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Revista Ciencias de la Salud
versión impresa ISSN 1692-7273versión On-line ISSN 2145-4507
Resumen
PEREZ-OLMOS, Isabel; TALERO-GUTIERREZ, Claudia; GONZALEZ-REYES, Rodrigo y MORENO, Carlos B.. Medical Students Circadian Sleep Rhythms and Academic Performance. Rev. Cienc. Salud [online]. 2006, vol.4, n.2, pp.147-157. ISSN 1692-7273.
Objective: to evaluate, with a preliminary study, the distribution of circadian rhythms, sleep schedule patterns and their relationship with academic performance on medical students. Methodology: in this descriptive study, a 10 item original questionnaire about sleep rhythms and academic performance was applied to medical students from different semesters. Week (class time) and weekend schedules, preferences, daytime somnolence and academic performance were asked. Three chronotypes (morningness, intermediate and eveningness) were defined among waking-sleeping preference, difficulty to sleep early, exam preparation preference hour and real sleep schedule. The sleep hour deficit per week night was also calculated. Results: Of the 318 medical students that answered the questionnaire, 62.6% corresponded to intermediate chronotypes, 8.8% to evening-type and 28.7% to morning-type. Significant difference was found among the two chronotype tails (p=0.000, Chi-square 31.13). No correlation was found between academic performance and age, sex, chronotype, week sleep deficit and sleep hours in week and weekends. A 71.1% of the students slept 6 or fewer hours during class time and 78% had a sleep deficit (more frequent in the evening chronotype). Conclusions: No relation was found between sleep chronotype and academic performance. Students tend to morningness. Few studies have been made on equatorial zones or without seasons.
Palabras clave : sleep; circadian rhythm; chronobiology; chronotype; academic performance; medical students; medical education; Bogotá; Colombia.