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Table 3.11

Age-Adjusted SEER Incidencea , by Year and Sex

By Adapted Classification Scheme for Tumors of Adolescents and Young Adultsb

All Races, Ages 35-39

Both Sexes

Site 1975-2018 2009-2018
Count Rate AAPCc Count Rate AAPCc
All Sites Combined 113,030 135.7 0.7* 29,010 145.1 0.1
1. Leukemias 3,252 3.9 0.6 911 4.6 1.9*
2. Lymphomas 9,128 11.0 1.1* 2,005 10.0 -1.4*
3. CNS, intracranial, intraspinal 3,287 3.9 -0.2 749 3.7 -0.2
4. Osseous & chondromatous neoplasms 570 0.7 1.2* 156 0.8 1.2*
5. Soft tissue sarcomas 6,561 7.9 0.7 876 4.4 -1.4*
6. Germ cell and trophoblastic neoplasms 5,033 6.0 1.5* 1,329 6.6 0.4*
7. Melanoma and skin carcinomas 12,239 14.7 1.4* 3,140 15.7 0.3*
8. Carcinomas (excluding skin) 70,191 84.3 0.5* 18,869 94.4 0.4
9. Miscellaneous specified neoplasms, NOS 2,144 2.6 2.8* 828 4.1 2.5*
10. Unspecified malignant neoplasms 569 0.7 -0.5 114 0.6 -0.5

Males

Site 1975-2018 2009-2018
Count Rate AAPCc Count Rate AAPCc
All Sites Combined 41,765 100.6 0.5* 9,742 97.7 0.2
1. Leukemias 1,877 4.5 0.4* 506 5.1 0.4*
2. Lymphomas 5,845 14.1 1.1* 1,161 11.6 -1.6*
3. CNS, intracranial, intraspinal 1,907 4.6 -0.3 426 4.3 -0.3
4. Osseous & chondromatous neoplasms 319 0.8 0.5 83 0.8 0.5
5. Soft tissue sarcomas 5,050 12.2 1.7 528 5.3 -2.0*
6. Germ cell and trophoblastic neoplasms 4,778 11.5 1.6* 1,259 12.6 0.4*
7. Melanoma and skin carcinomas 5,238 12.6 0.6 1,227 12.3 -0.4*
8. Carcinomas (excluding skin) 15,599 37.6 0.3* 4,159 41.7 1.1*
9. Miscellaneous specified neoplasms, NOS 902 2.2 2.4 335 3.4 1.5
10. Unspecified malignant neoplasms 220 0.5 -1.1 39 0.4 -1.1

Females

Site 1975-2018 2009-2018
Count Rate AAPCc Count Rate AAPCc
All Sites Combined 71,265 170.6 0.7* 19,268 192.3 0.3
1. Leukemias 1,375 3.3 0.9 405 4.0 1.3*
2. Lymphomas 3,283 7.9 1.0* 844 8.4 -0.8
3. CNS, intracranial, intraspinal 1,380 3.3 -0.1 323 3.2 -0.1
4. Osseous & chondromatous neoplasms 251 0.6 - 73 0.7 -
5. Soft tissue sarcomas 1,511 3.6 -0.4 348 3.5 -0.4
6. Germ cell and trophoblastic neoplasms 255 0.6 0.1 70 0.7 0.1
7. Melanoma and skin carcinomas 7,001 16.8 1.7 1,913 19.1 0.5*
8. Carcinomas (excluding skin) 54,592 130.7 0.5* 14,710 146.8 0.4
9. Miscellaneous specified neoplasms, NOS 1,242 3.0 3.6* 493 4.9 3.6*
10. Unspecified malignant neoplasms 349 0.8 -0.2 75 0.7 -0.2

Footnotes:

Rates are per 100,000 and are age-adjusted to the 2000 US Std Population (19 age groups - Census P25-1130).

a Rates are from the SEER 9 areas (San Francisco, Connecticut, Detroit, Hawaii, Iowa, New Mexico, Seattle, Utah, Atlanta).

b Adapted from: RD Barr, EJ Holowaty, JM Birch. Classification Scheme for tumors diagnosed in adolescents and young adults. Cancer. 106:7; 1425-1430. (Restricted to malignant tumors and updated based on ICD-O-3 definitions).

c The AAPC is the Average Annual Percent Change and is based on the APCs calculated by Joinpoint over the time range of 1975-2018.

- Statistic could not be calculated. Count and rate based on less than 16 cases for the time interval. AAPC could not be calculated due to insufficient data.

* The AAPC is significantly different from zero (p<.05).

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