OBJECTIVE: Current users of hormone therapy (HT) are known to have a lower accuracy of mammography screening than do never users. We studied whether the risk of misclassification depends on type of hormone, administration, regimen, and dose of the therapy. METHODS: We linked data from mammography screening registers with drug prescription registers from Fyn, Denmark to identify current and never HT users among screening participants. We compared false-positive risks and interval cancer proportions between current users of different HT preparations, taking women's age, breast density, screen number, and age of comparison mammogram into account. RESULTS: Estrogen therapy users had a significantly higher false-positive risk when the administration was by injection instead of oral (relative risk [RR], 2.37; 95% CI, 1.37-4.09). Women using sequential estrogen plus progestogen therapy had a significantly higher false-positive risk (RR, 1.94; 95% CI, 1.16-3.26) and a nonsignificantly higher interval cancer proportion (RR, 4.29; 95% CI, 0.69-26.53) when the administration of both hormones was transdermal instead of oral. Using tibolone instead of comparable hormones gave a nonsignificantly lower false-positive risk and a nonsignificantly higher interval cancer proportion. CONCLUSIONS: Our data showed increased risks of misclassification at mammography screening among women using estrogen injections or transdermal, sequential estrogen plus progestogen. Tibolone seems to offer no advantage regarding accuracy of screening mammography.
OBJECTIVE: Current users of hormone therapy (HT) are known to have a lower accuracy of mammography screening than do never users. We studied whether the risk of misclassification depends on type of hormone, administration, regimen, and dose of the therapy. METHODS: We linked data from mammography screening registers with drug prescription registers from Fyn, Denmark to identify current and never HT users among screening participants. We compared false-positive risks and interval cancer proportions between current users of different HT preparations, taking women's age, breast density, screen number, and age of comparison mammogram into account. RESULTS: Estrogen therapy users had a significantly higher false-positive risk when the administration was by injection instead of oral (relative risk [RR], 2.37; 95% CI, 1.37-4.09). Women using sequential estrogen plus progestogen therapy had a significantly higher false-positive risk (RR, 1.94; 95% CI, 1.16-3.26) and a nonsignificantly higher interval cancer proportion (RR, 4.29; 95% CI, 0.69-26.53) when the administration of both hormones was transdermal instead of oral. Using tibolone instead of comparable hormones gave a nonsignificantly lower false-positive risk and a nonsignificantly higher interval cancer proportion. CONCLUSIONS: Our data showed increased risks of misclassification at mammography screening among women using estrogen injections or transdermal, sequential estrogen plus progestogen. Tibolone seems to offer no advantage regarding accuracy of screening mammography.
Authors: Katja Kemp Jacobsen; Ellen S O'Meara; Dustin Key; Diana S M Buist; Karla Kerlikowske; Ilse Vejborg; Brian L Sprague; Elsebeth Lynge; My von Euler-Chelpin Journal: Int J Cancer Date: 2015-06-01 Impact factor: 7.396
Authors: Sara L Jackson; Linn Abraham; Diana L Miglioretti; Diana S M Buist; Karla Kerlikowske; Tracy Onega; Patricia A Carney; Edward A Sickles; Joann G Elmore Journal: AJR Am J Roentgenol Date: 2015-08 Impact factor: 3.959
Authors: Katja Kemp Jacobsen; Linn Abraham; Diana S M Buist; Rebecca A Hubbard; Ellen S O'Meara; Brian L Sprague; Karla Kerlikowske; Ilse Vejborg; My Von Euler-Chelpin; Sisse Helle Njor Journal: Cancer Epidemiol Date: 2015-05-23 Impact factor: 2.984
Authors: Marta Makara-Studzińska; Karolina Maria Kryś-Noszczyk; Artur Wdowiak; Marzena Kamińska; Szymon Bakalczuk; Grzegorz Bakalczuk Journal: Prz Menopauzalny Date: 2014-12-30