Fig. 1From: The RU_SATED as a measure of sleep health: cross-cultural adaptation and validation in Chinese healthcare studentsInter–item and item–total, convergent and divergent correlations between the RU_SATED-C scale, SQQ-C and PHQ-4-C (N = 911). Note: Spearman correlations; T1, Time 1; T2, Time 2; RU_SATED, Regularity, Satisfaction, Alertness, Timing, Efficiency, Duration; SQQ, Sleep Quality Questionnaire; DSS, Daytime Sleepiness Subscale; SDS, Sleep Difficulty Subscale; PHQ-4, Patient Health Questionnaire-4; GAD-2, Generalized Anxiety Disorder-2; PHQ-2, Patient Health Questionnaire-2Back to article page