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Breast Cancer Surveillance Consortium: Working together to advance breast cancer research
 
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Distribution of Key Variables

Women

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
  381,827 499,159 622,446 638,678 650,759 657,167 699,081 667,762 669,994 566,657 498,019 500,055 498,798 502,488

Unique women per year
One site contributes either no data or incomplete data for years 2004+.

[Index of Tables]


Breast cancers

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
  5,461 5,801 6,556 6,978 6,939 7,211 7,172 7,069 6,706 6,618 6,472 5,995 6,070 5,620 90,668

Unique diagnoses (at most 1 cancer per woman)
One site contributes either no cancer data or incomplete cancer data for years 2006+.
Another site contributes incomplete cancer data for 2009.

[Index of Tables]


Exams

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
  419,187 552,412 705,249 734,776 752,108 768,584 817,447 780,877 781,288 651,776 572,713 576,157 574,451 579,667 9,266,692

All exams by year
One site contributes either no data or incomplete data for years 2004+.

[Index of Tables]


Indication for exam

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
1: Routine screening 349,293 457,493 543,278 543,840 535,840 538,683 581,474 553,131 551,001 510,680 447,785 438,033 445,137 450,587 6,946,255
2: Additional evaluation 24,952 31,788 41,052 47,146 49,062 59,015 60,106 57,024 52,092 47,271 41,891 46,202 48,253 47,817 653,671
3: Short interval follow-up 8,191 14,801 21,258 23,670 25,109 25,242 25,423 23,117 21,804 19,544 16,631 16,097 15,388 15,537 271,812
4: Evaluation 32,166 42,718 56,420 62,374 62,171 62,539 65,598 63,737 64,116 56,156 42,708 44,242 43,742 46,725 745,412
5: Other 70 926 1,857 2,092 2,751 2,378 3,444 3,773 2,818 2,010 2,585 2,928 3,987 4,024 35,643
9: Missing 4,515 4,686 41,384 55,654 77,175 80,727 81,402 80,095 89,457 16,115 21,113 28,655 17,944 14,977 613,899

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Symptoms (self-reported)

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No symptoms 291,672 397,443 529,282 535,284 530,458 548,821 580,248 537,041 542,257 512,334 462,715 468,862 474,068 479,515 6,890,000
1: Pain 4,329 3,869 3,107 4,140 6,988 13,008 15,359 14,134 14,066 13,795 11,588 11,134 10,337 10,335 136,189
2: Other 12,504 15,450 20,477 20,165 17,473 14,586 13,423 13,119 13,374 13,096 9,447 9,385 8,600 8,671 189,770
3: Nipple discharge 2,309 2,779 3,081 3,233 2,779 3,356 3,682 3,186 3,065 2,672 2,216 2,268 2,261 2,234 39,121
4: Lump 22,499 26,050 34,407 38,800 37,606 39,566 38,044 35,011 29,584 25,409 19,096 19,533 19,533 18,385 403,523
5: Symptoms, not otherwise specified 4,783 5,007 6,982 6,168 4,554 1,234 581 441 447 577 465 548 456 475 32,718
9: Missing 81,091 101,814 107,913 126,986 152,250 148,013 166,110 177,945 178,495 83,893 67,186 64,427 59,196 60,052 1,575,371

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Time since last mammogram

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No previous mammogram 30,847 36,877 45,518 44,908 40,820 37,811 32,993 28,800 26,932 23,481 21,267 20,070 19,081 17,254 426,659
1: Within a year (0-11 months) 58,546 81,989 116,370 130,749 132,891 136,136 143,773 135,100 135,591 111,009 95,844 97,984 95,307 97,604 1,568,893
2: 1-2 years (12-35 months) 249,987 332,646 405,883 447,827 471,891 486,165 514,854 505,939 505,556 425,876 378,457 384,060 386,309 390,203 5,885,653
3: 3-4 years (36-59 months) 28,993 36,048 41,591 36,790 35,011 37,264 41,725 37,611 40,143 35,408 30,131 28,407 27,541 26,543 483,206
4: Five years or more (60+ months) 14,845 21,293 25,148 22,449 20,453 20,207 21,009 19,901 22,496 19,330 16,652 17,318 17,581 17,796 276,478
9: Missing 35,969 43,559 70,739 52,053 51,042 51,001 63,093 53,526 50,570 36,672 30,362 28,318 28,632 30,267 625,803

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Time since last clinical breast exam

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: None within the last 3 months / No other information 141 941 1,394 8,691 19,760 58,656 69,610 71,600 82,420 85,361 84,863 93,358 95,378 99,207 771,380
1: Within the last 3 months 24,860 16,025 3,407 10,720 22,213 88,831 113,118 108,177 119,333 115,859 101,561 99,657 95,773 96,418 1,015,952
2: 4 months to 1 year ago 11,587 7,204 889 899 0 13,235 24,576 23,727 21,511 21,400 16,220 15,158 13,351 14,365 184,122
3: More than 1 year ago 23,193 29,995 23,610 23,672 22,784 15,279 21,621 21,742 21,476 23,021 20,659 19,301 17,557 18,521 302,431
4: Never had a clinical breast exam 3,671 2,316 608 375 278 463 745 653 660 766 655 620 517 595 12,922
5: Within the last year 42,540 82,104 86,027 92,757 89,936 14,930 197 * 0 * 0 * * 0 408,502
9: Missing 313,195 413,827 589,314 597,662 597,137 577,190 587,580 554,973 535,888 405,368 348,755 348,061 351,872 350,561 6,571,383

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Any mammogram performed

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 13,678 15,581 29,329 41,808 45,532 50,378 54,655 52,616 53,414 32,881 20,487 21,348 21,595 21,188 474,490
1: Yes 402,891 534,308 672,789 689,367 702,584 716,668 753,885 727,870 714,951 595,802 526,653 547,577 551,908 557,564 8,694,817
9: Missing 2,618 2,523 3,131 3,601 3,992 1,538 8,907 391 12,923 23,093 25,573 7,232 948 915 97,385

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Digital mammograms

  Exam year
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
1: Right breast only * 235 1,008 2,504 3,770 4,167 6,840 13,342 18,348 22,611 72,826
2: Left breast only * 237 1,109 2,408 3,711 4,208 6,912 13,981 19,300 23,349 75,216
3: Unilateral, side not specified 0 45 91 108 111 119 220 323 357 415 1,789
4: Bilateral (both breasts) * 2,989 15,219 40,029 56,504 63,189 92,155 185,596 282,661 355,352 1,093,697
5: Yes, woman-level information only * 20 47 104 63 7,059 43,690 60,191 38,952 41,757 191,884
9: Missing 0 0 * 49 28 57 25 687 757 593 2,198

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Ultrasounds

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
1: Right breast only 2,687 5,133 7,751 9,720 8,979 11,014 14,365 13,817 14,063 13,174 11,757 11,894 11,632 11,268 147,254
2: Left breast only 3,054 5,832 8,763 10,846 9,898 12,706 15,927 15,016 15,948 14,692 13,107 13,015 12,991 12,446 164,241
3: Unilateral, side not specified 0 0 0 0 566 2,347 7,918 8,316 8,113 5,440 0 0 0 0 32,700
4: Bilateral (both breasts) 5,910 4,572 7,427 11,106 14,270 7,335 4,988 4,613 6,683 6,652 6,279 5,879 5,560 7,904 99,178
5: Yes, woman-level information only 5,876 9,053 17,349 17,737 20,970 25,743 20,157 20,044 18,501 8,023 9,891 12,615 13,539 12,280 211,778
9: Missing 28,673 24,101 19,138 6,667 6,261 17,682 27,693 22,738 32,809 30,332 26,014 30,269 31,239 33,374 336,990

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


BI-RADS Breast density

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
1: Almost entirely fat 24,076 31,937 37,801 37,712 37,388 39,291 38,279 38,958 40,404 38,816 35,342 40,322 46,547 48,054 534,927
2: Scattered fibroglandular tissue 105,663 154,601 206,743 226,079 222,036 227,451 241,262 235,872 240,698 224,386 192,974 197,557 205,835 203,604 2,884,761
3: Heterogeneously dense) 79,790 128,209 176,684 202,329 215,353 220,362 228,768 205,722 197,783 186,846 177,483 190,027 187,747 184,367 2,581,470
4: Extremely dense 22,106 31,486 39,672 39,932 42,552 42,480 42,642 39,435 37,481 35,216 34,461 36,714 37,600 40,583 522,360
9:Missing 187,552 206,179 244,349 228,724 234,779 239,000 266,496 260,890 264,922 166,512 132,453 111,537 96,722 103,059 2,743,174

All exams by year
Only includes breast density measured using the BI-RADS system.
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Radiologists

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
  449 598 636 676 617 552 560 553 528 482 416 375 382 345

Unique radiologists per year
One site contributes either no data or incomplete data for years 2004+.

[Index of Tables]


Facilities where mammograms were taken

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
  240 256 223 198 186 177 175 173 175 160 127 118 114 114

Unique facilities per year
One site contributes either no data or incomplete data for years 2004+.

[Index of Tables]


Facilities where mammograms were read

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
  127 138 136 131 133 123 124 126 123 116 89 77 76 72

Unique facilities per year
One site contributes either no data or incomplete data for years 2004+.

[Index of Tables]


Age

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
18-24 543 694 1,031 1,363 1,617 1,593 1,676 1,646 1,632 1,239 1,021 1,065 1,071 1,208 17,399
25-29 1,543 1,801 2,689 3,275 3,299 3,334 3,131 3,058 2,901 2,314 1,929 1,901 1,869 1,961 35,005
30-34 5,544 6,154 8,901 9,241 9,552 9,814 9,840 8,876 8,172 5,807 4,918 4,656 4,596 4,740 100,811
35-39 23,498 27,861 38,353 39,296 39,362 38,772 37,134 31,905 29,410 22,345 20,000 18,766 17,840 17,131 401,673
40-44 59,167 79,663 104,447 107,754 110,029 110,741 115,895 107,648 106,517 84,534 74,004 71,257 69,861 70,239 1,271,756
45-49 66,338 87,381 112,164 116,660 119,793 121,369 128,408 121,148 120,744 96,500 84,931 84,105 84,295 83,457 1,427,293
50-54 63,353 88,449 113,725 118,274 122,912 128,455 134,003 126,169 124,874 101,901 89,232 88,942 88,404 87,969 1,476,662
55-59 49,465 65,984 83,747 88,077 91,567 95,670 110,150 109,199 111,120 94,889 84,919 84,592 83,740 84,627 1,237,746
60-64 41,656 53,982 66,253 68,895 70,712 73,464 80,403 79,990 82,422 71,468 63,603 69,405 71,830 75,615 969,698
65-69 38,816 49,874 59,960 60,720 61,053 61,378 65,476 63,860 65,079 57,830 50,511 52,656 54,636 57,318 799,167
70-74 33,053 42,399 52,034 53,511 53,028 52,858 55,860 52,935 52,678 45,943 38,862 39,652 39,745 39,990 652,548
75-79 21,699 28,658 36,577 39,415 40,180 40,329 42,456 41,156 41,165 35,758 30,769 30,852 29,839 29,009 487,862
80-84 10,316 13,846 17,653 19,220 20,012 21,358 22,982 23,090 23,808 21,516 18,924 18,966 17,739 17,389 266,819
85-89 3,492 4,701 6,359 7,108 7,360 7,632 8,155 8,255 8,752 7,889 7,267 7,543 7,196 7,303 99,012
90+ 701 958 1,341 1,581 1,621 1,743 1,822 1,918 1,988 1,811 1,713 1,716 1,699 1,620 22,232

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Race

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
1: White, non-Hispanic 300,558 394,662 480,836 500,824 515,044 521,070 554,823 526,206 498,158 433,144 382,726 383,178 375,097 371,081 6,237,407
2: Black, non-Hispanic 17,790 26,341 34,973 37,665 39,673 40,451 45,184 38,296 31,813 32,582 34,329 35,908 38,312 38,895 492,212
3: Asian 12,478 21,517 28,547 29,576 32,733 35,387 40,898 39,035 42,608 45,245 46,474 49,226 51,415 53,862 529,001
4: Native Hawaiian or Pacific Islander 32 49 49 61 89 203 319 392 448 416 359 426 406 445 3,694
5: American Indian or Alaska Native 9,901 10,500 8,918 5,966 5,280 5,216 6,284 6,908 7,403 5,498 2,186 2,103 2,002 2,004 80,169
6: Other 1,841 2,683 2,952 3,334 3,284 3,540 3,673 3,555 3,231 3,006 3,070 3,174 3,121 3,315 43,779
7: Mixed (2+ races) 798 1,538 2,486 2,729 3,031 4,238 5,094 5,020 6,041 6,541 6,114 6,241 6,249 6,502 62,622
8: Hispanic 40,782 48,041 56,521 58,940 58,552 64,245 68,598 69,497 71,511 52,680 25,275 26,543 27,143 28,593 696,921
9: Missing 35,007 47,081 89,967 95,681 94,422 94,234 92,574 91,968 120,075 72,664 72,180 69,358 70,706 74,970 1,120,887

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Body mass index

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
1: 18.5 or less (Underweight) 3,771 4,881 5,385 5,547 5,594 5,920 6,437 6,311 7,211 6,700 4,972 5,272 5,352 5,296 78,649
2: 18.5 - 24.9 (Normal) 92,235 122,374 136,298 143,905 144,086 154,579 167,652 170,994 192,389 170,958 122,183 125,882 122,905 124,301 1,990,741
3: 25.0 - 29.9 (Overweight) 59,238 79,000 88,090 91,682 94,076 100,106 112,052 114,616 121,737 106,406 77,129 78,443 75,244 76,324 1,274,143
4: 30.0 - 34.9 (Obese I) 24,902 34,380 38,179 39,994 42,292 45,470 52,039 53,511 56,620 49,417 37,777 38,329 37,238 38,242 588,390
5: 35.0 - 39.9 (Obese II) 7,949 11,695 12,947 13,718 15,051 16,322 19,135 19,937 20,993 19,233 15,785 16,161 15,710 16,194 220,830
6: 40 or greater (Obese III) 4,271 6,178 7,247 7,774 8,402 9,451 11,177 11,603 12,465 12,014 10,236 10,735 10,534 10,996 133,083
9: Missing 226,821 293,904 417,103 432,156 442,607 436,736 448,955 403,905 369,873 287,048 304,631 301,335 307,468 308,314 4,980,856

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Highest level of education completed

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
1: < High school graduate 25,723 37,099 47,844 51,559 51,517 48,625 49,338 45,178 42,623 38,087 32,685 31,303 29,586 28,574 559,741
2: High school graduate or GED 72,164 102,698 127,959 131,348 134,896 131,593 139,226 129,333 121,434 104,766 91,591 89,200 84,403 81,661 1,542,272
3: Some college/technical school 75,310 106,131 130,868 138,762 142,487 142,183 151,453 141,971 135,014 119,371 108,589 107,494 103,004 102,493 1,705,130
4: College or post-college graduate 90,249 132,023 169,541 180,512 189,802 196,311 214,184 205,883 200,599 185,306 177,440 180,337 180,194 183,735 2,486,116
9: Missing 155,741 174,461 229,037 232,595 233,406 249,872 263,246 258,512 281,618 204,246 162,408 167,823 177,264 183,204 2,973,433

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Menopause

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 83,156 121,651 158,748 168,506 171,431 172,082 187,787 175,322 173,014 162,808 143,547 142,749 141,248 136,806 2,138,855
1: Yes 258,604 349,062 440,351 456,954 461,897 471,086 503,367 480,761 483,455 420,052 363,118 369,581 368,467 373,230 5,799,985
9: Missing 77,427 81,699 106,150 109,316 118,780 125,416 126,293 124,794 124,819 68,916 66,048 63,827 64,736 69,631 1,327,852

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Current hormone therapy use

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 168,994 274,417 381,830 404,270 400,267 417,670 464,928 487,508 509,756 487,189 424,978 428,905 431,960 433,785 5,716,457
1: Yes 72,981 117,432 175,205 183,898 178,883 178,312 163,102 110,886 91,084 70,477 47,582 43,701 40,342 39,485 1,513,370
9: Missing 177,212 160,563 148,214 146,608 172,958 172,602 189,417 182,483 180,448 94,110 100,153 103,551 102,149 106,397 2,036,865

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Previous breast cancer

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 total
0: No 259,505 310,402 336,361 359,887 367,949 394,671 488,347 479,921 485,410 474,638 467,971 476,255 473,581 464,388 5,839,286
1: Yes 22,836 28,996 34,839 38,177 40,643 41,826 45,536 47,470 47,938 42,776 38,084 39,010 39,106 40,236 547,473
9: Missing 136,846 213,014 334,049 336,712 343,516 332,087 283,564 253,486 247,940 134,362 66,658 60,892 61,764 75,043 2,879,933

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Family history of breast cancer

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 253,629 329,538 426,007 434,467 428,131 578,464 611,446 585,589 592,678 526,061 459,132 467,605 467,691 468,790 6,629,228
1: Yes 43,950 56,732 74,860 83,890 90,294 95,531 104,812 104,828 110,166 98,958 87,164 92,486 94,952 98,028 1,236,651
9: Missing 121,608 166,142 204,382 216,419 233,683 94,589 101,189 90,460 78,444 26,757 26,417 16,066 11,808 12,849 1,400,813

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Ever given birth

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 44,694 54,962 63,609 69,335 73,969 69,651 74,077 73,354 81,675 78,262 72,249 77,087 78,727 79,835 991,486
1: Yes 205,565 264,942 291,759 304,729 301,990 313,524 337,224 333,738 356,021 322,716 266,271 266,686 255,773 260,014 4,080,952
9: Missing 168,928 232,508 349,881 360,712 376,149 385,409 406,146 373,785 343,592 250,798 234,193 232,384 239,951 239,818 4,194,254

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Age at first birth

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: Nulliparous 44,558 54,682 63,250 69,000 73,559 69,195 73,578 72,853 76,022 71,733 65,533 67,098 66,341 67,463 934,865
1: < 20 26,478 39,028 47,723 52,537 52,913 52,569 56,116 51,979 53,893 49,306 41,849 41,458 39,190 39,035 644,074
2: 20-24 48,842 70,006 81,321 87,609 87,544 84,622 87,914 82,066 85,259 80,387 70,903 68,950 64,707 64,100 1,064,230
3: 25-29 25,864 37,852 43,457 48,194 48,173 46,062 48,246 45,936 49,814 49,212 45,258 45,478 43,162 43,642 620,350
4: 30-34 9,468 14,086 16,364 18,276 18,641 17,114 18,693 18,089 20,586 20,669 19,333 20,194 19,667 20,765 251,945
5: 35-39 3,161 4,354 5,147 5,692 5,842 5,254 5,774 5,583 6,599 7,091 6,605 6,930 7,192 7,563 82,787
6: 40+ 889 1,378 2,008 2,212 2,354 2,329 2,836 2,827 3,350 3,761 3,844 4,302 4,544 4,791 41,425
7: Age only reported as <30 72,185 73,770 69,617 64,316 59,999 76,323 84,708 83,747 88,789 67,627 44,663 46,434 45,825 46,767 924,770
8: Age only reported as >=30 12,329 13,635 15,123 15,226 16,292 18,373 21,574 20,653 23,623 23,482 24,549 26,255 27,146 28,244 286,504
9: Missing 175,413 243,621 361,239 371,714 386,791 396,743 418,008 397,144 373,353 278,508 250,176 249,058 256,677 257,297 4,415,742

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Age at menarche

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No menarche 32 56 54 59 75 104 96 113 142 116 133 148 124 130 1,382
1: Age only reported as <=10 1,412 4,290 5,425 5,524 5,533 3,403 2,343 2,459 2,714 2,646 2,775 4,626 4,616 4,523 52,289
2: <=12 40,940 65,671 78,272 82,838 87,791 91,575 96,951 95,970 95,830 99,111 95,453 92,584 88,221 89,255 1,200,462
3: 13 30,992 48,215 56,777 60,121 64,001 68,611 74,246 73,653 74,270 75,638 73,526 72,676 68,837 69,189 910,752
4: 14 13,671 21,249 25,178 26,724 27,947 29,603 31,428 30,962 31,166 32,134 31,275 30,881 29,631 29,594 391,443
5: 15+ 11,280 17,356 20,421 21,506 22,846 24,707 26,280 26,047 26,000 27,610 26,829 27,212 26,266 26,213 330,573
9: Missing 320,860 395,575 519,122 538,004 543,915 550,581 586,103 551,673 551,166 414,521 342,722 348,030 356,756 360,763 6,379,791

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Covered by Medicare

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 248,633 234,417 344,958 405,076 404,028 322,598 318,768 283,167 243,367 150,657 123,633 117,632 114,741 100,462 3,412,137
1: Yes 48,364 61,539 79,528 91,051 91,595 78,310 81,281 77,361 64,551 46,620 39,903 38,771 36,645 32,337 867,856
9: Missing 122,190 256,456 280,763 238,649 256,485 367,676 417,398 420,349 473,370 454,499 409,177 419,754 423,065 446,868 4,986,699

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Covered by Medicaid

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 266,153 265,834 379,942 441,604 445,340 386,264 384,451 345,539 295,601 189,373 157,076 150,321 145,191 127,899 3,980,588
1: Yes 6,157 9,800 14,023 16,852 14,451 10,899 12,647 12,083 9,590 7,549 6,464 6,100 6,197 4,891 137,703
9: Missing 146,877 276,778 311,284 276,320 292,317 371,421 420,349 423,255 476,097 454,854 409,173 419,736 423,063 446,877 5,148,401

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Covered by private insurance

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 12,164 39,648 54,630 71,809 76,121 66,810 61,273 56,813 41,476 28,855 17,033 14,880 12,356 12,255 566,123
1: Yes 46,761 75,093 85,306 89,468 91,775 32,308 36,222 34,345 27,887 18,736 9,113 7,723 6,007 7,168 567,912
9: Missing 360,262 437,671 565,313 573,499 584,212 669,466 719,952 689,719 711,925 604,185 546,567 553,554 556,088 560,244 8,132,657

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]


Covered by managed care insurance

  Exam year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
0: No 16,169 43,844 55,229 62,649 61,894 57,934 53,168 61,913 56,413 35,149 21,537 19,271 16,222 16,391 577,783
1: Yes 42,192 60,932 64,600 70,884 75,457 77,655 79,514 77,378 63,713 58,528 50,847 50,037 46,555 50,149 868,441
9: Missing 360,826 447,636 585,420 601,243 614,757 632,995 684,765 641,586 661,162 558,099 500,329 506,849 511,674 513,127 7,820,468

All exams by year
One site contributes either no data or incomplete data for years 2004+.
* Indicates counts ranging from 1 to 5.

[Index of Tables]