Abstract: Objective In order to study the dietary nutritional status of patients with type 2 diabetes mellitus (T2DM) and those complicated with pulmonary tuberculosis (T2DM-PTB),and to analyze the differences in dietary nutrient intake. Methods Using simplified Food Frequency Questionnaire (FFQ) method, a dietary survey was conducted in patients with T2DM (n=140) in the Department of Endocrinology, the First Affiliated Hospital of Harbin Medical University, and patients with T2DM-PTB (n=140) who were hospitalized in the Heilongjiang Province Infectious Disease Prevention and Treatment Hospital from January 2017 to July 2017. Results Energy intakes per day was (8444.5±1507.1) kJ in patients with T2DM and (6424.9±2032.2) kJ in patients with T2DM-PTB, respectively (t=6.93, P=0.000). The intake of protein was (81.9±9.9) g and (57.3±18.5) g, respectively (t=9.78, P=0.000). The intake of fat was (63.2±35.7) g and (51.7±27.7) g, respectively (t=2.12, P=0.036). Carbohydrate intake was (280.5±33.3) g and (210.3±40.3) g, respectively (t=11.23, P=0.000). The iron intake was (24.5±4.7) mg and (15.9±3.9) mg, respectively (t=11.80, P=0.000). The intake of zinc was (11.8±1.7) mg and (8.3±2.1) mg, respectively (t=10.93, P=0.000). The selenium intake was (40.5±7.1) mg and (36.6±14.0) mg, respectively (t=2.07, P=0.041). Calcium intake was (518.3±121.2) mg and (393.4±127.9) mg, respectively (t=5.93, P=0.000). Intake of vitamin A was (428.0±172.9) μg retinol equivalent (μg RE) and (346.8±145.5) μg RE, respectively (t=3.01, P=0.003). The intake of vitamin D was (1.9±0.9) μg and (3.8±4.5) μg, respectively (t=-3.19, P=0.001). The intake of vitamin E was (25.7±17.1) mg and (18.7±12.5) mg, respectively (t=2.75, P=0.007). The intake of vitamin B1 was (1.2±0.2) mg and (0.8±0.2) mg, respectively (t=10.92, P=0.005). The intake of vitamin B2 was (0.9±0.1) mg and (0.7±0.3) mg, respectively (t=7.07, P=0.000). The intake of vitamin B6 was (0.4±0.2) mg and (0.2±0.1) mg, respectively (t=8.28, P=0.000). Conclusion The dietary nutritional status of T2DM-PTB patients was worse than that of T2DM patients. Both T2DM-PTB and T2DM patients should increase the intake of foods rich in vitamins and trace elements.

Key words: Diabetes mellitus, type 2, Tuberculosis, pulmonary, Comorbidity, Diet surveys, Data interpretation, statistical