Prognostic nutritional index as a predictor of mortality in nontuberculous mycobacterial lung disease

The prevalence of nontuberculous mycobacterial lung disease (NTM-LD) is increasing every year (1). Malnutrition is often found in advanced NTM-LD (2). The prognostic nutritional index (PNI) and Glasgow Prognostic Score (GPS) are known as indicators related to nutrition. In tuberculosis, the serum albumin level and PNI score are associated with the cavitation (3). Moreover, the GPS, which is a prognostic indicator for malignant tumors, predicts the prognosis of idiopathic pulmonary fibrosis (4), but there are no reports on the association between these indicators and NTM-LD. We statistically analyzed the association between these indicators and the prognosis of NTM-LD