We assessed risk factors for colistin resistance among carbapenem-resistant Klebsiella pneumoniae (CRKP) from 375 patients in long-term acute care hospitals. Recent colistin or polymyxin B exposure was associated with increased odds of colistin resistance (adjusted odds ratio = 1.11 per day of exposure, 95% confidence interval = 1.03-1.19, P = .007).
Keywords: carbapenem-resistant Klebsiella pneumoniae; colistin; long-term acute care hospitals.
© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America.