• 1
    National Cancer Institute. Cancer of the Colon and Rectum. Bethesda, Md: National Cancer Institute. Available at URL: Accessed September 7, 2006.
  • 2
    American Cancer Society. Colorectal Cancer Facts and Figures. Special Edition, 2005. Available at URL: Accessed September 7, 2006.
  • 3
    Ries LAG, Harkins D, Krapcho M, et al. SEER Cancer Statistics Review, 1975–2003. Bethedsa, Md: National Cancer Institute. Available at URL: Accessed September 7, 2006.
  • 4
    Howe HL, Wu X, Ries LA, et al. Annual report to the nation on the status of cancer, 1975–2003, featuring cancer among U.S. Hispanic/Latino populations. Cancer. 2006; 107: 17111742.
  • 5
    Clegg LX, Li FP, Hankey BF, Chu K, Edwards BK. Cancer survival among US Caucasians and minorities: a SEER (Surveillance, Epidemiology, and End Results) Program population-based study. Arch Intern Med. 2002; 162: 19851993.
  • 6
    Krieger N, Quesenberry C, Peng T, et al. Social class, race/ethnicity, and incidence of breast, cervix, colon, lung, and prostate cancer among Asian, black, Hispanic, and white residents of the San Francisco Bay Area, 1988–92 (United States). Cancer Causes Control. 1999; 10: 525537.
  • 7
    Irby K, Anderson WF, Henson DE, Devesa SS. Emerging and widening colorectal carcinoma disparities between blacks and whites in the United States (1975–2002). Cancer Epidemiol Biomarkers Prev. 2006; 15: 792797.
  • 8
    Polite BN, Dignam JJ, Olopade OI. Colorectal cancer model of health disparities: understanding mortality differences in minority populations. J Clin Oncol. 2006; 24: 21792187.
  • 9
    Thomas CR, Jarosz R, Evans N. Racial differences in the anatomical distribution of colon cancer. Arch Surg. 1992; 127: 12411245.
  • 10
    Coates RJ, Greenberg RS, Liu MT, et al. Anatomic site distribution of colon cancer by race and other colon cancer risk factors. Dis Colon Rectum. 1995; 38: 4250.
  • 11
    Chen VW, Fenoglio-Preiser CM, Wu XC, et al. Aggressiveness of colon carcinoma in blacks and whites. National Cancer Institute Black/White Cancer Survival Study Group. Cancer Epidemiol Biomarkers Prev. 1997; 6: 10871093.
  • 12
    Gray KD, Ballard BR, Washington MK, et al. Do adverse histopathologic findings in colorectal cancer patients explain disparate outcomes? J Natl Med Assoc. 2006; 98: 348351.
  • 13
    Shavers VL, Brown ML. Racial and ethnic disparities in the receipt of cancer treatment. J Natl Cancer Inst. 2002; 94: 334357.
  • 14
    Ball JK, Elixhauser A. Treatment differences between blacks and whites with colorectal cancer. Med Care. 1996; 34: 970984.
  • 15
    Jessup JM, Stewart A, Greene FL, Minsky BD. Adjuvant chemotherapy for stage III colon cancer: implications of race/ethnicity, age, and differentiation. JAMA. 2005; 294: 27032711.
  • 16
    Ayanian JZ, Zaslavsky AM, Fuchs CS, et al. Use of adjuvant chemotherapy and radiation therapy for colorectal cancer in a population-based cohort. J Clin Oncol. 2003; 21: 12931300.
  • 17
    Demissie K, Oluwole OO, Balasubramanian BA, Osinubi OO, August D, Rhoads GG. Racial differences in the treatment of colorectal cancer: a comparison of surgical and radiation therapy between whites and blacks. Ann Epidemiol. 2004; 14: 215221.
  • 18
    Baldwin LM, Dobie SA, Billingsley K, et al. Explaining black-white differences in receipt of recommended colon cancer treatment. J Natl Cancer Inst. 2005; 97: 12111220.
  • 19
    Institute of Medicine. Unequal Treatment: Confronting Racial and Ethnic Disparities in Health Care. Washington, DC: National Academy Press; 2002.
  • 20
    Hodgson DC, Fuchs CS, Ayanian JZ. Impact of patient and provider characteristics on the treatment and outcomes of colorectal cancer. J Natl Cancer Inst. 2001; 93: 501515.
  • 21
    Bach PB, Pham HH, Schrag D, Tate RC, Hargraves JL. Primary care physicians who treat blacks and whites. N Engl J Med. 2004; 351: 575584.
  • 22
    Nadel MR, Blackman DK, Shapira JA, Seeff LC. Are people being screened for colorectal cancer as recommended? Results from the National Health Interview Survey. Prev Med. 2002; 35: 199206.
  • 23
    McMahon LF, Wolfe RA, Huang S, Tedeschi P, Manning W, Edlund MJ. Racial and gender variation in use of diagnostic colonic procedures in the Michigan Medicare population. Med Care. 1999; 37: 712717.
  • 24
    Gornick ME, Eggers PW, Riley GF. Associations of race, education, and patterns of preventive service use with stage of cancer at time of diagnosis. Health Serv Res. 2004; 39: 14031427.
  • 25
    Schrag D, Cramer LD, Bach PB, Begg CB. Age and adjuvant chemotherapy use after surgery for stage III colon cancer. J Natl Cancer Inst. 2001; 93: 850857.
  • 26
    Dominitz JA, Samsa GP, Landsman P, Provenzale D. Race, treatment, and survival among colorectal carcinoma patients in an equal-access medical system. Cancer. 1998; 82: 23122320.
  • 27
    Cooper GS, Yuan Z, Langenfeld CS, Rimm AA. Surgery for colorectal cancer: race-related differences in rates and survival among Medicare beneficiaries. Am J Public Health. 1996; 86: 582586.
  • 28
    Page WF, Kuntz AJ. Racial and socioeconomic factors in cancer survival. A comparison of Veterans Administration results with selected studies. Cancer. 1980; 45: 10291040.
  • 29
    Wegner EL, Kolonel LN, Nomura AM, Lee J. Racial and socioeconomic status differences in survival of colorectal cancer patients in Hawaii. Cancer. 1982; 49: 22082216.
  • 30
    Dayal H, Polissar L, Yang CY, Dahlberg S. Race, socioeconomic status, and other prognostic factors for survival from colorectal cancer. J Chronic Dis. 1987; 40: 857864.
  • 31
    Akerley WL, Moritz TE, Ryan LS, Henderson WG, Zacharski LR. Racial comparison of outcomes of male Department of Veterans Affairs patients with lung and colon cancer. Arch Intern Med. 1993; 153: 16811688.
  • 32
    Mayberry RM, Coates RJ, Hill HA, et al. Determinants of black/white differences in colon cancer survival. J Natl Cancer Inst. 1995; 87: 16861693.
  • 33
    Merrill RM, Brown ML, Potosky AL, et al. Survival and treatment for colorectal cancer Medicare patients in two group/staff health maintenance organizations and the fee-for-service setting. Med Care Res Rev. 1999; 56: 177196.
  • 34
    Roetzheim RG, Pal N, Gonzalez EC, Ferrante JM, Van Durme DJ, Krischer JP. Effects of health insurance and race on colorectal cancer treatments and outcomes. Am J Public Health. 2000; 90: 17461754.
  • 35
    Marcella S, Miller JE. Racial differences in colorectal cancer mortality. The importance of stage and socioeconomic status. J Clin Epidemiol. 2001; 54: 359366.
  • 36
    Wudel LJ, Chapman WC, Shyr Y, et al. Disparate outcomes in patients with colorectal cancer: effect of race on long-term survival. Arch Surg. 2002; 137: 550554; discussion, 554–556.
  • 37
    Potosky AL, Harlan LC, Kaplan RS, Johnson KA, Lynch CF. Age, sex, and racial differences in the use of standard adjuvant therapy for colorectal cancer. J Clin Oncol. 2002; 20: 11921202.
  • 38
    Lee-Feldstein A, Feldenstein PJ, Buchmueller T. Health care factors related to stage at diagnosis and survival among Medicare patients with colorectal cancer. Med Care. 2002; 40: 362374.
  • 39
    Govindarajan R, Shah RV, Erkman LG, Hutchins LF. Racial differences in the outcome of patients with colorectal carcinoma. Cancer. 2003; 97: 493498.
  • 40
    Rogers SO, Ray WA, Smalley WE. A population-based study of survival among elderly persons diagnosed with colorectal cancer: does race matter if all are insured? (United States) Cancer Causes Control. 2004; 15: 193199.
  • 41
    Du XL, Meyer TE, Franzini L. Meta-analysis of racial disparities in survival in association with socioeconomic status among men and women with colon cancer. Cancer. 2007; 109: 21712170.
  • 42
    Warren JL, Klabunde CN, Schrag D, Bach PB, Riley GF. Overview of the SEER-Medicare data: content, research applications, and generalizability to the United States elderly population. Med Care. 2002; 40(8 suppl ): IV3IV18.
  • 43
    Mandelblatt JS, Kerner JR, Hadley J, et al; OPTIONS (Outcomes and Preferences for Treatment in Older Women Nationwide Study). Variations in breast carcinoma treatment in older medicare beneficiaries: is it black or white? Cancer. 2002; 95: 14011414.
  • 44
    Du XL, Chan W, Giordano S, et al. Variation in modes of chemotherapy administration for breast carcinoma and association with hospitalization for chemotherapy-related toxicity. Cancer. 2005; 104: 913924.
  • 45
    National Cancer Institute. The SEER Program Code Manual, Revised ed. NIH publication no. 94–1999. Bethesda, Md: National Cancer Institute; 1994.
  • 46
    U.S. Public Health Services. International Classification of Diseases, 9th Revision, Clinical Modification. 5th ed. Los Angeles, Calif: Practice Management Information Corporation; 1996.
  • 47
    American Medical Association. Physicians' Current Procedural Terminology-CPT 2000. Chicago, Ill: American Medical Association; 2000.
  • 48
    Du XL, Freeman JL, Goodwin JS. Information on radiation treatment in patients with breast cancer: the advantages of the linked Medicare and SEER data. Surveillance, Epidemiology and End Results. J Clin Epidemiol. 1999; 52: 463470.
  • 49
    Du XL, Goodwin JS. Patterns of use of chemotherapy for breast cancer in older women: findings from Medicare claims data. J Clin Oncol. 2001; 19: 14551461.
  • 50
    Du XL, Key CR, Dickie L, Darling R, Geraci JM, Zhang D. External validation of Medicare claims for breast cancer chemotherapy compared with medical chart reviews. Med Care. 2006; 44: 124131.
  • 51
    Health Care Financing Administration. HCFA Common Procedure Coding System (HCPCS): National Level II Medicare Codes. Los Angeles, Calif: Practice Management Information Corporation; 2000.
  • 52
    National Cancer Institute. SEER-Medicare: Identification of Diagnosis and Procedure Codes. Available at URL: Accessed May 4, 2006.
  • 53
    [No authors listed] NIH consensus conference. Adjuvant therapy for patients with colon and rectal cancer. JAMA. 1990; 264: 14441450.
  • 54
    Sargent DJ, Goldberg RM, Jacobson SD, et al. A pooled analysis of adjuvant chemotherapy for resected colon cancer in elderly patients. N Engl J Med. 2001; 345: 10911097.
  • 55
    SAS Institute Inc. SAS/STAT Software: Changes and Enhancements Through Release 6.11. Cary, NC: SAS Institute Inc.; 1996.
  • 56
    Allison PD. Survival Analysis Using the SAS System: A Practical Guide. Cary, NC: SAS Institute Inc.; 1995.
  • 57
    Kleinbaum DG. Survival Analysis: A Self-Learning Text. New York, NY: Springer-Verlag; 1996.
  • 58
    Rabeneck L, Souchek J, El-Seraq HB. Survival of colorectal cancer patients hospitalized in the Veterans Affairs Health Care System. Am J Gastroenterol. 2003; 98: 11861192.
    Direct Link:
  • 59
    Du XL, Fang S, Coker AL, et al. Racial disparity and socioeconomic status in association with survival in older men with local/regional stage prostate carcinoma: findings from a large community-based cohort. Cancer. 2006; 106: 12761285.
  • 60
    Braveman PA, Cubbin C, Eqerter S, et al. Socioeconomic status in health research: one size does not fit all. JAMA. 2005; 294: 28792888.
  • 61
    Braveman PA, Eqerter SA, Cubbin C, Marchi KS. An approach to studying social disparities in health and health care. Am J Public Health. 2004; 94: 21392148.
  • 62
    Berkman LF, Kawachi I. Social Epidemiology. New York, NY: Oxford University Press; 2000.
  • 63
    Winker MA. Measuring race and ethnicity: why and how? JAMA. 2004; 292: 16121614.
  • 64
    Marmot MG. Status syndrome: a challenge to medicine. JAMA. 2006; 295: 13041307.
  • 65
    Howard G, Anderson RT, Russell G, Howard VJ, Burke GL. Race, socioeconomic status, and cause-specific mortality. Ann Epidemiol. 2000; 10: 214223.
  • 66
    Tewari A, Horninger W, Pelzer AE, et al. Factors contributing to the racial differences in prostate cancer mortality. BJU Int. 2005; 96: 12471252.
  • 67
    Eley JW, Hill HA, Chen VW, et al. Racial differences in survival from breast cancer. Results of the National Cancer Institute Black/White Cancer Survival Study. JAMA. 1994; 272: 947954.
  • 68
    Sudano JJ, Baker DW. Explaining US racial/ethnic disparities in health declines and mortality in late middle age: the roles of socioeconomic status, health behaviors, and health insurance. Soc Sci Med. 2006; 62: 909922.
  • 69
    Herbst RS, Bajorin DF, Bleiberg H, et al. Clinical Cancer Advances 2005: major research advances in cancer treatment, prevention, and screening—a report from the American Society of Clinical Oncology. J Clin Oncol. 2006; 24: 190205.
  • 70
    U.S. Department of Health and Human Services. Healthy People 2010. Available at URL: Accessed March 2, 2007.