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To calculate the age-adjusted rate, we must bring in the standard populations. The standard population column shows the projected population in the United States distributed among the 19 age groups in the year 2000. Proportions based on the standard population are calculated and shown in the column, "Age Distribution of Std Pop". These will be used as the weights.

Finally, the age-adjusted rate is calculated by multiplying each crude rate by the appropriate weight and summing the products. The result, 400.3, is shown in the last row of the right-most column.

Age Count Population Crude Rate U.S. 2000
Standard Populations		 Age Distribution
of Std Pop		  
00 years
29
 139,879 20.7 3,794,901 0.013818 0.29
01-04 years
87
 553,189 15.7 15,191,619 0.055316 0.87
05-09 years
67
 736,212 9.1 19,919,840 0.072532 0.66
10-14 years
71
 770,999 9.2 20,056,779 0.073031 0.67
15-19 years
87
 651,390 13.4 19,819,518 0.072167 0.96
20-24 years
177
 639,159 27.7 18,257,225 0.066478 1.84
25-29 years
290
 676,354 42.9 17,722,067 0.064530 2.77
30-34 years
657
 736,557 89.2 19,511,370 0.071045 6.34
35-39 years
1,072
 724,826 147.9 22,179,956 0.080762 11.94
40-44 years
1,691
 700,200 241.5 22,479,229 0.081852 19.77
45-49 years
2,428
 617,437 393.2 19,805,793 0.072117 28.36
50-54 years
2,931
 516,541 567.4 17,224,359 0.062718 35.59
55-59 years
2,881
 361,170 797.7 13,307,234 0.048454 38.65
60-64 years
2,817
 259,440 1,085.8 10,654,272 0.038794 42.12
65-69 years
2,817
 206,204 1,366.1 9,409,940 0.034264 46.81
70-74 years
2,744
 172,087 1,594.5 8,725,574 0.031772 50.66
75-79 years
2,634
 142,958 1,842.5 7,414,559 0.026998 49.74
80-84 years
1,884
 99,654 1,890.5 4,900,234 0.017843 33.73
85+ years
1,705
 92,692 1,839.4 4,259,173 0.015509 28.53
All Ages       274,633,642 1.000000 400.3

Note: these values were calculated using the SEER 9 registry database from the Nov 2006 submission.

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