β=0.8 β=0.9
  κ=2.3 ρ=0.1395
Δa image 1-P0 ELc Medd image 1-P0 ELc Medd
Initial Screening Age t0=40
1 Year 1.02 98.98 6.9 4.6 0.64 99.36 7.09 4.4
2 Years 3.59 96.41 4.25 4.3 2.53 97.47 1.39 4.2
Initial Screening Age t0=50
1 Year 1.42 98.58 9.27 3.6 0.8 99.2 9.65 3.5
2 Years 4.14 95.86 6.31 3.3 2.72 97.28 2.32 3.2
Initial Screening Age t0=60
1 Year 2.06 97.94 9.29 3.2 1.09 98.91 9.7 3.1
2 Years 5.07 94.93 6.8 2.9 3.09 96.91 2.8 2.8
aTime between screenings (ti–ti-1)
bP0=P(L=0|D=1)=Probability of no early detection (%)
cThe mean lead time is in years
dThe median when L>0 (for non-interval cases)
Table 6: A projection of the lead time distribution for women when mean sojourn time=10 years.