The efficacy of HPV vaccine in preventing cervical cancer has been demonstrated in numerous clinical trials and clinical uses. The follow-up after clinical trials usually last for 5-6 years to evaluate the long-term efficacy, and a series of long-term follow-up studies have been conducted in some regions. The literature retrieval of HPV vaccine long term efficiency research both at home and abroad indicated that the protective efficacy of the vaccine against vaccine-type-related cervical intraepithelial neoplasia grade 2 and above is higher than 90%.
HPV疫苗对宫颈癌的预防作用已经在众多临床试验和真实世界中得到验证。其中试验人群的随访年限一般为5~6年。临床试验结束后，为了验证疫苗的长期有效性，部分地区开展了系列长期随访研究，本文检索了目前国内外对HPV疫苗长期保护效力相关研究。目前公开的数据显示对疫苗保护型别相关的宫颈上皮内瘤病变2级及以上保护效力均高于90%。.