| 1. |
- Eliasson, Gabriella, et al.
(författare)
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Comorbid conditions as predictors of mortality in severe COPD - an eight-year follow-up cohort study
- 2023
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Ingår i: European Clinical Respiratory Journal. - : Taylor & Francis. - 2001-8525. ; 10:1
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: Co-morbidities are common in chronic obstructive pulmonary disease (COPD) and are associated with increased morbidity and mortality. The aim of the present study was to explore the prevalence of several comorbid conditions in severe COPD, and to investigate and compare their associations with long-term mortality.Methods: In May 2011 to March 2012, 241 patients with COPD stage 3 or 4 were included in the study. Information was collected on sex, age, smoking history, weight and height, current pharmacological treatment, number of exacerbations the recent year and comorbid conditions. At December 31st, 2019, mortality data (all-cause and cause specific) were collected from the National Cause of Death Register. Data were analyzed using Cox-regression analysis with gender, age, previously established predictors of mortality and comorbid conditions as independent variables, and all-cause mortality and cardiac and respiratory mortality, respectively, as dependent variables.Results: Out of 241 patients, 155 (64%) were deceased at the end of the study period; 103 patients (66%) died of respiratory disease and 25 (16%) of cardiovascular disease. Impaired kidney function was the only comorbid condition independently associated with increased all-cause mortality (HR (95% CI) 3.41 (1.47-7.93) p=0.004) and respiratory mortality (HR (95%CI) 4.63 (1.61 to 13.4), p = 0.005). In addition, age >= 70, BMI <22 and lower FEV1 expressed as %predicted were significantly associated with increased all-cause and respiratory mortality.Conclusion: In addition to the risk factors high age, low BMI and poor lung function; impaired kidney function appears to be an important risk factor for mortality in the long term, which should be taken into account in the medical care of patients with severe COPD.
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| 2. |
- Sachpazidou, Varvara, et al.
(författare)
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The exploration of seaweed biomass as a fuel for energy production
- 2019
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Ingår i: XVI-th International youth Science and Environmental Baltic Region Countries Forum 7–9 October 2019, Gdansk, Poland. - : Institute of Physics (IOP). ; , s. 1-7
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Konferensbidrag (refereegranskat)abstract
- In the long history of coastal people, it has proven to be multiple uses of seaweeds. Commonly used of seaweeds became as fertilizers and soil conditions, as animal and fish feed, as biomass for fuel, as cosmetics, as integrated aquaculture, wastewater treatment for the reduction of nitrogen and phosphorus compounds or for the removal of toxic metals from industrial wastewater. In coastal areas with significantly high sources of algae, withered leaves and parts of the root system of the plants, regularly washed up on the shores, where they accumulate in thick layers mixed with sand and organic residues. Despite the many benefits and seaweed contribution to the protection of coastal ecosystems, coastal municipalities every year at the beginning of the summer season are removing these deposits. Once removed from the shores, this seaweed biomass generally ends up in the landfills. The management of rich seaweed residues on the southern coast of the Baltic Sea in Sweden is aimed at the identification of the seaweed species among the coastal area and its transformation into a green alternative energy source. The present study deals with the exploration of the Baltic Sea biomass as a fuel for energy production. The sources of aquatic bioenergy are analysed, while technologies used to convert aquatic plants to biofuels will be also examined in the near future.
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