Of Statistics And Life

Let's start with 10000 pregnant woman.

10-25% of them will end up with a miscarriage (we'll take an average of 15%).
Which leaves 8500 viable pregnancies.
There is an average of 8 deaths per 1000 life births.
We now have 8432 babies who survived their 1st week of life.

1:800-1:1000 of these pregnant women will deliver to a baby with Down's syndome.
That leaves about 8424 babies.

About 1:2500 babies will be born with Turner's syndrome.
We are left with 8420.

1:700 will be born with cleft palate.
8408 left.

1:120 will be born with a heart disease.
There's 8338 healthy babies so far.

Spina bifida 1-2:1000.
8324.

1-2 out of 1000 are born autistic.
8312.

There is a long list of other congenital disorders - more than a hundred.
We'll give an average of 1:1000 of each of these disorders.
8212 healthy babies.

8212 healthy babies from 10000 pregnancies.
82 out of 100.
8 out of 10.
4 out of 5.

A father, a mother and their 3 children.
That is 5 people.
1 out of 5 babies are not born, or are born with some anomaly.

Aren't we lucky to not be that 1?

p/s - All the information here are those that I got off the net. I have no idea how trust-able it is.