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Salivary IL-1β concentrations in students based on their answers to the Athens Insomnia Scale items (A) ‘Sleep induction’, (B) ‘Overall quality of sleep’, and (C) ‘Sense of well-being during the day’; * p < 0.05. Percentages of participants in each category are represented below the x axis (n = 72). Abbreviations: interleukin 1 beta, lL-1β.
