The XPG Asp1104Asp genotype was associated with a decreased risk of squamous cell carcinomas of the oropharyngeal oropharynx, larynxgeal, and oesophaguseal cancers (SCCOLE) (OR = 0.47, 95% CI 0.27–0.82) and for lung cancer (OR = 0.62, 95% CI 0.38–1.0) Here, ERCC5 is linked to squamous cell carcinoma.