β=0.8 β=0.9
  κ=2.3 ρ=0.698
Δa image 1-P0 ELc Medd image 1-P0 ELc Medd
Initial Screening Age t0=40
1 Year 15.3 84.7 2.09 4.5 12.65 87.35 1.69 4.4
2 Years 40.08 59.92 0.73 4.1 35.27 64.73 0.75 4.2
Initial Screening Age t0=50
1 Year 15.3 84.7 3.08 2.1 12.55 87.45 1.9 2
2 Years 39.5 60.5 1.29 2.1 34.69 65.31 1.7 2
Initial Screening Age t0=60
1 Year 15.42 84.58 3.29 1.7 12.51 87.49 2.97 1.6
2 Years 38.87 61.13 1.6 1.7 34.03 65.97 1.66 1.6
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 5: A projection of the lead time distribution for women when mean sojourn time=2 years.