Table 2. Relationship between component score of PSQI-K and AUDIT-KR.

Values are presented as mean±standard deviation.

PSQI-K, Pittsburgh Sleep Quality Index-Korean version; AUDIT-KR, Alcohol Use Disorder Identification Test-Korean Revised version.

^*By Mann-Whitney test. ^†Hours asleep/hours in bed×100. ^‡Nighttime awakenings due to snoring.