Arif Anwer Surani, Sohaib Zahid, Asif Surani, Salman Ali, Muhammad Mubeen, Reem Halim Khan.
Sleep quality among medical students of Karachi, Pakistan.
J Pak Med Assoc Jan ;65(4):380-2.

Objective: To characterise sleep quality and assess degree of daytime sleepiness among medical students of Karachi. Methods: The cross-sectional study was conducted between August and December 2013 and subjects were recruited from five haphazardly selected medical colleges in Karachi. A convenience sample of medical students underwent two validated self-administered questionnaires i.e. Pittsburgh Sleep Quality Index and Epworth Sleepiness Scale. SPSS 17 was used for statistical analysis. Results: Of the 650 students approached, 504(77.5%) subjects completely filled out the questionnaires. Of them, 300(59.5%) were females and 204(40.5%) were males. Overall mean age was 20±1.4 years. Of them, 199(39.5%) were classified as "Poor Sleepers". Poor sleep quality was associated with female gender (p <0.05), excessive daytime sleepiness (p <0.05), total hours slept (p <0.001) and sleep disturbances (p <0.001). Bed-timing analysis showed 365(72%) students went to bed after midnight. Conclusion: Sleep quality among Pakistani medical students was significantly poor. Efforts must be directed towards proper sleep hygiene education.

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