학술논문
Association of serum magnesium level change with in-hospital mortality.
Document Type
Academic Journal
Author
Thongprayoon C; Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA charat.thongprayoon@gmail.com.; Cheungpasitporn W; Internal Medicine, University of Mississippi Medical Center, Jackson, Mississippi, USA.; Hansrivijit P; Internal Medicine, UPMC Pinnacle Harrisburg, Harrisburg, Pennsylvania, USA.; Thirunavukkarasu S; Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.; Chewcharat A; Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.; Medaura J; Internal Medicine, University of Mississippi Medical Center, Jackson, Mississippi, USA.; Mao MA; Nephrology and Hypertension, Mayo Clinic, Jacksonville, Florida, USA.; Kashani KB; Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.; Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA.
Source
Publisher: BMJ Publishing Group Country of Publication: England NLM ID: 101719009 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2515-4478 (Electronic) Linking ISSN: 2515446X NLM ISO Abbreviation: BMJ Evid Based Med Subsets: MEDLINE
Subject
Language
English
Abstract
The objective of this study was to assess the association of in-hospital mortality risk based on change in serum magnesium levels in hospitalised patients. All adult patients admitted to our hospital from years 2009 to 2013 with at least two serum magnesium measurements during hospitalisation were included. Serum magnesium change, defined as the absolute difference between the highest and lowest serum magnesium, was categorised into six groups: 0-0.2, 0.3-0.4, 0.5-0.6, 0.7-0.8, 0.9-1.0, ≥1.1 mg/dL. In-hospital mortality was the outcome of interest. Logistic regression was used to assess the association between serum magnesium change and in-hospital mortality, using serum magnesium change of 0.0-0.2 mg/dL as the reference group. A total of 42 141 patients, with the median serum magnesium change during hospital stay of 0.3 (IQR 0.2-0.6) mg/dL, were studied. In-hospital mortality based on serum magnesium change of 0-0.2, 0.3-0.4, 0.5-0.6, 0.7-0.8, 0.9-1.0, ≥1.1 mg/dL was 1.3%, 2.3%, 3.1%, 5.0%, 6.5%, and 8.8%, respectively (p<0.001). After adjustment for potential confounders, increased serum magnesium change was significantly associated with higher in-hospital mortality with adjusted OR of 1.39 (95% 1.14-1.69) in serum magnesium change of 0.3-0.4, 1.48 (95% CI 1.21 to 1.81) in 0.5-0.6, 1.89 (95% CI 1.53 to 2.34) in 0.7-0.8, 1.85 (95% CI 1.45 to 2.37) in 0.9-1.0 and 1.89 (95% CI 1.48 to 2.41) in ≥1.1 mg/dL when compared with serum magnesium change group of 0-0.2 mg/dL. Increased in-hospital mortality was associated with both downward and upward trends of serum magnesium change during hospitalisation. The greater extent of change in serum magnesium levels was progressively associated with increased in-hospital mortality.
Competing Interests: Competing interests: None declared.
(© Author(s) (or their employer(s)) 2020. No commercial re-use. See rights and permissions. Published by BMJ.)
Competing Interests: Competing interests: None declared.
(© Author(s) (or their employer(s)) 2020. No commercial re-use. See rights and permissions. Published by BMJ.)