In addition, we observed possibly significant interactions between chemicals in the mixture of PCPPCs; particularly, there were possible bi-interactions between MBzP and each of MCOP, MeP, MiBP, MEHHP, MCPP, BPA, and 2,5-DCP; MCOP and each of MiBP, MiBP, MeP, MEHHP, MCPP, BPA, and 2, 5-DCP; MeP and each of MiBP, MEHHP, MCPP, BPA, and 2, 5-DCP in females, and some of these bi-interactions were observed in participants with no general obesity and those with abdominal obesity (Figures S4–S9). The gene discussed is NMRK2; the disease is Abdominal obesity.