Why the study?
To keep in step with international methodological trends and localize strategies for control selection in observational studies using big data in healthcare.
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Urges Chinese epidemiologists to align with international control selection trends in big data studies; leaves open optimal localization strategies.
Control selection is the core of epidemiological study. With the increase of studies based on big data in healthcare, the strategies for control selection were continued to enrich and improve. The methodologies to estimate the potential impact of each control selection strategies were also proposed. To facilitate the utilization of big data in healthcare, the Chinese epidemiologist should keep in step with the international trend in the field of control selection, and should find ways to localize the strategies for control selection.
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Wang et al. (2021) studied this question.
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