Duration Estimate (percentage of population) 95% Confidence interval Any duration 2.51% 2.29% to 2.73% 12 weeks or more 1.75% 1.56% to 1.93% 12 months or more 1.12% 0.97% to 1.27% The ONS estimates relate to self-reported long COVID, as experienced by study participants who responded to a representative survey, rather than to clinically diagnosed ongoing symptomatic COVID-19 or post-COVID-19 syndrome in the full population. S6W...