Compared to the contemporary control group, 30-day survivors of COVID-19 exhibited an increased risk (HR 1·40, 95% CI 1·36–1·44) and excess burden (13·46, 95% CI 12·11–14·84, per 1000 people at 12 months) of incident diabetes; and an increased risk (1·85, 1·78–1·92) and excess burden (12·35, 11·36–13·38) of incident antihyperglycaemic use. Analyses to estimate the risk of a composite endpoint of incident diabetes or antihyperglycaemic use yielded a HR of 1·46 (95% CI 1·43–1·50) and an excess burden of 18·03 (16·59–19·51) per 1000 people at 12 months (figure 1 and appendix pp 4, 12).