0-13 1980-93 100,000 ... 1,732 0 0 0 0.000% 14 1994 98,268 44 43 1 1 1 0.001 15 1995 98,224 57 56 5 5 6 0.006 16 1996 98,163 73 72 39 38 44 0.045 17 1997 98,053 84 83 135 132 176 0.180 18 1998 97,838 93 91 283 277 453 0.462 19 1999 97,470 93 91 346 337 789 0.806 20 2000 97,043 94 91 355 344 1132 1.158 21 2001 96,607 96 92 356 343 1474 1.510 Note: Calculations for ages 0 to 13 were based on data for each single year of age and then grouped for presentation. ... Not shown, because calculations were based on rates for single years of age. [a] To estimate the number expected to die at each year of age, age-specific mortality rates(column 2) were multiplied by the number of persons alive and not previously incarcerated (column 1). [b] To estimate the number expected to go to prison at each year of age, age-specific first admission rates (column 4) were multiplied by the number of persons surviving (column 1 minus column 3). [c] To estimate the surviving number of first admissions, the number of first admissions from the x-th year of age (column 5) were added to the number of surviving first admissions from the x-1 year of age. Mortality rates for ex-prisoners by age were based on mortality rates in the general population and adjusted to reflect higher ex-prisoner mortality. [d]To estimate the prevalence percent, this procedure was followed. The surviving number of persons ever incarcerated (column 6) was divided by the total number of surviving persons never incarcerated (column 1 minus both columns 3 and 5) and persons ever incarcerated (column 6), times 100%. ---------------------------------------------------------------------- ---------------------------------------------------------------------- <B>Appendix table 3. Estimating the prevalence of imprisonment in the U.S. population for persons born in 1970</B> Population of 100,000 births, 1970, reduced by mortality and incarceration in each successive year of age