Histological confirmation of breast cancer registration and self-reporting in England and Wales: a cohort study within the UK Collaborative Trial of Ovarian Cancer Screening

被引:4
作者
Fourkala, E. O. [1 ]
Gentry-Maharaj, A. [1 ]
Burnell, M. [1 ]
Ryan, A. [1 ]
Manchanda, R. [1 ]
Dawnay, A. [1 ]
Jacobs, I. [1 ]
Widschwendter, M. [1 ]
Menon, U. [1 ]
机构
[1] UCL, Gynaecol Canc Res Ctr, UCL EGA Inst Womens Hlth, London W1T 7DN, England
关键词
breast cancer; cancer registry; self-reporting; UKCTOCS; MEDICAL-RECORDS; VALIDITY; RELIABILITY; AGREEMENT;
D O I
10.1038/bjc.2012.155
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
BACKGROUND: In research studies, accurate information of cancer diagnosis is crucial. In women with breast cancer (BC), we compare cancer registration (CR) in England/Wales and self-reporting with independent confirmation. METHODS: In the UK Collaborative Trial of Ovarian Cancer Screening, notification of BC diagnosed between randomisation and 31 December 2009 was obtained through (1) CR (17 October 2011) and (2) self-reporting using postal-questionnaire. Breast cancer was confirmed using a detailed questionnaire (BC questionnaire BCQ) completed by the treating clinician (gold standard). Apparent sensitivity and positive-predictive value of CR/self-reporting vs BCQ were calculated. RESULTS: Of 1065 women with possible BC notification, diagnosis was confirmed in 932 (87.5%). A total of 3.1% (28 out of 918) of BC CR and 12.4% (128 out of 1032) of women with self-reported BC only had in-situ carcinoma on BCQ. Another 4.6% (43 out of 932) of BCQ-confirmed cancer did not have a BC registration, and 3.6% (34 out of 932) did not self-report BC. Apparent sensitivity of CR and self-reporting vs BCQ were 95.4 and 96.4%, respectively. Positive-predictive value of self-reporting (87.1%) was significantly lower than that of CR (96.8%). Women aged <65 were more likely to over report in-situ carcinoma as BC. Overall, 73 (6.8%) women would have been misclassified/missed if CR, and 167 (15.6%) if self-reporting data alone was used. CONCLUSION: This study confirms the reliability of BC registration in England/Wales and highlights the fact that 1 in 10 women self-reporting BC might only have in-situ breast carcinoma. British Journal of Cancer (2012) 106, 1910-1916. doi:10.1038/bjc.2012.155 www.bjcancer.com Published online 17 May 2012 (C) 2012 Cancer Research UK
引用
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页码:1910 / 1916
页数:7
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