This prospective cohort study was conducted in eighteen Canadian hospitals with the aim of examining factors associated with nutritional decline in medical and surgical patients. Nutritional decline was defined based on subjective global assessment (SGA) performed at admission and discharge. Data were collected on demographics, medical information, food intake and patients' satisfaction with nutrition care and meals during hospitalisation; 424 long-stay (≥7 d) patients were included; 38 % of them had surgery; 51 % were malnourished at admission (SGA B or C); 37 % had in-hospital changes in SGA; 19·6 % deteriorated (14·6 % from SGA A to B/C and 5 % from SGA B to C); 17·4 % improved (10·6 % from SGA B to A, 6·8 % from SGA C to B/A); and 63·0 % patients were stable (34·4 % were SGA A, 21·3 % SGA B, 7·3 % SGA C). One SGA C patient had weight loss ≥5 %, likely due to fluid loss and was designated as stable. A subset of 364 patients with admission SGA A and B was included in the multiple logistic regression models to determine factors associated with nutritional decline. After controlling for SGA at admission and the presence of a surgical procedure, lower admission BMI, cancer, two or more diagnostic categories, new in-hospital infection, reduced food intake, dissatisfaction with food quality and illness affecting food intake were factors significantly associated with nutritional decline in medical patients. For surgical patients, only male sex was associated with nutritional decline. Factors associated with nutritional decline are different in medical and surgical patients. Identifying these factors may assist nutritional care.
Key words: Nutritional decline: Hospital malnutrition: Food intake: Meal satisfactionThe prevalence of hospital malnutrition is reported to be between 15 and 70 % (1-9) depending on types of institutions and nutritional measurements. Regardless of prevalence, malnutrition negatively affects clinical outcomes and increases healthcare costs (9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) independently of other factors. Patients are often admitted malnourished, and pre-admission factors associated with this can be underlying illnesses, ageing and socio-economic situations (9,20,21) . In-hospital factors may also be associated with the presence of hospital malnutrition and are related to age, underlying disease, polypharmacy, infections, procedures that impact food intake, lack of monitoring of nutritional status and lack of standardised nutrition-care protocols (5,8,(20)(21)(22) . However, except for one report (22) , all these studies were cross-sectional, assessing nutritional status at one time point during hospitalisation and change over time was not assessed. Kondrup et al. (22) reported on the distribution of weight gain and weight loss from admission to discharge but did not rigorously assess potentially associated factors, other * Corresponding author: Dr J. P. Allard, fax +1 416 348 0065, email johane.allard@uhn.on.ca Abbreviations: CCI, Charlson Comorbidity Index; ICU, intensive c...