Abstract
To eliminate the effect of competing mortality risks, so-called "net" probabilities are traditionally computed. The greater the annual probabilities of death for the competing cause, and the longer the period of follow-up, the greater the difference between the net and the "crude" probabilities of death. This paper presents a simple formula and table for estimating the net probability from the crude probability. In many practical situations, the net probabilities do not differ appreciably from the crude probabilities.