APPENDIX 1.

Calculation of Ratio Used to Adjust Summed Outcomes and Costs to Reflect True Size of US Birth and Adolescent Cohorts

Population size used for calculation purposes for birth and adolescent cohorts1 000 000
Birth cohort
2003 US Census estimate for size of the US birth cohort4 026 538
Ratio by which total outcomes and costs were multiplied4.026538 (4 026 538 divided by 1 000 000 = 4.026538)
Adolescent cohort
2003 US Census estimate for number of persons aged 10 to 14 y21 193 360 (21 193 360 divided by 5 = 4 238 672)
Estimated number of US 11-year-olds in 20034 238 672
    Ratio by which total outcomes and costs were multiplied4.238672 (4 238 672 divided by 1 000 000 = 4.238672)