Significantly Reduced Alanine Aminotransferase Level Increases All-Cause Mortality Rate in the Elderly after Ischemic Stroke

Sang Joon An, Yun-Jung Yang, Na-mo Jeon, Yeon-Pyo Hong, Yeong In Kim and Doo-Young Kim
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Sang Joon An: Department of Neurology, Catholic Kwandong University International St Mary’s Hospital, Incheon 22711, Korea
Yun-Jung Yang: Institute of Biomedical Science, Catholic Kwandong University International St. Mary’s Hospital, Incheon 22711, Korea
Na-mo Jeon: Department of Rehabilitation Medicine, Catholic Kwandong University International St Mary’s Hospital, Incheon 22711, Korea
Yeon-Pyo Hong: Department of Preventive Medicine, College of Medicine, Chung-Ang University, Seoul 06974, Korea
Yeong In Kim: Department of Neurology, Catholic Kwandong University International St Mary’s Hospital, Incheon 22711, Korea
Doo-Young Kim: Department of Rehabilitation Medicine, Catholic Kwandong University International St Mary’s Hospital, Incheon 22711, Korea

IJERPH, 2021, vol. 18, issue 9, 1-10

Abstract: (1) Background: A significantly reduced alanine aminotransferase (ALT) level is being recognized as a risk factor of increasing mortality in the elderly in relation to frailty. In the elderly, both frailty and ischemic stroke are not only common, but are also associated with mortality. The aim of this research was to investigate whether a significantly reduced ALT level increases the all-cause mortality rate in the elderly with ischemic stroke. (2) Methods: Between February 2014 and April 2019, a retrospective study of 901 patients with ischemic stroke admitted to a university-affiliated hospital was conducted. Cox proportional hazard regression was used to determine whether a significantly reduced ALT level is an independent risk factor for mortality in elderly patients after an ischemic stroke. (3) Results: This study enrolled 323 older adults (age ? 65 years) who were first diagnosed with ischemic stroke. The mean age of the participants was 76.5 ± 6.6 years, the mean survival time was 37.1 ± 20.4 months, and the number of deaths was 96 (29.7%). Our results showed that reduced ALT level (less than 10 U/L) increased the risk of all-cause mortality in the elderly after ischemic stroke (adjusted HR: 3.24, 95% CI: 1.95–5.41; p < 0.001). (4) Conclusions: A significantly reduced ALT level at the time of diagnosis (less than 10 U/L) is an independent risk factor that increases the mortality rate in the elderly after ischemic stroke.

Keywords: aged; alanine transaminase; brain infarction; frailty; mortality (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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