Assessment of Nutritional Risk Screening 2002 as Predictors of Long Hospital Stay in Patients with Upper Gastrointestinal Diseases

Why It Matters

Early identification of nutritional risk enables targeted interventions that can shorten stays, improve patient outcomes, and reduce hospital resource consumption.

Key Takeaways

• NRS2002 ≥ 2 predicts prolonged stay in UGI patients
• Serum albumin inversely linked to length of hospital stay
• Study of 896 patients shows AUC 0.721 for NRS2002
• Older age and lower BMI associated with longer admissions
• Routine admission screening could enable early nutritional interventions

Pulse Analysis

Malnutrition is a silent driver of poorer outcomes in patients with upper gastrointestinal disorders, where reduced oral intake, catabolic stress, and procedural fasting are common. Studies across China report that up to 30% of hospitalized patients face nutritional risk, a figure that climbs dramatically among the elderly and those with cancer. The resulting deficits not only impair wound healing and immunity but also inflate the length of hospital stay (LOHS), a key metric of both care quality and cost efficiency. Understanding these dynamics is essential for health systems seeking to balance clinical excellence with fiscal responsibility.

The Nutritional Risk Screening 2002 (NRS2002) offers a rapid, low‑burden method to flag at‑risk individuals. In the recent single‑center analysis of 896 UGI admissions, an NRS2002 score of ≥ 2 emerged as the optimal threshold for predicting LOHS beyond the 75th percentile, achieving an AUC of 0.721—substantially higher than the traditional cutoff of ≥ 3 used in broader populations. Serum albumin, a classic marker of protein status, also proved protective, with each gram per liter increase lowering the odds of a prolonged stay. These findings underscore that even modest elevations in nutritional risk scores translate into measurable extensions of hospitalization.

For hospital administrators and clinicians, the practical takeaway is clear: integrating NRS2002 screening into the admission workflow can spotlight patients who would benefit from early dietitian referral, oral supplementation, or enteral nutrition. Proactive nutritional support has been shown to cut infection rates and accelerate recovery without adding significant cost, thereby freeing beds and enhancing patient satisfaction. Future multicenter, prospective trials should test whether such interventions directly shorten LOHS in the UGI cohort, but the current evidence already makes a compelling case for routine nutritional assessment as a standard of care.