Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Model estimates of breast cancer screening and progression parameters in women aged 40 to 49 years
| Parameter | Estimate | |
|---|---|---|
| Median | 95% CI | |
| Screening test sensitivity (%) | ||
| Invasive | 90.0 | (72.0-98.9) |
| In-situ | 81.7 | (43.4-99.0) |
| Mean sojourn time (years) | ||
| Invasive | 0.84 | (0.64-1.21) |
| Progressive in situ | 0.11 | (0.05-0.19) |
| Non-progressive in situ | 1.29 | (0.41-3.44) |
| % of screen-detected in situ that is non-progressive | ||
| Prevalent screen | 55 | (25-77) |
| Incident screens | 40 | (22-60) |
