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.
Like - Click this link to Add this page to your bookmarks Share - Click this link to Share this page through email or social media Print - Click this link to Print this page. A defined benefit retirement plan provides a benefit based on a fixed formula. Choose a Defined Benefit Plan. A defined benefit retirement plan provides a benefit based on a fixed formula. Choose a  Learn the basics of defined benefit plans.