Sleep Onset Latency in Students Living in Dormitories at Tehran University of Medical Sciences: A Survival Analysis



Mansouri A¹ ; Mokhayeri Y² ; Tavakol Z^{3, 4} Show Affiliations
Source: Research Journal of Pharmaceutical# Biological and Chemical Sciences Published:2016

Abstract

Difficulty Initiating Sleep is a prevalent disorder in university students. In this study, we aimed to estimate the time of going to bed to get sleep and to identify its determinants by survival analysis. This study is based on a cross-sectional study that was been performed on 277 students who lived in dormitories of Tehran University of Medical Sciences (TUMS). We used Pittsburgh Sleep Quality Index(PSQI), General Health Questionnaire(GHQ) and a demographic questionnaire for data collection. Independent t-test, One-way ANOVA and survival analysis were used for analyzing the data. Mean ± SD of time of going to bed to get sleep was 23.61±16.31 minutes. Range of this time was between 0 to 90 minutes. This time was related to sleep quality, mental health and tea drinking in univariate analysis. Cox regression model showed sleep quality, working alongside academic affairs, financial source type for living expences and effect modification between two last variables were significant determinants of sleep latency. All determinants of sleep latency in our study are changeable factors. It means educationonal programs can play a very important role in controlling of these factors and improvement of sleep status of dormitory students.