Table 3.
Number and Percentage of Women Who Received a Surveillance Mammogram in the Year Preceding a Second Breast Cancer Event (by stage) and a Comparable Reference Datea for women without a recurrence or second primary stratified by women who died of breast cancer, had no death and who died of other-than breast cancer at 10 Years and 15 years
10 Year Outcomes | 15 Year Outcomes | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Death | Death | |||||||||||
Event type | Alive | Breast Cancer | Other than breast-cancer | Alive | Breast Cancer | Other than breast-cancer | ||||||
N | % | N | % | N | % | N | % | N | % | N | % | |
Recurrence | ||||||||||||
Local | 7 / 15 | 47 | 1 / 1 | 100 | 1 / 3 | 33 | 7 / 11 | 64 | 1 / 2 | 50 | 0 / 1 | 0 |
Regional | 7 / 8 | 88 | 1 / 2 | 50 | - | - | 2 / 3 | 67 | 3 / 4 | 75 | - | - |
Distant | 10 / 19 | 53 | 14 / 20 | 70 | 7 / 10 | 70 | 4 / 6 | 67 | 2 / 7 | 29 | 1 / 2 | 50 |
Missing | 1 / 1 | 100 | ||||||||||
Second Primary | ||||||||||||
Stage I or II | 13 / 19 | 68 | - | - | 2 / 2 | 100 | 11 / 15 | 73 | - | - | - | - |
Stage III or IV | - | - | - | - | - | - | - | - | - | - | - | - |
Unstaged | 1 / 2 | 0 | 1 / 1 | 100 | 1 / 1 | 100 | 2 / 2 | 100 | 1 / 1 | 100 | 1 / 1 | 100 |
Disease-freea | 519 / 878 | 59 | 13 / 42 | 31 | 62 / 212 | 29 | 269 / 642 | 42 | 3/ 40 | 8 | 31 / 161 | 19 |
For women without a second breast event, we used the median time to event for women with a second breast event (date of initial diagnosis+5 years+667.75 days) in years 6–10 as the time point from which to look back one year for receipt of surveillance exam; the same approach was used for years 11–15 (date of diagnosis+10 years+640 days).