Table 3 Estimates with and without ductal carcinoma in situ (DCIS)
From: Breast cancer tumor growth estimated through mammography screening data
Data used | Time taken (years) to grow from 10 mm to 20 mm | Volume doubling time (days) at 15 mm | Screening test sensitivity | Indicators of potential screening efficacy | |||||
|---|---|---|---|---|---|---|---|---|---|
Mean | Standard deviation | 25th percentile | 50th percentile | 75th percentile | 5 mm | 10 mm | Mean sojourn time (years) | Proportion of tumors visible on screening | |
With ductal carcinoma in situ | 1.7 | 2.2 | 41 | 99 | 234 | 26 | 91 | 2.9 | 0.95 |
Without ductal carcinoma in situ | 1.5 | 1.9 | 44 | 96 | 209 | 23 | 91 | 2.5 | 0.95 |