CD4 and osteomyelitis: In the maturation stages of the T cell group, herpesvirus-entry mediator (HVEM) on T cell (p = 0.028, OR = 1.161, 95%CI = 1.016–1.328) showed a positive causal relationship with the development of osteomyelitis, and CD3 on delayed reaction T cell (TD) CD4+ (p = 0.047, OR = 0.873, 95%CI = 0.764–0.998) showed a negative causal relationship with the development of osteomyelitis.