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Search strategy

YW Yuqi Wu
YF Yijie Fu
YH Yuanqiong He
XG Xinru Gong
HF Hongli Fan
ZH Zhoutong Han
TZ TianMin Zhu
HL Hui Li
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Electronic searches will be performed on PubMed, Web of Science, Embase, Cochrane, Ovid, Scopus, the Chinese National Knowledge Infrastructure, the Wanfang Database, the Chinese Biomedical Literature Database and the Chinese Scientific Journal Database. The relevant literature on the prevalence and influencing factors of sleep disorders in patients with CRS will be collected from the establishment to September 2023. We will search using combinations of subject terms and free words, including combinations of rhinosinusitis, chronic rhinosinusitis, CRSwNP, CRSsNP, prevalence, sleep disorders, dyssomnias, sleep deprivation, poor quality sleep, Epworth score, sleep study, sleep apnoea, sleep hypopnoea, insomnia, sleepiness, somnolence, rapid eye movement (REM) sleep, non-REM sleep, epidemiology, incidence, influencing factor and risk factor*. The document search will be limited to relevant studies published in English and Chinese. In addition, we will also search the reference list of relevant studies and the grey literature to achieve the purpose of a comprehensive search. The search strategy is shown in online supplemental additional file 2.

bmjopen-2023-078430supp002.pdf

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