Could Urine pH be a New Parameter for Mortality?

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Ayse Sahin Tutak
Hüseyin Avni Fındıklı


Intensive care unit, mortality, urinary pH


Background: Full urine analysis is a simple and in expensive test that can be easily performed in almost all laboratories and provides extremely useful information. This study aimed to examine whether urinary pH has any prognostic role in respect of mortality in intensive care unit (ICU) patients. Methods: In this study, a retrospective examination of patients hospitalized in the Internal Diseases Intensive Care Unit between 2017-2018 at the Investigators' Hospital was performed. A total of 2100 patients were excluded, of which 563 met at least one of the exclusion criteria. Results: Age, the total length of hospital stay (TLSH), and mortality were significantly higher in the pH ≤ 5.5 group (p<0.001). In the multivariate logistic regression analysis, the age (p < 0001, OR = 0.978), TLSH (p < 0001, OR = 0.932), and urinary pH (p < 0.05, OR = 0.718) levels were determined as independent risk factors associated with mortality. Conclusion: The pH value in general ICU patients was evaluated in respect of mortality could be an independent risk factor for morbidity and mortality.


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