RARRES2 and inflammatory bowel disease: The pooled results including six studies of 11 datasets suggested that patients with active IBD were associated with a higher blood level of chemerin compared to patients with non-active IBD (SMD: 0.36, 95% CI: 0.15 to 0.57, p < 0.001; Fig. 4A) with moderate heterogeneity (p for Cochrane Q test = 0.10; I2 = 38%).