Table 4: Accuracy of self-reported adherence to screening mammography guidelines among female relatives from the Ontario site of the Breast Cancer Family Registry.

Interview
BaselineYear 1Year 2

Self-reported mammogram within 12 months, (%)417 (80.8) 391 (94.4)416 (98.1)
 Imaging date within 12 months397 (95.2) 385 (98.5)415 (99.8)
 Imaging date > 12 months ago 20 (4.8) 6 (1.5) 1 (0.2)
Self-reported mammogram > 12 months ago, (%) 99 (19.2) 23 (5.6) 8 (1.9)
 Imaging date > 12 months ago 87 (87.9) 15 (65.2) 5 (62.5)
 Imaging date within 12 months 12 (12.1) 8 (34.8) 3 (37.5)

Women who self-reported the month and year of their last screening mammogram.