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Zhao J, Liu M, Yu D, Zhang Y. Serum calcium and mortality in pediatric pneumonia patients admitted to the PICU: a retrospective cohort study. Sci Rep 2024; 14:18683. [PMID: 39134675 PMCID: PMC11319770 DOI: 10.1038/s41598-024-69885-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 08/09/2024] [Indexed: 08/15/2024] Open
Abstract
This study investigates serum calcium's prognostic value in pediatric pneumonia, focusing on its correlation with PICU mortality, to enhance understanding and treatment approaches in this field. Data from 414 pediatric pneumonia patients (2010-2019) admitted to the intensive care units at the Children's Hospital, Zhejiang University School of Medicine were analyzed. The study utilized restricted cubic spline analysis, Cox proportional hazard regression, and Kaplan-Meier survival curve analysis to assess the relationship between serum calcium levels at admission and PICU mortality risk. After adjusting for multivariate factors, for each 1 mmol/dL increase in serum calcium, the risk of mortality decreased by 24% (HR: 0.76, 95% CI 0.67-0.87). Among the three levels of serum calcium groups, higher serum calcium levels were linked to a 63% reduction in the mortality rate compared to lower levels (HR: 0.37, 95% CI 0.16-0.84). The cumulative hazard estimates of mortality significantly differed across serum calcium groups (log-rank P = 0.032). This association was consistent across diverse subgroups (P for interaction > 0.05). Higher serum calcium levels are associated with decreased PICU mortality in pediatric pneumonia, highlighting its potential as a prognostic marker.
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Affiliation(s)
- Jinling Zhao
- Department of Pediatrics, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
| | - Meihong Liu
- Department of Laboratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Dan Yu
- Department of Laboratory Medicine, Affiliated Wuxi Fifth Hospital of Jiangnan University, No. 1215 Guangrui Road, Wuxi, 214005, Jiangsu, China
| | - Yingying Zhang
- Department of Laboratory Medicine, Affiliated Wuxi Fifth Hospital of Jiangnan University, No. 1215 Guangrui Road, Wuxi, 214005, Jiangsu, China.
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Zhang K, Zhang T, Lv QY, Han Y, Cai T, Gu FM, Gu ZX, Zhao JY, Liang JY, Gao M, Gao YF, Hu R, Cui D, Li B, Liu K. U-shaped association between serum calcium and in-hospital mortality in diabetes patients with congestive heart failure: a cohort study. Sci Rep 2024; 14:13412. [PMID: 38862553 PMCID: PMC11167038 DOI: 10.1038/s41598-024-63603-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 05/30/2024] [Indexed: 06/13/2024] Open
Abstract
Previous studies have reported that the significant association between serum calcium and mortality substantially in patients, especially among those with intensive care unit (ICU). And In diabetes mellitus, congestive heart failure (CHF) is a significant comorbidity. We aim to evaluate the association between serum calcium levels and in-hospital mortality among patients with diabetes and congestive heart failure. The participants in this study were extracted from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. To scrutinize potential associations between serum calcium levels and in-hospital mortality, a comprehensive analysis encompassing multivariate logistic regression, cubic spline function model, threshold effect analysis, and subgroup analysis was performed. This retrospective cohort study encompassed 7063 patients, among whom the in-hospital mortality stood at 12.2%. In the multivariate logistic regression, adjusted odds ratios (ORs) were contrasted with the reference category Q6 (8.8-9.1 mg/dL) for serum calcium levels and in-hospital mortality. The adjusted ORs for Q1 (≤ 7.7 mg/dL), Q2 (7.7-8 mg/dL), and Q7 (≥ 9.1 mg/dL) were 1.69 (95% CI 1.17-2.44, p = 0.005), 1.62 (95% CI 1.11-2.36, p = 0.013), and 1.57 (95% CI 1.1-2.24, p = 0.012) respectively. The dose-response analysis uncovered a U-shaped relationship between serum calcium levels and in-hospital mortality in diabetic patients with heart failure. Subgroup analyses confirmed result stability notwithstanding the influence of diverse factors. Our investigation revealed a U-shaped correlation between serum calcium levels and in-hospital mortality in diabetes patients with congestive heart failure, pinpointing a significant inflection point at 9.05 mg/dL.
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Affiliation(s)
- Kai Zhang
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China.
| | - Tianqi Zhang
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China
| | - Qian Yu Lv
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China
| | - Yu Han
- Department of Ophthalmology, First Hospital of Jilin University, Changchun, China
| | - Tianyi Cai
- Department of Ophthalmology, Second Hospital of Jilin University, Changchun, China
| | - Fang Ming Gu
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China
| | - Zhao Xuan Gu
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China
| | - Jia Yu Zhao
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China
| | - Jia Ying Liang
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China
| | - Min Gao
- Department of Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Ya Fang Gao
- Department of Ophthalmology, Second Hospital of Jilin University, Changchun, China
| | - Rui Hu
- Department of Ophthalmology, Second Hospital of Jilin University, Changchun, China
| | - Dan Cui
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China
| | - Bo Li
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China
| | - Kexiang Liu
- Cardiovascular Surgery Department of Jilin University Second Hospital, No. 218, Ziqiang Street, Changchun, Jilin Province, China.
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Effect of Admission Serum Calcium Levels and Length of Stay in Patients with Acute Pancreatitis: Data from the MIMIC-III Database. Emerg Med Int 2022; 2022:4275283. [PMID: 35769519 PMCID: PMC9236806 DOI: 10.1155/2022/4275283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 06/03/2022] [Indexed: 11/17/2022] Open
Abstract
Objective. We retrospectively investigated the effect of admission serum calcium levels on length of stay (LOS) in patients hospitalized with acute pancreatitis (AP). Methods. Clinical data for 3156 patients diagnosed with AP were obtained from the Multiparametric Intelligent Monitoring in Intensive Care III (MIMIC-III) database. Restricted cubic spline curve (RCS) functions of dose-response analysis curves and logistic regression analysis were used to analyze the relationship between admission serum calcium levels and the LOS. Results. All patients were divided into 2 groups (<8.5 mg/dl group and ≥8.5 mg/dl group) based on RCS analysis. RCS showed a significant nonlinear negative correlation between blood calcium levels and the LOS (
). In addition, compared with patients with blood calcium <8.5 mg/dl, multivariate logistic regression analysis showed that patients with blood calcium ≥8.5 mg/dl had a reduced risk of the LOS >2 days (aOR = 0.653; 95% CI 0.507–0.842;
), a reduced risk of the LOS >5 days (aOR = 0.589; 95% CI 0.503–0.689;
), and a reduced risk of the LOS >7 days (aOR = 0.515; 95% CI 0.437–0.609;
). And similar results were found in the subgroup analysis. Conclusion. Our findings suggest that low blood calcium increases the LOS in patients with AP. More attention is needed for patients with combined low blood calcium levels (<8.5 mg/dl) in hospitalized AP patients.
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Hospital-Acquired Serum Ionized Calcium Derangements and Their Associations with In-Hospital Mortality. MEDICINES 2020; 7:medicines7110070. [PMID: 33227914 PMCID: PMC7699179 DOI: 10.3390/medicines7110070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/09/2020] [Accepted: 11/17/2020] [Indexed: 02/06/2023]
Abstract
Background: The objective of this study was to report the incidence of in-hospital serum ionized calcium derangement and its impact on mortality. Methods: We included 12,599 non-dialytic adult patients hospitalized at a tertiary medical center from January 2009 to December 2013 with normal serum ionized calcium at admission and at least 2 in-hospital serum ionized calcium values. Using serum ionized calcium of 4.60–5.40 mg/dL as the normal reference range, in-hospital serum ionized calcium levels were categorized based on the presence of hypocalcemia and hypercalcemia in hospital. We performed logistic regression to assess the relationship of in-hospital serum ionized calcium derangement with mortality. Results: Fifty-four percent of patients developed new serum ionized calcium derangements: 42% had in-hospital hypocalcemia only, 4% had in-hospital hypercalcemia only, and 8% had both in-hospital hypocalcemia and hypercalcemia. In-hospital hypocalcemia only (OR 1.28; 95% CI 1.01–1.64), in-hospital hypercalcemia only (OR 1.64; 95% CI 1.02–2.68), and both in-hospital hypocalcemia and hypercalcemia (OR 1.73; 95% CI 1.14–2.62) were all significantly associated with increased in-hospital mortality, compared with persistently normal serum ionized calcium levels. Conclusions: In-hospital serum ionized calcium derangements affect more than half of hospitalized patients and are associated with increased in-hospital mortality.
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Thongprayoon C, Cheungpasitporn W, Chewcharat A, Petnak T, Mao MA, Srivali N, Bathini T, Vallabhajosyula S, Qureshi F, Kashani K. Hospital-acquired serum phosphate derangements and their associated in-hospital mortality. Postgrad Med J 2020; 98:43-47. [PMID: 33087530 DOI: 10.1136/postgradmedj-2020-138872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/08/2020] [Accepted: 09/30/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND We aimed to report the incidence of hospital-acquired hypophosphataemia and hyperphosphataemia along with their associated in-hospital mortality. METHODS We included 15 869 adult patients hospitalised at a tertiary medical referral centre from January 2009 to December 2013, who had normal serum phosphate levels at admission and at least two serum phosphate measurements during their hospitalisation. The normal range of serum phosphate was defined as 2.5-4.2 mg/dL. In-hospital serum phosphate levels were categorised based on the occurrence of hospital-acquired hypophosphataemia and hyperphosphataemia. We analysed the association of hospital-acquired hypophosphataemia and hyperphosphataemia with in-hospital mortality using multivariable logistic regression. RESULTS Fifty-three per cent (n=8464) of the patients developed new serum phosphate derangements during their hospitalisation. The incidence of hospital-acquired hypophosphataemia and hyperphosphataemia was 35% and 27%, respectively. Hospital-acquired hypophosphataemia and hyperphosphataemia were associated with odds ratio (OR) of 1.56 and 2.60 for in-hospital mortality, respectively (p value<0.001 for both). Compared with patients with persistently normal in-hospital phosphate levels, patients with hospital-acquired hypophosphataemia only (OR 1.64), hospital-acquired hyperphosphataemia only (OR 2.74) and both hospital-acquired hypophosphataemia and hyperphosphataemia (ie, phosphate fluctuations; OR 4.00) were significantly associated with increased in-hospital mortality (all p values <0.001). CONCLUSION Hospital-acquired serum phosphate derangements affect approximately half of the hospitalised patients and are associated with increased in-hospital mortality rate.
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Affiliation(s)
- Charat Thongprayoon
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Wisit Cheungpasitporn
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Division of Nephrology, Department of Internal Medicine, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Api Chewcharat
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Tananchai Petnak
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Michael A Mao
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Jacksonville, Florida, USA
| | - Narat Srivali
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Saint Agnes Hospital, Baltimore, Maryland, USA
| | - Tarun Bathini
- Department of Internal Medicine, University of Arizona Medical Center, Tucson, Arizona, USA
| | | | - Fawad Qureshi
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Kianoush Kashani
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Thongprayoon C, Cheungpasitporn W, Hansrivijit P, Thirunavukkarasu S, Chewcharat A, Medaura J, Mao MA, Kashani KB. Impact of serum phosphate changes on in-hospital mortality. BMC Nephrol 2020; 21:427. [PMID: 33028266 PMCID: PMC7542949 DOI: 10.1186/s12882-020-02090-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 10/05/2020] [Indexed: 12/25/2022] Open
Abstract
Background Fluctuations in serum phosphate levels increased mortality in end-stage renal disease patients. However, the impacts of serum phosphate changes in hospitalized patients remain unclear. This study aimed to test the hypothesis that serum phosphate changes during hospitalization were associated with in-hospital mortality. Methods We included all adult hospitalized patients from January 2009 to December 2013 that had at least two serum phosphate measurements during their hospitalization. We categorized in-hospital serum phosphate changes, defined as the absolute difference between the maximum and minimum serum phosphate, into 5 groups: 0–0.6, 0.7–1.3, 1.4–2.0, 2.1–2.7, ≥2.8 mg/dL. Using serum phosphate change group of 0–0.6 mg/dL as the reference group, the adjusted odds ratio of in-hospital mortality for various serum phosphate change groups was obtained by multivariable logistic regression analysis. Results A total of 28,149 patients were studied. The in-hospital mortality in patients with serum phosphate changes of 0–0.6, 0.7–1.3, 1.4–2.0, 2.1–2.7, ≥2.8 mg/dL was 1.5, 2.0, 3.1, 4.4, and 10.7%, respectively (p < 0.001). When adjusted for confounding factors, larger serum phosphate changes were associated with progressively increased in-hospital mortality with odds ratios of 1.35 (95% 1.04–1.74) in 0.7–1.3 mg/dL, 1.98 (95% CI 1.53–2.55) in 1.4–2.0 mg/dL, 2.68 (95% CI 2.07–3.48) in 2.1–2.7 mg/dL, and 5.04 (95% CI 3.94–6.45) in ≥2.8 mg/dL compared to serum phosphate change group of 0–0.6 mg/dL. A similar result was noted when we further adjusted for either the admission or mean serum phosphate during hospitalization. Conclusion Greater serum phosphate changes were progressively associated with increased in-hospital mortality.
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Affiliation(s)
- Charat Thongprayoon
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Wisit Cheungpasitporn
- Division of Nephrology, Department of Internal Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| | - Panupong Hansrivijit
- Department of Internal Medicine, University of Pittsburgh Medical Center Pinnacle, Harrisburg, PA, USA
| | - Sorkko Thirunavukkarasu
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Api Chewcharat
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Juan Medaura
- Division of Nephrology, Department of Internal Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| | - Michael A Mao
- Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Kianoush B Kashani
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA. .,Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
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Thongprayoon C, Cheungpasitporn W, Chewcharat A, Mao MA, Kashani KB. Serum ionised calcium and the risk of acute respiratory failure in hospitalised patients: a single-centre cohort study in the USA. BMJ Open 2020; 10:e034325. [PMID: 32205373 PMCID: PMC7103831 DOI: 10.1136/bmjopen-2019-034325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES The objective of this study was to evaluate the risk of acute respiratory failure in all hospitalised patients based on admission serum ionised calcium. DESIGN A retrospective cohort study. SETTING A tertiary referral hospital in Rochester, Minnesota, USA. PARTICIPANTS All hospitalised patients who had serum ionised calcium measurement within 24 hours of hospital admission from January 2009 to December 2013. Patients who were mechanically ventilated at admission were excluded. PREDICTORS Admission serum ionised calcium levels was stratified into six groups: ≤4.39, 4.40-4.59, 4.60-4.79, 4.80-4.99, 5.00-5.19 and ≥5.20 mg/dL. PRIMARY OUTCOME MEASURE The primary outcome was the development of acute respiratory failure requiring mechanical ventilation during hospitalisation. Logistic regression analysis was fit to assess the independent risk of acute respiratory failure based on various admission serum ionised calcium, using serum ionised calcium of 5.00-5.19 mg/dL as the reference group. RESULTS Of 25 709 eligible patients, with the mean serum ionised calcium of 4.8±0.4 mg/dL, acute respiratory failure requiring mechanical ventilation occurred in 2563 patients (10%). The incidence of acute respiratory failure was lowest when admission serum ionised calcium was 5.00-5.19 mg/dL, with the progressively increased risk of acute respiratory failure with decreased serum ionised calcium. In multivariate analysis with adjustment for potential confounders, the increased risk of acute respiratory failure requiring mechanical ventilation was significantly associated with admission serum ionised calcium of ≤4.39 (OR 2.52; 95% CI 2.12 to 3.00), 4.40-4.59 (OR 1.76; 95% CI 1.49 to 2.07) and 4.60-4.79 mg/dL (OR 1.48; 95% CI 1.27 to 1.72), compared with serum ionised calcium of 5.00-5.19 mg/dL. The risk of acute respiratory failure was not significantly increased when serum ionised calcium was at least 4.80 mg/dL. CONCLUSION The increased risk of acute respiratory failure requiring mechanical ventilation was observed when admission serum ionised calcium was lower than 4.80 mg/dL in hospitalised patients.
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Affiliation(s)
- Charat Thongprayoon
- Division of Nephrology and Hypertension, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Wisit Cheungpasitporn
- Division of Nephrology, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Api Chewcharat
- Division of Nephrology and Hypertension, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Michael A Mao
- Division of Nephrology and Hypertension, Mayo Clinic Florida, Jacksonville, Florida, USA
| | - Kianoush B Kashani
- Division of Nephrology and Hypertension, Mayo Clinic Rochester, Rochester, Minnesota, USA
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