Trajectory of long covid symptoms after covid-19 vaccination: community based cohort study.

BMJ · 2022 · PMC9115603 · PMID 35584816

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an increasing trendno p-value reported

Evidence of a change to an increasing trend in long covid between first and second vaccine doses was, however, stronger when the sample was restricted to participants who received their first dose during the follow-up period 3 February to 5 September 2021 (P<0.001 for long covid of any severity, P=0.01 for activity-limiting long covid).

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