Epidemiology

Question 1

Down Syndrome

Answer 1

Incidence per 1000:

<25 = 0.5
<30 = 0.7
<35 = 5
<40 = 25
<45 = 34.6

Question 2

ASD

Answer 2

Identical twins = 0.8

Non-identical siblings = 0.2

Second degree relatives = 0.04