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EuroOOPS: An international, multicentre study to implement nutritional risk screening and evaluate clinical outcome
Abstract
Background & aims The aim of the study was to implement nutritional risk screening (NRS-2002) and to assess the association between nutritional risk and clinical outcome. Methods NRS-2002 was implemented in 26 hospital departments (surgery, internal medicine, oncology, intensive care, gastroenterology and geriatrics) in Austria, the Czech Republic, Egypt, Germany, Hungary, Lebanon, Libya, Poland, Romania, Slovakia, Spain and Switzerland. Being a prospective cohort study, randomly selected adult patients were included at admission and followed during their hospitalisation. Data were collected on the nutritional risk screening, complications, mortality, length of stay and discharge. The correlation between risk status and clinical outcome was assessed and adjusted for confounders (age, speciality, diagnoses, comorbidity, surgery, cancer and region) by multivariate regression analysis. Results Of the 5051 study patients, 32.6% were defined as 'at-risk' by NRS-2002. 'At-risk' patients had more complications, higher mortality and longer lengths of stay than 'not at-risk' patients and these variables were significantly related to components of NRS-2002, also when adjusted for confounders. Conclusions Components of NRS-2002 are independent predictors of poor clinical outcome.
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“Observational studies have shown the frequency of complications in untreated at-risk patients to be three times higher than in patients not at-risk, and furthermore length of hospital stay (LOS) is 50% longer, which has a negative influence on clinical outcomes [18].”
From ESPEN guideline on nutritional support for polymorbid medical inpatients (2023) · cites this paper as [18]
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“While hospital undernutrition can be treated, it is often underdiagnosed and inappropriately addressed [ 17]; moreover, HRQoL and functional independence can be affected among people who have had a hospital admission, so that quality of life is of critical importance in chronic diseases and its…”
Trattamento delle fistole esofago-tracheo-bronchiali acquisite dell⬢adulto
Todesco, A., Armand, E., Gust, L., Fourdrain, A., Brioude, G., Trousse, D., Boulate, D., Doddoli, C., Dutau, H., Thomas, P., et al. (2025) · EMC - Tecniche Chirurgiche Torace · doi:10.1016/s1288-3336(25)51104-4
Lee, J.-H., Kwon, S., Yang, S., Choi, D., Kwon, J., & Park, Y. (2025) · Clinical Nutrition Research · doi:10.7762/cnr.2025.14.4.247
“Early identification of malnutrition caused by deficient nutritional intake can improve short-and long-term clinical outcomes [26].”
Nikolakopoulou, K., Chourdakis, M., Androutsos, O., Bahat, G., Pinar, E., Erdoğan, T., Abbasoğlu, O., & Poulia, K. (2025) · Nutrition (Burbank, Los Angeles County, Calif.) · doi:10.1016/j.clnesp.2025.07.884
Fernández, J. G., Suárez-Llanos, J. P., González, C. L., Mesa, E. M., Nuñez, M. A. G., Luis, M. D. F., & Ferrer, M. F. F. (2025) · Frontiers in Nutrition · doi:10.3389/fnut.2025.1648228
Mangelernährung in der Geriatrie – aktuelle Evidenz und Handlungsstrategien
Heck, B., Kastrup, R. O., Schara-Schmidt, E. U., Schnieder, E. M., Göttingen, & FunktionsoberärztinAllgemeinmedizinZusatzbe-zeichn (2025) · DGNeurologie · doi:10.1007/s42451-025-00792-2
Cai, Z., Dai, W.-D., & Cai, X.-W. (2025) · World Journal of Gastrointestinal Oncology · doi:10.4251/wjgo.v17.i6.100010
“…C-reactive protein-to-albumin ratio, have been proposed as important prognostic indicators for CRC. Malnutrition, as indicated by low levels of these markers, is associated with poorer treatment responses, increased incidence of postoperative complications, and shorter overall survival (OS)[19,20].”
Análise comparativa de ferramentas de triagem nutricional em unidades de terapia intensiva
Moss, L. A. D. S., & Badin, R. C. (2025) · Revista Eletrônica Acervo Saúde · doi:10.25248/reas.e20050.2025
“…MP e VAN DEN BERGHE G, 2014) A triagem nutricional é fundamental no cuidado de pacientes críticos em UTI, onde o risco de desnutrição é elevado (SORENSEN J, et al., 2008 O NRS-2002, entre as ferramentas analisadas, foi a primeira ferramenta a ser desenvolvida para pacientes hospitalizados,…”
Sandeep, K. S., & Kakade, S. (2025) · International Journal of Research in Medical Sciences · doi:10.18203/2320-6012.ijrms20250977
Weiland, S., Musabanganji, E., Gasakura, M. M., & Ntaganzwa, L. (2025) · medRxiv · doi:10.1101/2025.02.27.25323048
Yin, L., Wang, H., Mao, F., Zhong, M., Yin, X., & Hu, X.-Y. (2024) · Perioperative Medicine · doi:10.1186/s13741-024-00476-7
Nutritional ultrasound: above body mass index, two cases presentation
Gómez-Jordan, S., Hoz, J. C. C.-D. L., Saumett, S., Molano, A., & Zúñiga-Rodríguez, E. (2024) · European Journal of Clinical Nutrition · doi:10.1038/s41430-024-01459-z
Nguyen, T. H., Pham, M. T., Pham, T. T., Ta, T. A., Nguyen, T. M. N., & Hoang, T. T. P. (2023) · Tạp chí Tim Mạch Học Việt Nam · doi:10.58354/jvc.107e.2023.715
“37-39 In our study, the high malnutrition risk group accounted for 31.1% of total patient deaths.”
BackgroundInfluentialZheng, J., Yu, F., Chen, Y., Ming, F., & Rao, Z. (2023) · Topics in Clinical Nutrition · doi:10.1097/tin.0000000000000311
Robleda-Font, G., Victòria-Moix-Gómez, M., Serrano-Herrera, C., & Navarro-Cano, G. (2023) · Enfermería clínica · doi:10.1016/j.enfcli.2022.12.003
Nutrition screening and therapy in the older surgical patient: an area that is ignored
Williams, D. G. A., & Miller, T. (2023) · International Anesthesiology Clinics · doi:10.1097/aia.0000000000000397
Exploring the rates of malnutrition risk and related factors among inpatients
Derin, Z. A., Çi̇fci̇, A., Yalçın, S., & Başer, T. (2022) · Journal of Translational and Practical Medicine · doi:10.51271/jtpm-0013
“(25) administered the NRS-2002 to 5051 patients and found malnutrition rates among the patients to be 51%, 45%, and 44% in three internal medicine wards in Eastern Europe, 67%, 38%, and 11% in three internal medicine wards in the Middle East, and 49%, 46%, 35%, and 16% in four internal medicine wards in Western Europe…”
BackgroundICU Readmission in Cardiac Surgical Subset: A Problem Worth Pondering
Kalaiselvan, J., Kashav, R., Kohli, J., Magoon, R., Shri, I., Grover, V., & Jhajharia, N. S. (2022) · Journal of Cardiac Critical Care TSS · doi:10.1055/s-0042-1759816
de Cáceres, C., Rico, T., Abreu, C., Velasco, A. I., Lozano, R., & Lozano, M. C. (2022) · Nutrition and Health · doi:10.1177/02601060211070108
“…shown the influence of nutritional status on surgical patients with delayed wound healing, increased number of infectious complications, longer duration of hospital stay and increased mortality (Kyle et al., 2006; Lobo et al., 2009; Ordoñez et al., 2013; Sauer et al., 2019; Sorensen et al., 2008).”
BackgroundPreoperative Evaluation in Colorectal Patients
Landmann, R., & Francone, T. D. (2021) · Springer eBooks · doi:10.1007/978-3-030-66049-9_6 · Cited by 1
de la Barca, A. M. C., Ibarra-Pastrana, É. N., & Serralde-Zúñiga, A. E. (2021) · Nutrición Hospitalaria · doi:10.20960/nh.03734 · Cited by 1
“No obstante, es común que se presente, ya que en estudios realizados en UCI de América Latina se ha encontrado un déficit proteico de -42,2 g/día, con acumulación en 5 días de 175,7 g ± 121 g (6).”
The Association between Nutritional Parameters and the Prognosis of Community Acquired Pneumonia
Mayya, H., Hejazie, M., Zreik, Y., & Alkhayer, A. (2021) · Asian Journal of Research in Infectious Diseases · doi:10.9734/ajrid/2021/v7i230211
Atypical Presentation of Vitamin C Deficiency Manifesting as Petechial Hemorrhaging
Am, B., K, G., Eh, C., K., M., Walters, T., Me, P., & Mk, T. (2021) · Journal of Family Medicine · doi:10.26420/jfammed.2021.1254
“In high-income countries such as the United States, approximately one-third of hospitalized patients are either at risk for malnutrition or are already malnourished at the time of admission [1].”
BackgroundRole of Nutrition in Prevention and Prognosis of the COVID-19 Infection - A Review
Chitra, U., & Sharma, P. (2021) · International Journal of Science and Research (IJSR) · doi:10.21275/sr21408153701
Perioperative nutritional state as a surgical risk in oncologic patients
Kollár, D., Benedek-Tóth, Z., Drozgyik, A., Molnár, F. T., & Oláh, A. (2021) · Orvosi Hetilap · doi:10.1556/650.2021.31987
“[22] Sorensen J, Kondrup J, Prokopowicz J, et al.”
Background
Metadata
- Authors
- Sorensen, J., Kondrup, J., Prokopowicz, J., Schiesser, M., Krähenbühl, L., Meier, R., & Liberda, M.
- Affiliations
- University of Copenhagen (DK)
- University Hospital Zurich (CH)
- HFR Freiburg Kantonsspital (CH)
- Venue
- Clinical Nutrition
- Publisher
- Elsevier BV
- Published
- 2008-06
- Volume
- 27
- Issue
- 3
- Pages
- 340-349
- ISSN
- 0261-5614 (ISSN-L)
- OpenAlex
- W2041669990
- Cited by
- 607
- References
- 0
- Citations by year
- 2026: 18 · 2025: 22 · 2024: 31 · 2023: 40 · 2022: 37 · 2021: 56 · 2020: 47 · 2019: 47 · 2018: 24 · 2017: 33 · 2016: 29 · 2015: 42 · 2014: 41 · 2013: 34 · 2012: 35
- FWCI
- 21.49
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Clinical Nutrition (publishedVersion)
- PubMed (publishedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
- Topics
- Health Sciences › Nursing › Nutrition and Dietetics › Clinical Nutrition and Gastroenterology
- Health Sciences › Medicine › Physiology (medical) › Nutrition and Health in Aging
- Health Sciences › Nursing › Nutrition and Dietetics › Dietetics, Nutrition, and Education
- Keywords
- nutritional risk screening, NRS-2002, nutritional risk, clinical outcomes, in-hospital mortality, postoperative complications, length of hospital stay, hospital discharge, predictors of poor outcome, multicenter study
- MeSH terms
- Female, Humans, Length of Stay, Male, Mass Screening, Middle Aged, Nutritional Status, Predictive Value of Tests, Prognosis, Prospective Studies, Sensitivity and Specificity, Cohort Studies, Weight Loss, Nutrition Assessment, Multivariate Analysis, Treatment Outcome, Hospital Mortality, Risk Assessment, Malnutrition
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