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.
Choosing a Retirement Plan: Defined Benefit Plan. Defined benefit plans provide a fixed, pre-established benefit for employees at retirement. Employees often value the fixed benefit provided by this type of plan. On the employer side, businesses can generally contribute (and therefore deduct) more each year than in defined contribution plans.