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Article analysis:

The article is generally trustworthy and reliable, as it is based on a study conducted by researchers from Tianjin Medical University General Hospital, which is a reputable institution with a good reputation in medical research and practice. The study was also approved by the Clinical Research Ethics Committee of Tianjin Medical University General Hospital, indicating that ethical considerations were taken into account during the research process. Furthermore, the article provides detailed information about the methods used in the study, such as data collection methods, sample size, statistical analysis techniques, etc., which adds to its credibility and reliability.

However, there are some potential biases that should be noted when assessing this article's trustworthiness and reliability. Firstly, since this is a retrospective study based on data collected from previous studies conducted at Tianjin Medical University General Hospital, there may be some selection bias due to the fact that only patients who attended CPAP titrations during overnight polysomnogram were included in the study sample. Secondly, since this is an observational study rather than an experimental one, it may not be able to provide definitive conclusions about cause-and-effect relationships between variables due to potential confounding factors that cannot be controlled or accounted for in an observational setting. Finally, since this is a single-center study conducted at one hospital only, its results may not be generalizable to other populations or settings outside of China due to differences in patient characteristics or healthcare systems across countries or regions