Table 2.

Exponential fits to mortality data by estimator.

methodM(t)95% CI
Kaplan–Meier0.925 (1−e0.074t)[0.073, 0.076]
1975–20090.765 (1−e0.090T)[0.085, 0.095]
Nelson–Aalen0.921 (1−e0.072t)[0.071, 0.074]
1975–20090.759 (1−e0.088T)[0.083, 0.093]