Table 1 Results of screening for breast cancer with mammography from 2009 to 2014
| Â | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No | % | No | % | No | % | No | % | No | % | No | % | |||
Total participants | 2,977,041 | 100.0 | 2,907,964 | 100.0 | 3,359,526 | 100.0 | 3,334,657 | 100.0 | 3,291,981 | 100.0 | 3,564,681 | 100.0 | ||
Results of screening | Negative | Subtotal | 2,469,917 | 83.0 | 2,473,581 | 85.1 | 2,874,166 | 85.6 | 2,843,801 | 85.3 | 2,817,325 | 85.6 | 3,035,615 | 85.2 |
Normal | 2,163,673 | 87.6 | 2,121,346 | 85.8 | 2,465,337 | 85.8 | 2,426,471 | 85.3 | 2,378,842 | 84.4 | 2,560,714 | 84.4 | ||
Benign lesion | 306,244 | 12.4 | 352,235 | 14.2 | 408,829 | 14.2 | 417,330 | 14.7 | 438,483 | 15.6 | 474,901 | 15.6 | ||
Positive | Subtotal | 507,124 | 17.0 | 434,383 | 14.9 | 485,360 | 14.4 | 490,856 | 14.7 | 474,656 | 14.4 | 529,066 | 14.8 | |
Suspected breast cancer | 6,249 | 1.2 | 5,384 | 1.2 | 5,588 | 1.2 | 5,253 | 1.1 | 4,762 | 1.0 | 4,649 | 0.9 | ||
Deferred | 500,875 | 98.8 | 428,999 | 98.8 | 479,772 | 98.8 | 485,603 | 98.9 | 469,894 | 99.0 | 524,417 | 99.1 | ||
Age | 40–49 | Subtotal | 1,014,401 | 34.1 | 987,795 | 34.0 | 1,069,780 | 31.8 | 1,036,136 | 31.1 | 1,023,722 | 31.1 | 1,084,874 | 30.4 |
Negative | 763,858 | 75.3 | 775,653 | 78.5 | 853,005 | 79.7 | 823,571 | 79.5 | 825,570 | 80.6 | 866,479 | 79.9 | ||
Positive | 250,543 | 24.7 | 212,142 | 21.5 | 216,775 | 20.3 | 212,565 | 20.5 | 198,152 | 19.4 | 218,395 | 20.1 | ||
50–59 | Subtotal | 941,260 | 31.6 | 922,458 | 31.7 | 1,133,029 | 33.7 | 1,098,477 | 32.9 | 1,082,582 | 32.9 | 1,146,449 | 32.2 | |
Negative | 775,482 | 82.4 | 783,436 | 84.9 | 966,230 | 85.3 | 930,045 | 84.7 | 919,229 | 84.9 | 967,212 | 84.4 | ||
Positive | 165,778 | 17.6 | 139,022 | 15.1 | 166,899 | 14.7 | 168,432 | 15.3 | 163,353 | 15.1 | 179,237 | 15.6 | ||
60–69 | Subtotal | 643,458 | 21.6 | 615,546 | 21.2 | 698,331 | 20.8 | 716,442 | 21.5 | 697,346 | 21.2 | 794,659 | 22.3 | |
Negative | 575,039 | 89.4 | 555,855 | 90.3 | 627,843 | 89.9 | 640,571 | 89.4 | 621,607 | 89.1 | 705,162 | 88.7 | ||
Positive | 68,419 | 10.6 | 59,691 | 9.7 | 70,488 | 10.1 | 75,871 | 10.6 | 75,739 | 10.9 | 89,497 | 11.3 | ||
Over 70 | Subtotal | 377,922 | 12.7 | 382,165 | 13.1 | 458,386 | 13.6 | 483,602 | 14.5 | 488,331 | 14.8 | 538,699 | 15.1 | |
Negative | 355,538 | 94.1 | 358,637 | 93.8 | 427,088 | 93.2 | 449,614 | 93.0 | 450,919 | 92.3 | 496,762 | 92.2 | ||
Positive | 22,384 | 5.9 | 23,528 | 6.2 | 31,298 | 6.8 | 33,988 | 7.0 | 37,412 | 7.7 | 41,937 | 7.8 | ||