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Du S, Lin K, Li J, Zhou X, Wang C, Liu J, Li N, Chen J. Association Between the Serum Phosphate Levels and Hospital Mortality as Well as 90-Day Mortality Among Critically Ill Patients with Chronic Obstructive Pulmonary Disease: A Retrospective Cohort Study. Int J Chron Obstruct Pulmon Dis 2024; 19:1681-1693. [PMID: 39055391 PMCID: PMC11269398 DOI: 10.2147/copd.s465752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Accepted: 07/13/2024] [Indexed: 07/27/2024] Open
Abstract
Purpose COPD patients frequently have abnormal serum phosphorus levels. The objective of this study was to examine the correlation between serum phosphorus levels with hospital and 90-day mortality in critically ill patients with COPD. Patients and Methods The MIMIC IV database was used for this retrospective cohort analysis. We extracted demographics, vital signs, laboratory tests, comorbidity, antibiotic usage, ventilation and scoring systems within the first 24 hours of ICU admission. Restricted cubic splines and multivariate cox regression analysis models were used to evaluate the connection between serum phosphorus with hospital and 90-day mortality. We assessed and classified various factors including gender, age, renal disease, severe liver disease, the utilization of antibiotics and congestive heart failure. Results We included a total of 3611 patients with COPD, with a median age of 70.7 years. After adjusting for all other factors, we observed a significant positive association between serum phosphate levels with both hospital mortality (HR 1.19, 95% CI: 1.07-1.31, p<0.001) and 90-day mortality (HR 1.15, 95% CI: 1.06-1.24, p<0.001). Compared to the medium group (Q2 ≥3.15, <4.0), the adjusted hazard ratios for hospital mortality were 1.47 (95% CI: 1.08-2, p=0.013), and 1.31 (95% CI: 1.06-1.61, p=0.013) for 90-day mortality in the high group (Q3≥4.0). Hospital mortality decreased at serum phosphate levels below 3.8 mg/dl (HR 0.664, 95% CI: 0.468-0.943, p=0.022), but increased for both hospital (HR 1.312, 95% CI: 1.141-1.509, p<0.001) and 90-day mortality (HR 1.236, 95% CI: 1.102-1.386, p<0.001) when levels were above 3.8 mg/dl. Subgroup and sensitivity analyses yielded consistent results. Conclusion In critical ill COPD patients, this study demonstrated a non-linear association between serum phosphate levels and both hospital and 90-day mortality. Notably, there was an inflection point at 3.8 mg/dl, indicating a significant shift in outcomes. Future prospective research is necessary to validate this correlation.
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Affiliation(s)
- Shuang Du
- Department of Rehabilitation Medicine, The First People’s Hospital of Jin Tang County, Chengdu, Sichuan, 610400, People’s Republic of China
| | - Ke Lin
- Traditional Chinese Medicine Department, The First People’s Hospital of Jintang County, Chengdu, Sichuan, 610400, People’s Republic of China
| | - Jing Li
- Department of Respiratory and Critical Care Medicine, The First People’s Hospital of Jintang County, Chengdu, Sichuan, 610400, People’s Republic of China
| | - Xin Zhou
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Chaolan Wang
- Traditional Chinese Medicine Department, The First People’s Hospital of Jintang County, Chengdu, Sichuan, 610400, People’s Republic of China
| | - Jun Liu
- Department of Respiratory and Critical Care Medicine, The First People’s Hospital of Jintang County, Chengdu, Sichuan, 610400, People’s Republic of China
| | - Na Li
- Traditional Chinese Medicine Department, The First People’s Hospital of Jintang County, Chengdu, Sichuan, 610400, People’s Republic of China
| | - Jian Chen
- Traditional Chinese Medicine Department, The First People’s Hospital of Jintang County, Chengdu, Sichuan, 610400, People’s Republic of China
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Alupo P, Katagira W, Mukunya D, Okimat P, Tejwani V, Kayongo A, Nalunjogi J, Robertson NM, Jones R, Hurst JR, Kirenga B, Siddharthan T. The Neutrophil-to-Lymphocyte Ratio as a Predictor of Acute Exacerbations Among Patients With COPD in Uganda. CHRONIC OBSTRUCTIVE PULMONARY DISEASES (MIAMI, FLA.) 2024; 11:187-195. [PMID: 38237091 PMCID: PMC11075344 DOI: 10.15326/jcopdf.2023.0443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/23/2023] [Indexed: 03/28/2024]
Abstract
Background The neutrophil-to-lymphocyte ratio (NLR) is an inexpensive biomarker that potentially predicts acute exacerbations of chronic obstructive pulmonary disease (AECOPDs). We evaluated the association of baseline NLR and respiratory hospitalization risk within one year among chronic obstructive pulmonary disease (COPD) patients in Uganda, a low- and middle-income country. Methods A total of 312 COPD patients were followed for one year. Clinical characteristics and exacerbation rates were collected. Poisson regression with robust variance estimators was used to measure the association between NLR and hospital admissions due to COPD exacerbations. Receiver-operator characteristic (ROC) curves and the area under the curve were used to assess the ability of NLR to predict AECOPDs. Results The median (Q 1, Q 3) age was 64 years (53, 71). Females comprised 50.96% (n=159) of the cohort, and 71.2% (n=222) of participants had moderate or severe COPD. A total of 9.9% (n=31) of participants experienced a COPD exacerbation during the period of follow-up. At baseline, the median (Q 1, Q 3) NLR ratio among participants who experienced an exacerbation was 1.46 (0.92, 2.33) compared to 1.03 (0.72,1.42) among those who did not experience one during the follow-up period (p=0.002). Using Youden and Liu's methods, the optimal NLR cutoff for predicting COPD exacerbation was 1.17. This cutoff resulted in a ROC curve area of 0.64 (95% confidence interval: 0.56, 0.73). Conclusion The NLR could be used as a risk predictor, in low- and middle-income countries, for hospital admissions due to COPD exacerbations. A cutoff of 1.17 was an independent predictor of hospitalization due to acute exacerbations of COPD within one year.
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Affiliation(s)
| | | | - David Mukunya
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Paul Okimat
- Soroti District Local Government, Soroti, Uganda
| | - Vickram Tejwani
- Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Alex Kayongo
- Makerere University Lung Institute, Kampala, Uganda
| | | | - Nicole M. Robertson
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Rupert Jones
- Makerere University Lung Institute, Kampala, Uganda
- Faculty of Health, University of Plymouth, Plymouth, United Kingdom
| | - John R. Hurst
- Respiratory, University College London, London, United Kingdom
| | - Bruce Kirenga
- Makerere University Lung Institute, Kampala, Uganda
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
- *Joint senior authorship
| | - Trishul Siddharthan
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Miami, Miami, Florida, United States
- *Joint senior authorship
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Cao L, Liu X, Sun T, Zhang Y, Bao T, Cheng H, Tian Z. Predictive and Diagnostic Values of Systemic Inflammatory Indices in Bronchopulmonary Dysplasia. CHILDREN (BASEL, SWITZERLAND) 2023; 11:24. [PMID: 38255338 PMCID: PMC10814477 DOI: 10.3390/children11010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/19/2023] [Accepted: 12/23/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is the most common respiratory complication in preterm infants, and there is a lag in the diagnosis of BPD. Inflammation is a vital pathogenic factor for BPD; we aim to evaluate the predictive and diagnostic values of systemic inflammatory indices in BPD. METHODS Between 1 January 2019 and 31 May 2023, the clinical data of 122 premature infants with a gestational age of <32 weeks in the Department of Neonatology, the Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, were retrospectively collected and classified into non-BPD (n = 72) and BPD (n = 50) groups based on the National Institute of Child Health and Human Development 2018 criteria. To compare the general characteristics of each group, we identified the independent risk variables for BPD using multivariate logistic regression analysis, compared the systemic inflammatory indices at birth, 72 h, 1 week, 2 weeks, and 36 weeks postmenstrual age (PMA), and constructed the receiver operating characteristic curves of neutrophil-to-lymphocyte ratio (NLR) diagnosis of BPD at different time points. RESULTS ① The independent risk factors for BPD in preterm infants were birth weight, small for gestational age, and days of oxygen therapy (all p < 0.05). ② At 72 h and 1 week after birth, the serum NLR of the BPD group was higher than for the non-BPD group (p < 0.05). Furthermore, the neutrophil count (N), NLR, monocyte-to-lymphocyte ratio (MLR), systemic immune-inflammation index, systemic inflammation response index (SIRI), and pan-immune-inflammation value of infants with BPD were higher than the non-BPD group at 3 weeks after birth (p < 0.05). Moreover, at 36 weeks of PMA, the serum N, NLR, MLR, and SIRI of BPD infants were higher than those of non-BPD infants (p < 0.05). ③ The NLR of infants with and without BPD gradually increased after birth, reaching a peak at 72 h and 1 week, respectively. At 3 weeks postnatal, the NLR had the highest predictive power for BPD, with an area under the curve (AUC) of 0.717 (p < 0.001); the sensitivity was 56% and specificity was 86.1%. In addition, the NLR at 36 weeks of PMA exhibited some diagnostic value for BPD. The AUC was 0.693 (p < 0.001), the sensitivity was 54%, and specificity was 83.3%. CONCLUSIONS At 3 weeks after birth and 36 weeks of PMA, some systemic inflammation indices (like N, NLR, SIRI) of preterm infants with BPD have specific predictive and diagnostic values; these indices may help the management of high-risk preterm infants with BPD.
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Affiliation(s)
| | | | | | | | | | | | - Zhaofang Tian
- Department of Neonatology, The Affiliated Huaian No.1 People’s Hospital of Nanjing Medical University, Huai’an 223300, China; (L.C.); (X.L.); (T.S.); (Y.Z.); (T.B.); (H.C.)
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Di Rosa M, Sabbatinelli J, Soraci L, Corsonello A, Bonfigli AR, Cherubini A, Sarzani R, Antonicelli R, Pelliccioni G, Galeazzi R, Marchegiani F, Iuorio S, Colombo D, Burattini M, Lattanzio F, Olivieri F. Neutrophil-to-lymphocyte ratio (NLR) predicts mortality in hospitalized geriatric patients independent of the admission diagnosis: a multicenter prospective cohort study. J Transl Med 2023; 21:835. [PMID: 37990223 PMCID: PMC10664513 DOI: 10.1186/s12967-023-04717-z] [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: 09/26/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND The Neutrophil-to-lymphocyte ratio (NLR) is a marker of poor prognosis in hospitalized older patients with different diseases, but there is still no consensus on the optimal cut-off value to identify older patients at high-risk of in-hospital mortality. Therefore, in this study we aimed at both validating NLR as a predictor of death in older hospitalized patients and assess whether the presence of specific acute diseases can modify its predictive value. METHODS This prospective cohort study included 5034 hospitalizations of older patients admitted to acute care units in the context of the ReportAge study. NLR measured at admission was considered as the exposure variable, while in-hospital mortality was the outcome of the study. ROC curves with Youden's method and restricted cubic splines were used to identify the optimal NLR cut-off of increased risk. Cox proportional hazard models, stratified analyses, and Kaplan-Meier survival curves were used to analyse the association between NLR and in-hospital mortality. RESULTS Both continuous and categorical NLR value (cut-off ≥ 7.95) predicted mortality in bivariate and multivariate prognostic models with a good predictive accuracy. The magnitude of this association was even higher in patients without sepsis, congestive heart failure, and pneumonia, and those with higher eGFR, albumin, and hemoglobin (p < 0.001). A negative multiplicative interaction was found between NLR and eGFR < 45 (p = 0.001). CONCLUSIONS NLR at admission is a readily available and cost-effective biomarker that could improve identification of geriatric patients at high risk of death during hospital stay independent of admitting diagnosis, kidney function and hemoglobin levels.
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Affiliation(s)
- Mirko Di Rosa
- Centre for Biostatistics and Applied Geriatric Clinical Epidemiology, IRCCS INRCA, Ancona, Italy
| | - Jacopo Sabbatinelli
- Department of Clinical and Molecular Sciences, Università Politecnica Delle Marche, Ancona, Italy
- Laboratory Medicine Unit, Azienda Ospedaliero Universitaria Delle Marche, Ancona, Italy
| | - Luca Soraci
- Unit of Geriatric Medicine, IRCSS INRCA, C.da Muoio Piccolo, 87100, Cosenza, Italy.
| | - Andrea Corsonello
- Centre for Biostatistics and Applied Geriatric Clinical Epidemiology, IRCCS INRCA, Ancona, Italy
- Unit of Geriatric Medicine, IRCSS INRCA, C.da Muoio Piccolo, 87100, Cosenza, Italy
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | | | - Antonio Cherubini
- Geriatria, Accettazione Geriatrica e Centro di ricerca per l'invecchiamento, IRCCS INRCA, Ancona, Italy
| | - Riccardo Sarzani
- Department of Clinical and Molecular Sciences, Università Politecnica Delle Marche, Ancona, Italy
- Internal Medicine and Geriatrics, IRCCS INRCA, Ancona, Italy
| | | | | | - Roberta Galeazzi
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, Ancona, Italy
| | | | | | | | | | | | - Fabiola Olivieri
- Department of Clinical and Molecular Sciences, Università Politecnica Delle Marche, Ancona, Italy
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, Ancona, Italy
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