Conclusion about the association between valve surgery and mortality in an infective endocarditis cohort changed after adjusting for survivor bias.

OBJECTIVE Survivor bias commonly weakens observational studies, even those published in premier journals. It occurs because patients who live longer are more likely to receive treatment than those who die early. We sought to quantify the effect of survivor bias on the association between valve surgery and mortality in infective endocarditis (IE). STUDY… CONTINUE READING