That is, less than one in 1,000 pregnancies for mothers less than 30 years of age results in a baby with Down syndrome. For mothers who are 44 years of age, about 1 in 35 pregnancies results in a baby with Down syndrome.
DEFINITION of 'Defined-Benefit Plan'. An employer-sponsored retirement plan where employee benefits are sorted out based on a formula using factors such as salary history and duration of employment.
How does a Defined Benefit Plan work? A defined benefit plan is a qualified retirement plan in which annual contributions are made to fund a chosen level of retirement income at a predetermined future retirement date. Contributions are made according to an actuarial formula to meet the target retirement income benefit.