MON-LB687 BOTH MALNUTRITION AND FRAILTY, AND MALNUTRITION AND SARCOPENIA OVERLAP SUBSTANTIALLY IN HOSPITALIZED OLDER ADULTS: A SYSTEMATIC REVIEW AND META-ANALYSIS G. Ligthart-Melis 1 , Y. Luiking 1* , A. Kakourou 1 , S. Elemans 1 , T. Cederholm 2 , A. Maier 3 , M. De van der Schueren 4 . 1 Danone Nutricia Research, Utrecht, Netherlands; 2 Uppsala University Hospital, Uppsala, Sweden; 3 University of Melbourne, Melbourne, Australia; 4 VU University Medical Center, Amsterdam, Netherlands * Corresponding author. Rationale: A previous meta-analysis revealed a prevalence of 19% frailty and 2.3% malnutrition in community-dwelling older adults (1). Of those with malnutrition, 68% were also frail, whereas only 8.4% of frail older people were also malnourished. A new meta-analysis in hospitalised older adults examining the overlap in prevalence of (risk of) malnutrition and (pre-)frailty, and the overlap in prevalence of (risk of) malnutrition and sarcopenia has been undertaken. Preliminary data are presented. Methods: A systematic literature search resulted in a selection of 29 papers on (risk of) malnutrition and frailty and 20 papers on (risk of) malnutrition and sarcopenia. Available data were used to report the overall and overlapping prevalence of (risk of) malnutrition and (pre-) frailty, and prevalence of (risk of) malnutrition and sarcopenia. The association between (risk of) malnutrition and (pre-)frailty or sarcopenia was determined with Odds ratios. Results: Pooled data revealed that 67% [95% CI: 59, 74%] of older, hospitalized adults were (at risk of being) malnourished, 82% [95% CI: 75, 90%] were (pre-)frail and 37% [95% CI: 26, 48%] had sarcopenia. Furthermore, a high overlapping prevalence and concomitant Odds Ratio was observed for (risk of) malnutrition and (pre-)frailty (50%; OR: 5.24 [95% CI: 3.58, 7.67]) and for (risk of) malnutrition and sarcopenia (42%; 4.06 [95% CI: 2.16, 6.80]). Also, 89% and 55% of those with (risk of) malnutrition were frail or sarcopenic, respectively, and 61% of the frail and 89% of those with sarcopenia were (at risk of being) malnourished. Conclusion: The prevalence and overlap of (risk of) malnutrition and (pre-)frailty or sarcopenia in hospitalized older adults was observed to be substantial, indicating that most older adults suffer from two and perhaps even three of these geriatric syndromes. This supports the importance of screening for these syndromes before or at hospital admission to guide intervention and nutritional support. Reference 1. Verlaan S, Ligthart-Melis GC, Wijers SLJ, Cederholm T, Maier AB, de van der Schueren MAE. High Prevalence of Physical Frailty Among Community-Dwelling Malnourished Older Adults-A Systematic Review and Meta-Analysis. J Am Med Dir Assoc. 2017;18(5):374–82. Disclosure of Interest: None declared. MON-LB688 NECK CIRCUMFERENCE IS INDEPENDENTLY ASSOCIATED WITH OBESITY IN FEMALE EMIRATI STUDENTS D. Papandreou 1* , Z. Taha 1 , M. Abboud 2 . 1 Department of Health, Zayed University, Abu Dhabi; 2 Department of Health, Zayed University, Dubai, United Arab Emirates * Corresponding author. Rationale: Neck circumference is a new tool that has been linked to obesity. However, no studies in UAE have been conducted yet. The purpose of this study was to measure the obesity levels in a college population and to correlate them with NC and other anthropometrical indexes. Methods: Three hundred and fifty-five female students aged 18–24 were conveniently selected to participate in the study. Anthropometrical indexes were obtained from all subjects after 12-h fasting. NC was measured with a regular plastic tape to the nearest 0.5 mm. Statistical significance was considered for P < 0.05. Results: Eighty-five out of 355 female college students (23.9%) were overweight (OW) and obese (OB). The OW/OB group had significantly important higher levels (p < 0.001) of waist Circumference (WC), Free fatty mass (FFM) and neck circumference (NC), P < 0.021 compared to the normal group. In Pearson Correlation, NC (r = 0.881), WC (r = 0.712) and BF (r = 0.732) were significantly (P < 0.001) strongly positively correlated with obesity. In multiple regression analysis, NC (Beta: 2.12; 0.85,2.32) and WC (Beta: 1.21; 077,1.98) were significantly (P < 0.001) independently associated with obesity. Conclusion: Neck circumference is a new tool that may be used safely to measure neck fatness levels. In addition, NC was found to be independently associated with obesity levels in Emirati college students. More extended studies including datafrom all Emirates are necessary for the development of cut off references and the possible associations with CV risk factors that may lead to health problems for obese people later in their life. Reference Ben-Noun L, Sohar E, Laor A. Neck circumference as a simple screeningmeasure for identifying overweight and obese patients. Obesity Research 2001; 9 (8): 470–477. Disclosure of Interest: None declared. MON-LB689 PREVALENCE OF HOSPITAL MALNUTRITION AND DURATION OF HOSPITALIZATION INA SECOND LEVEL HOSPITAL M. Riestra 1,2* , A. Sánchez Hernández 3 , B. Veiguela Blanco 1 , C. Suarez- Coalla 1 , S. González Martínez 1 , L. Díaz Naya 1 , A. Arias Magadan 4 , G. Gutiérrez Buey 1 . 1 Endocrinology and Nutrition, Hospital Universitario of Cabueñes, Gijon; 2 Instituto de Investigación Sanitaria del Principado de Asturias, FINBA, Oviedo; 3 Centro de Salud de Contrueces; 4 Centro de Salud La calzada, Gijon, Spain * Corresponding author. Rationale: Hospital malnutrition is associated with greater risk of morbidity and mortality. The aim of the study was to determine the prevalence of nutritional risk in patients hospitalised in a second level hospital in Spain. Methods: Cross-sectional, observational study in a period of 5 consecutive days, assessing the prevalence of malnutrition at patient admission using Malnutrition Universal Screening Tool (MUST). Exclusion criteria were patients <18 years old, pregnancy and ICU. For statistical analysis SPSS v20 was used Results: 111 patients were included, 53.8% males, mean age 67.1 years (SD 18). 51.4% were >70 years. Mean BMI 27.07 Kg/m 2 (SD 5.1). Using MUST the prevalence of malnutrition was 28.8% (13.5% medium risk and 15.5% high risk). Mean duration of hospitalizationwere greater in patients at high risk (9 days, 95% confidence interval (CI) 4.3–13.7), than in low and medium risk patients (5.9 days, 95% CI 4.7–7.2), p < 0.009. 25.3% of patients at high risk died during the 30 days posthospitalization, comparing to 10% of patients in the other groups (p < 0.001). Only 1.8% af all (2 patients) received a nutritional support at admission. Conclusion: This study shows that hospital malnutrition is a prevalent condition in hospitalized patients that is associated with longer hospital stays and double risk of death. Nutritional support strategies are needed at admission. S315 Abstracts / Clinical Nutrition 38 (2019) S297–S322