BACKGROUND Sleep disturbances are common among adult populations and can have a significant effect on daytime activities. The aim of this study is to determine the prevalence of sleep problems and subjective sleep quality in the adult population of Tehran, Iran. METHODS From an urban community of Tehran, a random sample of 3400 adult men and women were selected by a cross-sectional design. Us...

OBJECTIVES To test whether individual differences in gratitude are related to sleep after controlling for neuroticism and other traits. To test whether pre-sleep cognitions are the mechanism underlying this relationship. METHOD A cross-sectional questionnaire study was conducted with a large (186 males, 215 females) community sample (ages=18-68 years, mean=24.89, S.D.=9.02), including 161 peo...

Objective: The aim of the present research was to evaluate the psychological well-being and quality of sleep in addicts under methadone treatment for at least 6 months. Methods: A total of 40 individuals were selected through purposeful sampling method among the referring addicts to 2 addiction centers in eastern Tehran. Participants took the Ryff scale of psychological well-being (RSPWB) an...

OBJECTIVES To examine the relationship between glycemic control in Type 2 diabetics and sleep duration and quality of sleep. METHODS There were 220 adult non-insulin dependent diabetics (Type 2) with 69 males and 151 females. The mean age was 59.4 +/- 9.2 yrs (Mean +/- SD), mean BMI 35.6 +/- 9.9 kg/m2, and mean HbA1c 8.2 +/- 2.1%. Detailed questions about history and management of diabetes, h...

Abstract The aim was to assess sleep quality in pregnant women, characterize patterns each trimester and establish independent risk factors of poor during gestation. A cross-sectional survey conducted. questionnaire included questions regarding sociodemographic data, information on the current pregnancy, Pittsburgh Sleep Quality Index. 7202 respondents fulfilled completely only those were inclu...

Introduction: Decrease in sleep quality is an age-related problem which appears in different features such as difficulty in sleeping, over sleeping and unusual behaviors during sleep. Regarding the importance of sleep quality among older adults and also its effects on their quality of life and physical and mental status, the study was conducted to determine the status and quality of sleep in ol...

BACKGROUND The Pittsburgh Sleep Quality Index is a standardized self-administered questionnaire for the assessment of subjective sleep quality. It has been translated into several languages and is widely used in clinical research studies. OBJECTIVES To assess the reliability and validity of the Pittsburgh Sleep Quality Index Hebrew translation in a sleep clinic sample and in comparison with t...