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A retrospective cohort study design was used to identify mortality risk factors.
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Method: This was a retrospective cohort study using medical claims in Taiwan.
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Design: We performed a retrospective cohort analysis using population-based linked administrative data.
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Materials and methods: We performed a retrospective cohort study across 18 institutions.
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Methods: A retrospective cohort of adults with severe alcohol withdrawal were screened.
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Materials and methods: We conducted a retrospective cohort study using Medicare fee-for-service data.
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Methods: This retrospective cohort study evaluated influenza vaccine recipients within the Tricare population.
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Methods: This retrospective cohort study included 227 term, singleton IVF pregnancies.
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Study design: We conducted a retrospective cohort study with a nonequivalent control group.
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Methods: This is a retrospective cohort study conducted at the Uniformed Services University.
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Methods: We performed a retrospective cohort study of prospectively collected data.
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Design: Observational, retrospective cohort study using secondary clinical and administrative data.
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Methods: We evaluated 32 patients who were part of a multicenter retrospective cohort.
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Methods: This is a longitudinal retrospective cohort study of APS patients.
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Methods: A retrospective cohort study was conducted in a single Irish maternity hospital.
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Study design: A retrospective cohort study was arranged in this research.
