On performing simple linear regression using CTRP9 as the dependent variable and other biochemical parameters as the independent variables, CTRP9 was found to be significantly positively correlated with HDL-C and QUICKI while, significantly negatively correlated with other independent variables including; BMI, age, duration of diabetes, FBG, HbA1c %, TC, TG, LDL-C, TC/ HDL-C, HDL-C/LDL-C, HOMA-IR, CTRP3 and MCP-1/CCL2 [Table 2, Figs 4 and 5]. This evidence concerns the gene CCL2 and diabetes mellitus.