ALB and type 2 diabetes mellitus: In a binary logistic regression model, 14 factors with significant differences between male patients and female patients in univariate analysis, including age, BMI, smoking, biomass fuel exposure, lung function (GOLD stages), CAD, T2DM, PaO2, lymphocytes%, serum K+, serum Ca2+, ALB, BUN, and serum Cr were included.