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Correlations between ISI-K, PSQI-K, and KESS scores, and PSG data (n=614)
*Correlation is significant at the 0.01 level (two-tailed).
ISI-K: Korean version of the Insomnia Severity Index, KESS: Korean version of the Epworth Sleepiness Scale, PSG: polysomnography, PSQI-K: Korean version of the Pittsburg Sleep Quality Index, SE: sleep efficiency, SOL: sleep onset latency, WASO: wake after sleep onset.
