Patient-Generated Subjective Global Assessment (PG-SGA) predict Length of hospital stay in lung adenocarcinoma patients
The prevalence of malnutrition is high among oncology patients in Northern China. Malnutrition is related to the longer hospital stay, and it can be used to predict the prognostic outcome of patients. This work focused on investigating the relationship of nutritional condition with the length of hospital stay (LOS) in Northern Chinese patients with lung adenocarcinoma. The PG-SGA, Nutritional Risk Screening 2002 (NRS 2002) score, recent weight loss and BMI were assessed in a probabilistic sample of 389 lung adenocarcinoma patients without EGFR mutations. This study collected the demographic and clinical features of patients in a prospective manner. Then, we examined the association of nutritional status with LOS among the population developing lung adenocarcinoma. According to the PG-SGA, 63 (16.3%), 174 (44.7%) and 78 (20.1%) patients were at risk for undernutrition, moderate undernutrition and severe undernutrition, respectively. Nutritional risk was found in 141 (36.2%) patients based on the NRS 2002. The average LOS for tumor patients in Northern China was 12.5 days. At admission, a risk of undernutrition or undernutrition according to the PG-SGA (P<0.001), NRS 2002 (P<0.001), and latest weight loss (P<0.001) predicted the longer LOS. Length of stay was related to nutritional status and hospitalization expenses (P<0.001). Lung adenocarcinoma patients who stayed in the ICU had a poorer nutritional status and a longer LOS (P<0.001). In Northern Chinese patients with lung adenocarcinoma, a risk for undernutrition evaluated by the PG-SGA, the NRS2002 and recent weight loss, but not BMI, could predict a longer LOS.