Prognostic nutritional index predicts prognosis in patients with metastatic nasopharyngeal carcinoma.

Objective: This study aimed to investigate the prognostic value of Onodera's prognostic nutritional index (PNI) in patients with metastatic nasopharyngeal carcinoma (NPC).

Methods: A total of 187 patients with metastatic NPC treated with cisplatin-based chemotherapy were retrospectively reviewed. The PNI was calculated using the following formula: serum albumin level (gram per liter) +0.