Objectives: Drug resistance in Pseudomonas aeruginosa (PAE) is a serious health threat. Additionally, it is important to understand the associated socioeconomic burden.
Methods: Clinical information and hospital cost data for patients with PAE bloodstream infections (BSIs) in a tertiary teaching hospital (2011-2016) were collected retrospectively to estimate the direct economic burden. Socioeconomic loss incurred by patients was calculated using the human capital approach combined with estimating disability-adjusted life years (DALYs). Differences in socioeconomic burden between BSIs caused by carbapenem-resistant (CR) and carbapenem-susceptible (CS) PAE were compared.
Results: This study included data for 220 patients, of which were 29.5% (65/220) CR-PAE BSIs. The median direct economic burden of patients following CR-PAE BSI was significantly higher than following CS-PAE BSI ($5005.94 vs. $1462.86; P < 0.001). The median DALY loss was significantly higher in the CR-PAE group compared with CS-PAE group (0.024 vs. 0.008; P = 0.001). The median indirect socioeconomic loss of patients in the CR-PAE group tended to be significantly higher than in the CS-PAE group ($64.06 vs. $29.71; P = 0.011). The annual economic burden of CR-PAE is higher (up to >1.5 times) than the Chinese annual per capita GDP.
Conclusion: The economic burden of PAE BSIs is significant, irrespective of carbapenem resistance. The direct economic burden of CR-PAE BSI was at least three-fold that of CS-PAE BSI. The DALY loss caused by CR-PAE BSI is three-fold that caused by CS-PAE BSI. The indirect socioeconomic loss caused by CR-PAE BSI is more than twice that of CS-PAE BSI.
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