biostudies-literatureLiu JChina Scholarship Council6199-6223https://www.ebi.ac.uk/biostudies/studies/S-EPMC12460969biostudies-literatureUnknown81(10)<h4>Aims</h4>To synthesise evidence on decision regret about treatment amongst women with early breast cancer, including (1) the type of treatment related to decision regret, (2) the level of decision regret, and (3) factors associated with decision regret.<h4>Design</h4>Integrative review.<h4>Methods</h4>Studies published between January 2000 and December 2023 were searched from five online databases to provide up-to-date evidence. The Joanna Briggs Institute critical appraisal tools were used to evaluate the quality of the studies. The constant comparison strategy was employed for data analysis.<h4>Results</h4>A total of 26 studies were included. Breast cancer surgery was the most frequently studied treatment in relation to decision regret amongst women with early breast cancer, while adJournal of advanced nursingDecision Regret About Treatment Amongst Women With Early Breast Cancer: An Integrative Review.PMC12460969201808350089Chan SWLiu JLee RLTZhu JHunter SfalseDecision Regret About Treatment Amongst Women With Early Breast Cancer: An Integrative Review.<h4>Aims</h4>To synthesise evidence on decision regret about treatment amongst women with early breast cancer, including (1) the type of treatment related to decision regret, (2) the level of decision regret, and (3) factors associated with decision regret.<h4>Design</h4>Integrative review.<h4>Methods</h4>Studies published between January 2000 and December 2023 were searched from five online databases to provide up-to-date evidence. The Joanna Briggs Institute critical appraisal tools were used to evaluate the quality of the studies. The constant comparison strategy was employed for data analysis.<h4>Results</h4>A total of 26 studies were included. Breast cancer surgery was the most frequently studied treatment in relation to decision regret amongst women with early breast cancer, while ad2025-01-01T00:00:00Z2025 Oct2026-06-03T19:51:37.289Z2026-05-01T03:10:56.908ZS-EPMC124609693984453410.1111/jan.16767