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Changes in Sleep Duration and Insomnia Over the Study Period
(A) Objective changes in sleep duration over the study period. (B) Subjective changes in insomnia severity over the study period. Sleep Duration was measured by a 5-day patch-holter with an integrated accelerometer at pre-, post-, and 3-month follow-up. The insomnia severity index (ISI) questionnaire was used for self-rated assessments. Values represent means, and vertical lines indicate 95% CI. Abbreviation as in Figure 2.
