Attributable mortality and excess length of stay associated with third-generation cephalosporin-resistant Enterobacterales bloodstream infections: a prospective cohort study in Suva, Fiji

•Pacific island countries have contributed few data to global AMR burden estimates.•We assessed the impact of third-generation cephalosporin resistance (3GC-R) in Fiji.•3GC-R was common but mortality was high regardless of the resistance profile.•We found minimal impact by 3GC-R on the adjusted hazard of in-hospital mortality.•3GC-R infections were associated with an increased length of hospital stay.