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.
Defined Benefit Plans Versus Defined Contribution Plans. Retirement plans may be categorized as either defined benefit plans or defined contribution plans. About Defined Benefit Plans. A defined benefit plan identifies the specific benefit that will be payable to you at retirement.