Table 1. Distribution of Excessive Daytime Sleepiness among first to fourth year.

Year in the medical school	Total number of students selected for the study	Excessive Daytime Sleepiness n (%)
Fourth	57	20 (35.09)
Third	55	16 (29.09)
Second	54	18 (33.33)
First	50	13 (26.00)
Total	216	67 (31.02)