Data Collection Tools
A 10-question questionnaire including sociodemographic characteristics and Pitsburgh sleep quality scale, Berlin questionnaire and insomnia severity scale were used to collect data.
Pitsburgh sleep quality scale: Scale was developed from Buysse et al. [3] and adapted to Turkish by Ağargün et al. [4]. The scale is a self-report scale of 19 items that evaluates sleep quality and impairment in the past month. It consists of 24 questions, 19 questions self-report, 5 questions are questions to be answered by spouse or roommate. The 18 questions of the scale consist of 7 components. Each component is rated at 0-3 points. The total score of the 7 components gives the total score of the scale. The total score ranges from 0 to 21. If the total score is greater than 5, it indicates “poor sleep quality.
The Berlin Questionnaire: The Berlin Questionnaire is a scale consisting of three categories that measure the risk of sleep apnea. It consists of a 10-question questionnaire including information on the patient’s body mass, snoring characteristics, sleep status and blood pressure. Each category is evaluated in its own way, and if 2 or more categories are positive, the risk of obstructive sleep apnea syndrome (OSAS) is considered high according to the Berlin Questionnaire [5,6].
Insomnia Severity Scale: It has been developed to evaluate the severity of insomnia and has a high reliability and reliability. Scale items consisting of seven questions are scored between 0-4. The scores that can be taken from the scale vary between 0-28 [7].