Frontiers in public health · 2026
Association between MDROs colonization and subsequent infections in ICU patients: a retrospective cohort study.
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Cheng Shanbi, Tong Dejun, Zhao Qianqian, Xiao Bing, Zhang Yudong, Gong Yibo
Аннотация
OBJECTIVE: To investigate the association between multidrug-resistant organisms (MDROs) colonization and subsequent infection in intensive care unit (ICU) patients.
METHODS: A retrospective analysis was conducted on 388 ICU patients admitted to the Second Xiangya Hospital between January 2023 and December 2025. Patients were divided into infection (n = 47) and non-infection (n = 341) groups according to whether they developed an MDROs infection within 28 days of ICU admission. Clinical data were collected, and univariate and multivariate logistic regression analyses were performed to identify the factors associated with MDROs infection. A nomogram model was constructed.
RESULTS: Among the 388 ICU patients, 99 (25.52, 95%CI: 21.44-30.08%) were colonized by MDROs. A total of 108 MDROs isolates were detected, including 29 strains of ESBL-producing Escherichia coli (ESBL-EC, 26.61%), 54 strains of ESBL-producing Klebsiella pneumoniae (ESBL-KP, 49.54%), 16 strains of methicillin-resistant Staphylococcus aureus (MRSA, 14.68%), and 9 strains of methicillin-resistant Staphylococcus epidermidis (MRSE, 9.17%). Logistic regression analysis showed that diabetes (OR = 2.523, 95% CI: 1.095-5.814), MDROs colonization (OR = 5.155, 95% CI: 2.302-11.544), APACHE II score (OR = 2.043, 95% CI: 1.597-2.614), and albumin level (OR = 0.778, 95% CI: 0.679-0.893) were independent factors associated with MDROs infection in ICU patients. When these variables were incorporated into a logistic regression nomogram, the AUC values for the training and validation sets were 0.894 (95% CI: 0.832-0.957) and 0.896 (95% CI: 0.828-0.964), respectively.
CONCLUSION: Diabetes, MDROs colonization, high APACHE II scores, and low albumin levels are factors associated with MDROs infection in ICU patients. The nomogram constructed based on these factors may facilitate the early identification of patients at high risk for MDROs infection and provide a basis for individualized treatment strategies.
METHODS: A retrospective analysis was conducted on 388 ICU patients admitted to the Second Xiangya Hospital between January 2023 and December 2025. Patients were divided into infection (n = 47) and non-infection (n = 341) groups according to whether they developed an MDROs infection within 28 days of ICU admission. Clinical data were collected, and univariate and multivariate logistic regression analyses were performed to identify the factors associated with MDROs infection. A nomogram model was constructed.
RESULTS: Among the 388 ICU patients, 99 (25.52, 95%CI: 21.44-30.08%) were colonized by MDROs. A total of 108 MDROs isolates were detected, including 29 strains of ESBL-producing Escherichia coli (ESBL-EC, 26.61%), 54 strains of ESBL-producing Klebsiella pneumoniae (ESBL-KP, 49.54%), 16 strains of methicillin-resistant Staphylococcus aureus (MRSA, 14.68%), and 9 strains of methicillin-resistant Staphylococcus epidermidis (MRSE, 9.17%). Logistic regression analysis showed that diabetes (OR = 2.523, 95% CI: 1.095-5.814), MDROs colonization (OR = 5.155, 95% CI: 2.302-11.544), APACHE II score (OR = 2.043, 95% CI: 1.597-2.614), and albumin level (OR = 0.778, 95% CI: 0.679-0.893) were independent factors associated with MDROs infection in ICU patients. When these variables were incorporated into a logistic regression nomogram, the AUC values for the training and validation sets were 0.894 (95% CI: 0.832-0.957) and 0.896 (95% CI: 0.828-0.964), respectively.
CONCLUSION: Diabetes, MDROs colonization, high APACHE II scores, and low albumin levels are factors associated with MDROs infection in ICU patients. The nomogram constructed based on these factors may facilitate the early identification of patients at high risk for MDROs infection and provide a basis for individualized treatment strategies.