Table 2.

Comparison between the two groups of the study population: “students in first or second medical year” and “students from the third to the fifth medical year”

Variable	Students in first or second medical year (n=207)	Students from the third to the fifth medical year (n=250)	P-value
Psychological distress (K6 score >13)	174 (84.1%)	220 (88%)	0.22
Excessive daytime sleepiness (ESS score ≥11)	83(40.1%)	83 (33.2%)	0.12
Poor sleep (PSQI score >5)	107 (51.7%)	159 (63.6%)	0.01

Note: Bold value is statistically significant.

Abbreviations: K6, Kessler Psychological Distress Scale; ESS, Epworth Sleepiness Scale; PSQI, Pittsburgh Sleep Quality Index.