Even under such a scenario, bias-corrected adjusted hazards ratio estimates were expected to identify only ~20% higher risk of ED presentation among BA.4/BA.5 cases as compared to BA.2 cases; bias-corrected differences in risk of other endpoints did not reach statistical significance even within our large sample of 106,532 cases.
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Association of SARS-CoV-2 BA.4/BA.5 Omicron lineages with immune escape and clinical outcome.
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