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. 2000 Jun 9;67(1):133–145. doi: 10.1086/302954

Table B1.

Parameters Used to Simulate Populations

Parameter Valuea
Probability of marriage, male (ages 18–32 years) .9
Probability of marriage, female (ages 17–31 years) .9
Maximum age at pregnancy (years) 44
Initial age structure:
 0 years .03
 1 years .12
 2–5 years .15
 6–15 years .24
 16–45 years .40
 46–75 years .06
Proportion of descendants in initial population (by age):
 0–15 years .5
 15–20 years .5 →.3b
 20–30 years .3→.2
 30–50 years .2→0
 50–75 years 0
Starting year 1500
Initial population size (in 1500) 300
Expected no. of children, by time period:
 1500–1775 5.5
 1776–1915 5.5→4.0
 1916–2000 4.0→1.6
Immigration rate 0
Probability of death (function of birth year and age):
 1400–1750:
  0 years .22
  1–10 years .10
  11–25 years .10
  26–35 years .08
  36–45 years .15
  46–65 years .25
  66–85 years .10
 1751–1900:
  0 years .15
  1–10 years .085
  11–25 years .085
  26–35 years .18
  36–40 years .1
  41–45 years .05
  46–65 years .2
  66–85 years .15
 1901–2000:
  0 years .05
  1–5 years .035
  6–15 years .005
  16–35 years .125
  36–65 years .18
  66–85 years .605
a

Parameter values are functions of year and age of each individual.

b

An arrow denotes linear interpolation within the given ranges.