqi_stayawake_adu_q_08	sleep8	1B 3B	18+
to what extent did you have trouble carrying out your daily activities with enough enthusiasm in the past month?	in welke mate was het de afgelopen maand voor u een probleem om met voldoende enthousiasme uw dagelijkse activiteiten uit te voeren?	psqi_enthusiasm_adu_q_09	sleep9	1B 3B	18+
snored loudly / if you have a roommate or bed partner, ask him/her how often in the past month during your sleep you:	luid snurkte / indien u een kamergenoot of bedpartner heeft, vraag hem/haar hoe vaak u tijdens de afgelopen maand tijdens uw slaap:	psqi_bedpartner_adu_q_10_a	sleep10a	1B 3B	18+
had long pauses in breathing / if you have a roommate or bed partner, ask him/her how often in the past month during your sleep you:	lange adempauzes had / indien u een kamergenoot of bedpartner heeft, vraag hem/haar hoe vaak u tijdens de afgelopen maand tijdens uw slaap:	psqi_bedpartner_adu_q_10_b	sleep10b	1B 3B
had twitching or kicking legs / if you have a roommate or bed partner, ask him/her how often in the past month during your sleep you:	trekkende of schoppende benen had / indien u een kamergenoot of bedpartner heeft, vraag hem/haar hoe vaak u tijdens de afgelopen maand tijdens uw slaap:	psqi_bedpartner_adu_q_10_c	sleep10c	1B 3B	18+
had periods of confusion / if you have a roommate or bed partner, ask him/her how often in the past month during your sleep you:	periodes van verwardheid had / indien u een kamergenoot of bedpartner heeft, vraag hem/haar hoe vaak u tijdens de afgelopen maand tijdens uw slaap:	psqi_bedpartner_adu_q_10_d	sleep10d	1B 3B	18+
had another type of restlessness / if you have a roommate or bed partner, ask him/her how often in the past month during your sleep you:	een andere rusteloosheid had / indien u een kamergenoot of bedpartner heeft, vraag hem/haar hoe vaak u tijdens de afgelopen maand tijdens uw slaap:	psqi_bedpartner_adu_q_10_e	sleep10e	1B 3B	18+
description of other type of restlessness / if you have a roommate or bed partner, ask him/her how often in the past month during your sleep you:	omschrijving van andere rusteloosheid / indien u een kamergenoot of bedpartner heeft, vraag hem/haar hoe vaak u tijdens de afgelopen maand tijdens uw slaap:	psqi_bedpartner_adu_q_10_e1	sleep10etxt	1B	18+

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