Research Article
Evaluating Surveillance Breast Imaging and Biopsy in Older Breast Cancer Survivors
Table 2
Women's characteristic and mammographic rates for each surveillance window.
| | | Surveillance windows | |
| 24 months | 42 months | 60 months | 78 months |
| Numerator (): number women who have an event
| 1088 | 774 | 518 | 296 | Denominator (): number of women in surveillance window
| 1219 | 895 | 619 | 363 | | Overall rate (%) | 89.3% | 86.5% | 83.7% | 81.5% |
| | Characteristic | Rate % | Rate % | Rate % | Rate % |
| | Age at diagnosis (years) | | | | | | 65–69 |
88.0
|
86.5
|
87.1
|
86.0
| | 70–74 |
92.9
|
91.2
|
86.5
|
85.4
| | 75–79 |
89.2
|
87.2
|
86.2
|
81.0
| | 80+ |
85.4
|
78.0
|
69.2
|
63.3
| | Stage at diagnosis | | | | | | I |
91.3
|
88.7
|
86.2
|
84.5
| | DCIS |
91.0
|
85.6
|
85.0
|
82.4
| | IIA |
85.7
|
85.9
|
79.8
|
75.0
| | IIB |
78.5
|
75.6
|
75.0
|
78.6
| | III |
81.1
|
69.6
|
40.0
|
50.0
| | Primary therapy | | | | | | Mastectomy |
90.6
|
85.9
|
82.6
|
79.3
| | Breast conserving surgery with radiation |
97.3
|
97.7
|
97.8
|
95.4
| | Breast conserving surgery |
88.0
|
88.1
|
79.2
|
88.9
| | Unknown/other |
59.0
|
69.0
|
73.3
|
76.2
| | Family history of breast cancer | | | | | | No |
88.7
|
86.2
|
82.6
|
80.3
| | Yes |
90.8
|
87.2
|
86.5
|
84.9
| | Unknown |
85.7
|
100.0
|
100.0
| NA | | Comorbidities | | | | | | 0 |
87.8
|
87.9
|
84.8
|
81.3
| | 1 |
91.6
|
84.5
|
81.5
|
79.4
| | 2+ |
93.2
|
80.3
|
79.6
|
90.9
| | Education | | | | | | High school |
87.6
|
83.9
|
73.7
|
85.3
| | High school/GED |
88.9
|
87.8
|
88.2
|
87.4
| | Some college |
90.1
|
87.3
|
82.1
|
77.2
| | College+ |
89.4
|
88.6
|
87.1
|
83.3
| | Unknown |
89.8
|
77.1
|
72.1
|
58.1
|
|
|
