[Methods of evaluating the incidence of pregnancy complications in relation to pregnancy trimester]

Some pregnancy complications depend on its term. The frequency of spontaneous abortions, hypertension, urinary infections, toxoplasmosis, cardiovascular diseases tend to decrease in relation to the term of pregnancy. The analytical equations based on this tendency make a good approximation and can be used for extrapolation in estimating projections of pathological conditions at different terms of pregnancy.