CD226 and latent autoimmune diabetes in adults: The frequency of CD226+ B cells was positively related to FBG (r = 0.77, P < 0.01), HbA1c (r = 0.71, P < 0.01) and GA levels (r = 0.49, P < 0.05), and negatively related to FCP levels (r = −0.49, P < 0.05) in LADA patients (Fig. 1g–j; Supplementary Fig. S1a–d).