Objectives: : Physiological and psychological changes, including sleep disturbance and mood changes, frequently occur in post-menopausal women. We explored associations between sleep duration/quality and arterial stiffness, as well as the moderating role of depressive symptoms, in post-menopausal women. Study design: : This cross-sectional study utilized data obtained from 1687 post-menopausal women in the Cardiovascular and Metabolic Diseases Etiology Research Center cohort study. Main outcome measures: : Self-reported sleep was classified into short (<6 h/day), normal, and long (≥ 8 h/day) sleep durations. Poor sleep quality was operationally defined using the fatigue-related Berlin questionnaire. Depressive symptoms were assessed using the Beck Depression Index-II (BDI-II). Arterial stiffness was evaluated using the augmentation index (AI) and the HEM-9000AI system. The associations between sleep and AI were examined using generalized linear models, followed by a path model to investigate whether depressive symptoms act as an effect modifier. Results: : AI (%) values for participants with poor sleep quality were higher than those for participants with normal sleep quality (β=1.53, standard error [SE]=0.59, p = 0.009). Although overall sleep duration was not associated with AI values, the severity of depressive symptoms altered the association (p-for interaction=0.021). The magnitude of the positive association between sleep duration and AI was amplified in participants with higher BDI-II scores. In participants with severe depressive symptoms (BDI-II ≥20), a long sleep duration was significantly associated with elevated AI values (β=4.80, SE=1.56, p = 0.003) compared with those with a normal sleep duration. Conclusion: : In post-menopausal women, poor sleep quality appears to result in an increase in arterial stiffness, and depressive symptoms seem to modify the association between sleep duration and AI. This modifying role for mental health should be considered in the association between sleep and cardiovascular health in post-menopausal women.
|Number of pages||8|
|Publication status||Published - 2021 Jul|
Bibliographical noteFunding Information:
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science and ICT ( 2020R1C1C1003502 ) and a faculty research grant of Yonsei University College of Medicine for 2019 (6-2019-0114).
© 2021 Elsevier B.V.
All Science Journal Classification (ASJC) codes
- Biochemistry, Genetics and Molecular Biology(all)
- Obstetrics and Gynaecology