Investigation of pathogen resistance in Chinese cancer patients based on bacterial resistance surveillance in 23 provinces, 2016-2023.

Gram-negative 75.4% (270,609), Gram-positive 24.6% (88,177) of 358,786 isolates from cancer patients in these oncology centers.

Klebsiella pneumoniae showed stable imipenem resistance (1.6-1.9%) but increasing meropenem resistance (0.4-1.6%).

Pseudomonas aeruginosa imipenem resistance declined (12.5-7.9%), while meropenem resistance remained stable (7.0-5.2%); while Acinetobacter baumannii carbapenem resistance increased substantially (imipenem: 9.6-18.4%; meropenem: 4.7-18.8%).