CRP and lung carcinoma: In addition, many correlation studies on CRP and lung cancer have demonstrated that elevated CRP levels are associated with increased lung cancer risk (Chaturvedi et al., 2010; Ji et al., 2022), and it has been suggested that CRP is a pre-diagnostic marker for lung cancer (McDonald et al., 2019; Chaturvedi et al., 2010; Xiao et al., 2019; Muller et al., 2019).