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. 2019 Dec 19;12:369–374. doi: 10.2147/RMHP.S234552

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© 2019 Song et al.

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Study design. There were 19,108 individuals who underwent routine check-ups at our center willing to fill the PSQI questionnaires. After exclusion and grouping, subjects with euthyrid function (n=12,622) and subclinical hypothyroidism (n=2224) were included in this study.