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Mushayyad Hussain
Mahran Altaf
Arif Nadeem
Nauman Aziz
Faseh Waryam


Sleep quality, Sleep paralysis, Medical students, Gender differences


Background: Undergraduate medical students are exposed to huge academic loads, that’s why most of them report sleep issues including sleep paralysis and poor sleep quality.

Aim: To determine the levels of sleep quality and sleep paralysis and its association with different socio-demographic characteristics of undergraduate medical students

Methods: Analytical cross-sectional study was done on 2nd year medical students of a public sector medical college of Punjab, Pakistan in March-April 2023. A self-administered questionnaire was provided to the students containing questions about socio-educational data (age, gender and residence), index of Pittsburg sleep quality and self reported sleep paralysis.

Results: Out of 224 undergraduate medical students of 2nd year MBBS, majority were females (67%), median age of the students was 19+_2. Residence wise, 50.4% students were hostellites and 49.6% were day scholars. Sleep paralysis was present in 40.6% students. Overall, 84.4% students were having bad sleep quality. 88% of the females were bad sleepers. 87% of the hostellites were having bad sleep quality. Majority of the day scholars were having sleep paralysis.

Conclusion: Majority (84.4%) of the students were having poor sleep quality. A considerable percentage (40.6%) of students was suffering from sleep paralysis. Positive association was there between sleep paralysis and residence of students (p<.05) with majority of the day scholars having sleep paralysis. Also there was a positive association between sleep quality and gender (p<.05) with majority of the females having bad sleep quality

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1. Levin M. Narcolepsy (Gelineau's syndrome) and other varieties of morbid somnolence. Archives of Neurology & Psychiatry. 1929 Dec 1;22(6):1172-200.
2. Levin M. The pathogenesis of narcolepsy, with a consideration of sleep-paralysis and localized sleep. Journal of Neurology and Psychopathology. 1933 Jul;14(53):1.
3. Dahlitz M, Parkes JD. Sleep paralysis. The Lancet. 1993 Feb 13;341(8842):406-7.
4. Sharpless BA, Barber JP. Lifetime prevalence rates of sleep paralysis: a systematic review. Sleep medicine reviews. 2011 Oct 1;15(5):311-5.
5. Spanos NP, McNulty SA, DuBreuil SC, Pires M, Burgess MF. The frequency and correlates of sleep paralysis in a university sample. Journal of Research in Personality. 1995 Sep 1;29(3):285-305.
6. Schlarb AA, Friedrich A, Claßen M. Sleep problems in university students–an intervention. Neuropsychiatric disease and treatment. 2017 Jul 26:1989-2001.
7. Jahrami H, Dewald-Kaufmann J, Faris ME, AlAnsari AM, Taha M, AlAnsari N. Prevalence of sleep problems among medical students: a systematic review and meta-analysis. Journal of Public Health. 2020 Oct;28:605-22.
8. Corrêa CD, Oliveira FK, Pizzamiglio DS, Ortolan EV, Weber SA. Sleep quality in medical students: a comparison across the various phases of the medical course. Jornal Brasileiro de Pneumologia. 2017 Jul;43:285-9.
9. Rao WW, Li W, Qi H, Hong L, Chen C, Li CY, Ng CH, Ungvari GS, Xiang YT. Sleep quality in medical students: a comprehensive meta-analysis of observational studies. Sleep and Breathing. 2020 Sep;24:1151-65.
10. Buysse DJ, Reynolds III CF, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry research. 1989 May 1;28(2):193-213.
11. MAGALÍ CO, ULISES GS, Aveiro-Róbalo TR, DANIELA GT, Valladares-garrido MJ. Association between sleep quality and sleep paralysis in medical students from a private university in Paraguay. Age (years). 2020;19:17-28.
12. Penn NE, Kripke DF, Scharff J. Sleep paralysis among medical students. The Journal of psychology. 1981 Mar 1;107(2):247-52.
13. Muzammil MA, Syed AR, Farooq MH, Ahmed S, Qazi MH, Patel T, Khatri M, Zaman MU, Nadeem T, Tanveer F, Kumar U. Frequency and Factors of Sleep Paralysis Among Medical Students of Karachi. Cureus. 2023 Jul 11;15(7).
14. Duarte JM, Lisi GR, Carroll BT, Garro MF, Appiani FJ. The prevalence of sleep paralysis in medical students in Buenos Aires, Argentina. Journal of Neurosciences in Rural Practice. 2023 Apr;14(2):272.
15. Fukuda K, Ogilvie RD, Chilcott L, Vendittelli AM, Takeuchie T. The prevalence of sleep paralysis among Canadian and Japanese college students. Dreaming. 1998 Jun;8:59-66.
16. Surani AA, Zahid S, Surani A, Ali S, Mubeen M, Khan RH. Sleep quality among medical students of Karachi, Pakistan. J Pak Med Assoc. 2015 Apr 1;65(4):380-2.
17. James BO, Omoaregba JO, Igberase OO. Prevalence and correlates of poor sleep quality among medical students at a Nigerian university. Annals of Nigerian Medicine. 2011 Jan 1;5(1):1.
18. Ghoreishi A, Aghajani AH. Sleep quality in Zanjan university medical students. Tehran university medical journal TUMS publications. 2008 Mar 10;66(1):61-7.
19. Denis D. Relationships between sleep paralysis and sleep quality: current insights. Nature and science of sleep. 2018 Nov 2:355-67.
20. MAGALÍ CO, ULISES GS, Aveiro-Róbalo TR, DANIELA GT, Valladares-garrido MJ. Association between sleep quality and sleep paralysis in medical students from a private university in Paraguay. Age (years). 2020;19:17-28