Fig 1.
Some participants were excluded for multiple criteria.
Table 1.
Descriptive statistics for study participants.
Table 2.
Correlation coefficients for sleep quality, covariates, and personality traits.
Table 3.
Linear regression analysis investigating the association between personality traits and sleep quality, as measured by PSQI global score.
Table 4.
Logistic regression models predicting poor sleep quality based on personality characteristics.
Table 5.
Discriminant function analysis (DFA) by the stepwise method for the separation between good sleepers and poor sleepers.