Table 3 Questionnaires for parents

Pediatrics Sleep Habits Questionnaire (PSQ)[85]

22 items; three subscales; Answer options: Item 1 to 16: “yes“, “no”, “don’t know”; item 17 to 22: four options ranging from “does not apply” to “meets most of time”

Epworth Sleepiness Scale (ESS-E)[86, 87]

8 items; total score from 0–24; four answer options ranging from “would never doze” to “dozing high probability”

Children’s Sleep Habits Questionnaire (CSHQ)[88, 89]

33 items; eight subscales; three answer options ranging from “common” to “uncommon”

Subjective Strength and Weaknesses (SDQ)[90, 91]

25 items; five subscales; three answer options ranging from “does not apply” to “clearly applicable”

Inventory for recording the Quality of life in Children and Adolescents (ILK) version for parents[77]

11 items; nine thematic areas; five answer options ranging from “very good” to “very bad”