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.
The best-known defined-contribution plan is the 401(k), and its equivalent for non-profits' workers, the 403(b). In common parlance, pension plan often means the more traditional defined-benefit plan, with a set payout, funded and controlled entirely by the employer. Some companies offer both types of plans. They even allow employees to roll over 401(k) balances into their defined-benefit plans.