CRP and squamous cell carcinoma: In univariate analysis the CRP level was significantly associated with coronary heart disease (p < 0.0001), histology (squamous cell carcinoma; p = 0.013), tumor size (T1a; p = 0.018 and T2a; p = 0.002), tumor stage (p = 0.002), and vascular invasion (p = 0.017).