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Lecture 11

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University of Toronto Scarborough
Larry Sawchuk

ANTC67 – Lecture 11 Antc67survivors Slide 2  Looking at age of death.  Most deaths from 25-35.  W shaped distribution. Slide 4  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. Slide 6  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 deaths.  Greatest mortality is occurring usually at always under the age of 5 or 1.  Tremendous loss in babies before 1. Influenzafor67 Slide 22  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. Slide 23  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. Slide 24  Ties into what is called the poverty complex (p complex/trap). o Poor housingpoor educationpoor sanitationetc.  When people are in the poverty complex and when it goes on from generation to generation it is called poverty trap. Slide 25  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 escaping. Slide 26  Women were forced to work in unsanitary conditions.  Involved in trades like tobacco and nurse their infants and rolling cigarettes.  Very contaminated and polluted environments. Slide 27  3) Spreading dusts around in the air and goes up to your nostrils. Slide 28  Sell bedding and sheeting from dead relative.  Sheets were contaminated because it has bacillus. Slide 29  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
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