HNF1A and type 2 diabetes mellitus: GCK‐MODY patients had lower hsCRP compared to type 2 diabetes patients (SMD −0.60 [95% CI −0.75, −0.44] mg/l, p < .001, n = 4; I2 = 13%, Ph = .33), regardless of patient type, but for HNF1A‐MODY studies there was no distinct difference in hsCRP compared to HNF1A‐MODY (SMD 0.31 [95% CI −0.25, 0.87] mg/l, p = .27, n = 3; I2 = 78%, Ph = .01).