Menon U, Gentry-Maharaj A, Burnell M, et al. Tumour stage, treatment, and survival of women with high-grade serous tubo-ovarian cancer in UKCTOCS: an exploratory analysis of a randomised controlled trial. Lancet Oncol 2023; 24: 1018–28—In this Article, in figures 1 and 2, errors in labeling of the curves has been corrected,; and in the Methods section, in the fourth sentence of the penultimate paragraph, the first mention of adjuvant chemotherapy was removed. These corrections have been made to the online version as of Jan 29, 2024.