Figure 1From: Meta-analysis of the impact of human papillomavirus (HPV) on cancer risk and overall survival in head and neck squamous cell carcinomas (HNSCC)Meta-analyses for adjusted odds ratio (OR) for HPV as risk factor for HNSCC Risk for having HNSCC is increased with all types of high-risk HPV reported (A) and risk is even more pronounced in cases with HPV-16 infection versus HPV negative controls (B).Back to article page