In addition, higher levels of total primary BAs (β per SD increment: 2.09; 95% CI: 0.63–3.56), CA (β per SD increment: 2.75; 95% CI: 1.30–4.20) and CDCA (β per SD increment: 2.52; 95% CI: 1.06–3.97) were associated with higher levels of eGFR at baseline among patients with newly diagnosed T2D, while the association with GCA and GCDCA were not statistically significant (Table 2). Here, GCA is linked to type 2 diabetes mellitus.