Quality of sleep among bedtime smartphone users

Background: Exposure to light from viewing devices at night disturbs the circadian rhythm, especially sleep. The study aimed to assess (a) extent to which smart phones are used by medical undergraduate students during bedtime and to find their quality of sleep (b) the association of quality of sleep...

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Main Authors: Bindu Krishnan, Rama Krishna Sanjeev, R G Latti
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2020-01-01
Series:International Journal of Preventive Medicine
Subjects:
Online Access:http://www.ijpvmjournal.net/article.asp?issn=2008-7802;year=2020;volume=11;issue=1;spage=114;epage=114;aulast=Krishnan
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author Bindu Krishnan
Rama Krishna Sanjeev
R G Latti
author_facet Bindu Krishnan
Rama Krishna Sanjeev
R G Latti
author_sort Bindu Krishnan
collection DOAJ
description Background: Exposure to light from viewing devices at night disturbs the circadian rhythm, especially sleep. The study aimed to assess (a) extent to which smart phones are used by medical undergraduate students during bedtime and to find their quality of sleep (b) the association of quality of sleep and cell phone variables. Methods: A cross sectional observational study was conducted among 450 medical undergraduate students. The participants completed Pittsburgh Sleep Quality Index (PSQI) questionnaire and a validated semi structured questionnaire consisting of demographic details and cell phone variables. Results: By dividing the subjects into three groups according to their usage (Group I <1 hour, Group II 1 to 2 hours, Group III >2 hours), Group III respondents had significant prolonged sleep latency, reduced sleep duration, sleep inefficiency and daytime sleep disturbances (P < 0.05). Lack of awareness about night shift mode, lying posture use while using phone during bedtime correlated with poor quality sleep (P < 0.05). Conclusions: Awareness about the negative impact of evening exposure to viewing devices on sleep and health should be emphasized.
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spelling doaj.art-a6a2460ee7924efb9e17730e74eeb1af2022-12-21T19:28:31ZengWolters Kluwer Medknow PublicationsInternational Journal of Preventive Medicine2008-78022008-82132020-01-0111111411410.4103/ijpvm.IJPVM_266_19Quality of sleep among bedtime smartphone usersBindu KrishnanRama Krishna SanjeevR G LattiBackground: Exposure to light from viewing devices at night disturbs the circadian rhythm, especially sleep. The study aimed to assess (a) extent to which smart phones are used by medical undergraduate students during bedtime and to find their quality of sleep (b) the association of quality of sleep and cell phone variables. Methods: A cross sectional observational study was conducted among 450 medical undergraduate students. The participants completed Pittsburgh Sleep Quality Index (PSQI) questionnaire and a validated semi structured questionnaire consisting of demographic details and cell phone variables. Results: By dividing the subjects into three groups according to their usage (Group I <1 hour, Group II 1 to 2 hours, Group III >2 hours), Group III respondents had significant prolonged sleep latency, reduced sleep duration, sleep inefficiency and daytime sleep disturbances (P < 0.05). Lack of awareness about night shift mode, lying posture use while using phone during bedtime correlated with poor quality sleep (P < 0.05). Conclusions: Awareness about the negative impact of evening exposure to viewing devices on sleep and health should be emphasized.http://www.ijpvmjournal.net/article.asp?issn=2008-7802;year=2020;volume=11;issue=1;spage=114;epage=114;aulast=Krishnanblue lightmedical studentspsqi scalesleep qualitysmartphones
spellingShingle Bindu Krishnan
Rama Krishna Sanjeev
R G Latti
Quality of sleep among bedtime smartphone users
International Journal of Preventive Medicine
blue light
medical students
psqi scale
sleep quality
smartphones
title Quality of sleep among bedtime smartphone users
title_full Quality of sleep among bedtime smartphone users
title_fullStr Quality of sleep among bedtime smartphone users
title_full_unstemmed Quality of sleep among bedtime smartphone users
title_short Quality of sleep among bedtime smartphone users
title_sort quality of sleep among bedtime smartphone users
topic blue light
medical students
psqi scale
sleep quality
smartphones
url http://www.ijpvmjournal.net/article.asp?issn=2008-7802;year=2020;volume=11;issue=1;spage=114;epage=114;aulast=Krishnan
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