van der Graaf Y, Vooijs G P, Gaillard H L, Go D M
Acta Cytol. 1987 Jul-Aug;31(4):434-8.
A total of 555 cervical smears, originally classified as Papanicolaou classes I and II, from women in whom three years later cytologic findings consistent with moderate dysplasia, severe dysplasia, carcinoma in situ and invasive cancer were diagnosed were reviewed in order to estimate the screening error. The initial diagnosis proved to be underestimated in 17.5% of the smears. The two diagnoses correlated in 70.2% of the smears while 12.3% of the smears that contained no abnormality were judged to be inadequate for making a diagnosis, probably representing sampling errors. Quality-control measures to reduce these errors are briefly summarized.
对555份最初被归类为巴氏I级和II级的宫颈涂片进行了复查，这些涂片来自于三年后被诊断为中度发育异常、重度发育异常、原位癌和浸润癌的女性，以评估筛查误差。结果发现，17.5%的涂片最初诊断被低估。70.2%的涂片两种诊断结果相符，而12.3%无异常的涂片被判定为诊断不充分，这可能代表抽样误差。简要总结了减少这些误差的质量控制措施。
