The main goal of cervical screening programs is to detect and treat precancer before cancer develops. Human papillomavirus (HPV) testing is more sensitive than cytology for detecting precancer. However, reports of rare HPV-negative, cytology-positive cancers are motivating continued use of both tests (cotesting) despite increased testing costs.

中文翻译：

---

宫颈癌筛查中HPV和细胞学成分的相对测试

子宫颈筛查计划的主要目标是在癌症发展之前检测和治疗癌症前期疾病。人乳头瘤病毒（HPV）检测比细胞学检测前癌更为敏感。然而，尽管检测成本增加，但罕见的HPV阴性，细胞学阳性的癌症的报道正在促使人们继续使用这两种检测方法（共同检测）。