Table 3.
Diagnostic mammography after DCIS excision by year of follow-up*
| Year of follow-up | Total No. of women | 0 diagnostic mammograms, % | At least one diagnostic mammogram, No. (%) | 1 diagnostic mammogram, % | 2-4 diagnostic mammograms, % | Diagnostic mammograms, total (mean per patient) |
| 1 (0–6 mo) | 2948 | 92.7 | 214 (7.3) | 6.5 | 0.8 | 241 (0.08) |
| 1 (7–12 mo) | 2937 | 94.7 | 157 (5.3) | 4.9 | 0.5 | 171 (0.06) |
| 2 | 2821 | 88.6 | 321 (11.4) | 8.9 | 2.5 | 398 (0.14) |
| 3 | 2593 | 93.8 | 162 (6.2) | 5.3 | 0.9 | 186 (0.07) |
| 4 | 2296 | 95.8 | 97 (4.2) | 3.6 | 0.6 | 112 (0.05) |
| 5 | 1813 | 95.1 | 89 (4.9) | 4.2 | 0.7 | 105 (0.06) |
| 6 | 1378 | 95.6 | 60 (4.4) | 3.8 | 0.6 | 69 (0.05) |
| 7 | 1051 | 96.4 | 38 (3.6) | 3.3 | 0.3 | 42 (0.04) |
| 8 | 879 | 95.7 | 38 (4.3) | 4.0 | 0.3 | 41 (0.05) |
| 9 | 752 | 96.1 | 29 (3.9) | 3.3 | 0.5 | 34 (0.05) |
| 10 | 571 | 96.5 | 20 (3.5) | 3.0 | 0.5 | 23 (0.04) |
*
N = 2948. DCIS = ductal carcinoma in situ.