Table 4 Model estimates of breast cancer screening and progression parameters in womenaged 40 to 49 years
Parameter | Estimate | |
|---|---|---|
| Â | Median | 95% CI |
Screening test sensitivity (%) | Â | |
Invasive | 90.0 | (72.0-98.9) |
In-situ | 81.7 | (43.4-99.0) |
Mean sojourn time (years) | Â | |
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 | Â | |
Prevalent screen | 55 | (25-77) |
Incident screens | 40 | (22-60) |