From: Sleepiness, sleep deprivation, quality of life, mental symptoms and perception of academic environment in medical students
SDI
Adjusted data
OR (95% CI)
P
Epworth > 10
Q1 (≤ 2 h)
Ref (1.0)
Q2 + Q3 (3 and 4 h)
1.56 (1.25 to 2.04)
< 0.001
Q4 (≥ 4 h)
2.23 (1.62 to 3.05)