ALB and diabetes mellitus: In comparison to the Quantile1 group, the Quantile2, Quantile3, and Quantile4 groups exhibited distinct characteristics: They are younger in terms of age; Their BMI values were higher; A higher percentage of females was observed in terms of gender composition; The proportion of White individuals was lower; There was a reduced percentage of individuals with diabetes duration exceeding 10 years; A higher percentage without using glucose-lowering drugs or insulin; Regarding laboratory indicators, there were higher levels of albumin, lymphocytes, and ALT, lower levels of neutrophils, NLR, and Cr.