Preoperative nutrition score (NRS 2002) > or = 3 predicted more postoperative complications and longer length of hospital stay. It indicated that preoperative nutritional support was necessary in patients with a preoperative nutritional score (NRS 2002) > or = 3.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/20492337