ANTC67 – Lecture 11
Looking at age of death.
Most deaths from 25-35.
W shaped distribution.
Need reliable statistics.
What is interesting is that you think by 1918, there is an excellent
registration but that is not the case.
No information of high quality calibrate where we can do research.
Survivor ship curve.
By product of a life table.
Life table has many functions: 1) called life expectancy (ex).
This is lx.
We start off with a hypothetical cohort born in a year (1918) then
people begin to die.
Every year it passes from reference point and people die.
After 100 years no one is left and lx is 0.
Gradual lost due to deaths and that reduction occurs with mortality.
Above red line is the force of mortality.
Below are the survivors at a given point in time.
Tells about how much mortality is occurring and how rapid the decline
is. High steep line means fast deaths and low steep line means gradual
Greatest mortality is occurring usually at always under the age of 5 or
Tremendous loss in babies before 1.
Epidemic wave theory.
Understand what this graph means.
Know the name of the person who came up with this to explain the
evolution of something like tuberculosis over time.
The person’s name is Grigg.***
After how many generations would you expect mortality due to
tuberculosis to essentially become zero in a given society.
A generation is 30 years so after 10 generations its 0.
Comes through immigration or birth.
Remember that the pattern in most populations (not every population)
suggests there is difference between sexes and males suffer.
Recent evidence says that is not universal.
There is a timing in which death occurs. More males die and they die later.
Expect a graph like this.***
A lot of memorization and interpretation questions.
Ties into what is called the poverty complex (p complex/trap).
o Poor housingpoor educationpoor sanitationetc.
When people are in the poverty complex and when it goes on from
generation to generation it is called poverty trap.
One-room apartments. Living, sleeping, eating, etc. in one room with
~ 5-6 people living there.
Transmission of disease (airborne or waterborne) is high. There is no
Women were forced to work in unsanitary conditions.
Involved in trades like tobacco and nurse their infants and rolling
Very contaminated and polluted environments.
3) Spreading dusts around in the air and goes up to your nostrils.
Sell bedding and sheeting from dead relative.
Sheets were contaminated because it has bacillus.
One line is people dying from tuberculosis.
How do we get morbidity?
A disease has to be notifiable.
If you have syphilis/gonorrhea, the doctor is responsible for notifying
health authorities that there is a case.
The problem with notifiable disease is that people don’t want their
doctor to report is so pay their doctor (blind sided by corru