| Title |
Prognostic role of D-dimer for in-hospital and 1-year mortality in exacerbations of COPD
|
|---|---|
| Published in |
International Journal of Chronic Obstructive Pulmonary Disease, October 2016
|
| DOI | 10.2147/copd.s112882 |
| Pubmed ID | |
| Authors |
Guoping Hu, Yankui Wu, Yumin Zhou, Zelong Wu, Liping Wei, Yuqun Li, GongYong Peng, Weiqiang Liang, Pixin Ran |
| Abstract |
Serum D-dimer is elevated in respiratory disease. The objective of our study was to investigate the effect of D-dimer on in-hospital and 1-year mortality after acute exacerbations of chronic obstructive pulmonary disease (AECOPD). Upon admission, we measured 343 AECOPD patients' serum D-dimer levels and arterial blood gas analysis, and recorded their clinical characteristics. The level of D-dimer that discriminated survivors and non-survivors was determined using a receiver operator curve (ROC). The risk factors for in-hospital mortality were identified through univariate analysis and multiple logistic regression analyses. To evaluate the predictive role of D-dimer for 1-year mortality, univariate and multivariate Cox regression analyses were performed. In all, 28 patients died, and 315 patients survived in the in-hospital period. The group of dead patients had lower pH levels (7.35±0.11 vs 7.39±0.05, P<0.0001), higher D-dimer, arterial carbon dioxide tension (PaCO2), C-reactive protein (CRP), and blood urea nitrogen (BUN) levels (D-dimer 2,244.9±2,310.7 vs 768.2±1,078.4 µg/L, P<0.0001; PaCO2: 58.8±29.7 vs 46.1±27.0 mmHg, P=0.018; CRP: 81.5±66, P=0.001; BUN: 10.20±6.87 vs 6.15±3.15 mmol/L, P<0.0001), and lower hemoglobin levels (118.6±29.4 vs 128.3±18.2 g/L, P=0.001). The areas under the ROC curves of D-dimer for in-hospital death were 0.748 (95% confidence interval (CI): 0.641-0.854). D-dimer ≥985 ng/L was a risk factor for in-hospital mortality (relative risk =6.51; 95% CI 3.06-13.83). Multivariate logistic regression analysis also showed that D-dimer ≥985 ng/L and heart failure were independent risk factors for in-hospital mortality. Both univariate and multivariate Cox regression analyses showed that D-dimer ≥985 ng/L was an independent risk factor for 1-year death (hazard ratio (HR) 3.48, 95% CI 2.07-5.85 for the univariate analysis; and HR 1.96, 95% CI 1.05-3.65 for the multivariate analysis). D-dimer was a strong and independent risk factor for in-hospital and 1-year death for AECOPD patients. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Practitioners (doctors, other healthcare professionals) | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 29 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 29 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 6 | 21% |
| Student > Master | 4 | 14% |
| Student > Ph. D. Student | 4 | 14% |
| Student > Postgraduate | 2 | 7% |
| Student > Doctoral Student | 2 | 7% |
| Other | 4 | 14% |
| Unknown | 7 | 24% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 12 | 41% |
| Nursing and Health Professions | 3 | 10% |
| Pharmacology, Toxicology and Pharmaceutical Science | 2 | 7% |
| Agricultural and Biological Sciences | 2 | 7% |
| Biochemistry, Genetics and Molecular Biology | 1 | 3% |
| Other | 1 | 3% |
| Unknown | 8 | 28% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 November 2016.
All research outputs
#20,656,161
of 25,373,627 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#2,078
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Outputs of similar age
#257,462
of 332,569 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#83
of 96 outputs
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