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Background: The association between tuberculosis (TB) and malnutrition is well recognized. Considering the risk of mortality due to malnutrition in patients with TB, it is necessary to conduct a thorough nutrition assessment to identify individuals at nutrition risk. The study objective was to assess the nutrition status of hospitalized patients with TB, co-infected or not by human immunodeficiency virus (HIV)., Methods: Patients with confirmed diagnosis of TB were included using a cross-sectional design. Nutrition assessment parameters included: body mass index (BMI), triceps skin-fold thickness (TSF), bioelectrical impedance analysis (BIA), mid-upper-arm circumference (MUAC), mid-arm muscle circumference (MAMC), food frequency questionnaire, Malnutrition Screening Tool (MST), Subjective Global Assessment (SGA), and serum levels of hemoglobin., Results: A total 108 patients completed the study. Forty-four patients (40.7%) were HIV positive. Considering the BMI, 36.1% of the patients met the criteria for nutrition deficiency. Body fat percentage was low in 27.8% of patients. In addition, more than half of the participants met criteria for malnutrition according to MUAC, MAMC, TSF, SGA, or MST. Malnutrition measured by MAMC was more frequent in HIV-positive patients (n=33, 75.0%) than in HIV-negative patients (n=31, 48.4%) (P = 0.010). Regarding the components of diet, selenium and vitamin C intake among HIV-positive patients was significantly lower than in HIV-negative patients., Conclusions: We identified a high prevalence of malnutrition in hospitalized patients with pulmonary TB, regardless of the method used to assess nutrition status. In HIV-positive patients, malnutrition measured by MAMC was more frequent than in HIV-negative patients., (© 2018 American Society for Parenteral and Enteral Nutrition.)