Associations of physician supplies with colon cancer care in Ontario and California, 1996 to 2006

Digestive Diseases and Sciences

Volumn 56, Issue 2, 2011, Pages 523-531

  Gorey, Kevin M ^a   Luginaah, Isaac N ^b   Bartfay, Emma ^c   Fung, Karen Y ^a   Holowaty, Eric J ^d   Wright, Frances C ^e   Hamm, Caroline ^f   Kanjeekal, Sindu M ^f   Balagurusamy, Madhan K ^a  

^a UNIVERSITY OF WINDSOR   (Canada)

^b UNIVERSITY OF WESTERN ONTARIO   (Canada)

^c UNIVERSITY OF ONTARIO INSTITUTE OF TECHNOLOGY   (Canada)

^d Population Studies and Surveillance   (Canada)

^e UNIVERSITY OF TORONTO   (Canada)

^f Centre Regional De Cancerologie De Windsor   (Canada)

Author keywords

Canada; Colon cancer; Gastroenterology; Physician supply; Primary care; USA

Indexed keywords

ARTICLE; CANADA; CANCER ADJUVANT THERAPY; CANCER REGISTRY; CANCER STAGING; CANCER SURVIVAL; COLON CANCER; HEALTH CARE MANPOWER; HUMAN; LOWEST INCOME GROUP; PHYSICIAN; PREVALENCE; PRIMARY MEDICAL CARE; PRIORITY JOURNAL; RURAL AREA; UNITED STATES; URBAN AREA;

CALIFORNIA; COLONIC NEOPLASMS; DELIVERY OF HEALTH CARE; GASTROENTEROLOGY; HUMANS; ONTARIO; PHYSICIANS; URBAN POPULATION;

EID: 79952455844     PISSN: 01632116     EISSN: None     Source Type: Journal    
DOI: 10.1007/s10620-010-1284-4     Document Type: Article

References (63)

1. S Sarma C Peddigrew 2008 The relationship between family physician density and health related outcomes: the Canadian evidence Cah Sociol Demogr Med 48 61 105 18447066
2. K Baicker A Chandra 2004 Medicare spending, the physician workforce, and beneficiaries' quality of care Health Aff (Millwood) W4 184 197
3. Ontario Medical Association Human Resources Committee 2007 OMA position on physician workforce policy and planning revisited: recommendations to address Ontario's doctor shortages Ont Med Rev 74 17 26
4. Scully H, Tyrrell L. Task force on physician supply in Canada. Ottawa: Canadian Medical Forum Task Force; 1999.
5. Grumbach K, Chattopadhyay A, Bindman AB. Fewer and more specialized: a new assessment of physician supply in California. Oakland: California HealthCare Foundation; 2009.
6. California Medical Association. And then there were none: the coming physician supply problem. San Francisco, 2001.
7. KM Gorey IN Luginaah EJ Holowaty KY Fung C Hamm 2009 Associations of physician supplies with breast cancer stage at diagnosis and survival in Ontario, 1988 to 2006 Cancer 115 3563 3570 10.1002/cncr.24401 19484796
8. KM Gorey IN Luginaah EJ Holowaty KY Fung C Hamm 2010 Physician supply and breast cancer survival J Am Board Fam Pract 23 104 108 10.3122/jabfm.2010.01. 090064
9. JM Fleisher JQ Lou M Farrell 2008 Relationship between physician supply and breast cancer survival: a geographic approach J Commun Health 33 179 182 10.1007/s10900-008-9090-z
10. PL Davidson R Bastani TT Nakazono DC Carreon 2005 Role of community risk factors and resources on breast carcinoma stage at diagnosis Cancer 103 922 930 10.1002/cncr.20852 15651072 (Pubitemid 40276831)
11. JM Ferrante EC Gonzalez N Pal RG Roetzheim 2000 Effects of physician supply on early detection of breast cancer J Am Board Fam Pract 13 408 414 1:STN:280:DC%2BD3M7htl2ntA%3D%3D 11117337 (Pubitemid 33645639)
12. Canadian Cancer Society's Steering Committee. Canadian Cancer Statistics, 2009. Toronto: Canadian Cancer Society; 2009.
13. Horner MJ, Ries LAG, Krapcho M, et al. SEER Cancer Statistics Review, 1975-2006. Bethesda, MD: National Cancer Institute; 2009.
14. B Bressler C Lo J Amar, et al. 2004 Prospective evaluation of screening colonoscopy: who is being screened? Gastrointest Endosc 60 921 926 10.1016/S0016-5107(04)02231-X 15605007 (Pubitemid 39655466)
15. A Chao CJ Connell V Cokkinides EJ Jacobs EE Calle MJ Thun 2004 Underuse of screening sigmoidoscopy and colonoscopy in a large cohort of US adults Am J Public Health 94 1775 1781 10.2105/AJPH.94.10.1775 15451749 (Pubitemid 39331769)
16. DA Wirtzfeld L Mikula R Gryfe, et al. 2009 Concordance with clinical practice guidelines for adjuvant chemotherapy in patients with stage I-III colon cancer: experience in 2 Canadian provinces Can J Surg 52 92 97 19399202
17. DA Etzioni AB El-Khoueiry RW Beart 2008 Rates and predictors of chemotherapy use for stage III colon cancer: a systematic review Cancer 113 3279 3289 10.1002/cncr.23958 18951522
18. A Figueredo ME Coombes S Mukherjee 2008 Adjuvant therapy for completely resected stage II colon cancer Cochrane Database Syst Rev 3 CD005390 18646127
19. VH Menec M Sirski D Attawar 2005 Does continuity of care matter in a universally insured population? Health Serv Res 40 389 400 10.1111/j.1475-6773. 2005.0p364.x 15762898 (Pubitemid 40470699)
20. L Shi J Macinko B Starfield R Politzer J Wulu J Xu 2005 Primary care, social inequalities, and all-cause, heart disease, and cancer mortality in US counties, 1990 Am J Public Health 95 674 680 10.2105/AJPH.2003.031716 15798129 (Pubitemid 40411146)
21. J Macinko B Starfield L Shi 2003 The contribution of primary care systems to health outcomes within organization for economic cooperation and development (OECD) countries, 1970-1998 Health Serv Res 38 831 865 10.1111/1475-6773.00149 12822915 (Pubitemid 36682489)
22. SB Menees J Scheiman R Carlos A Mulder AM Fendrick 2006 Gastroenterologists utilize the referral for EGD to enhance colon cancer screening more effectively than primary care physicians Aliment Pharmacol Ther 23 953 962 1:STN:280:DC%2BD287nvFKrsg%3D%3D 10.1111/j.1365-2036.2006.02844.x 16573798
23. DA Haggstrom NK Arora P Helft ML Clayman I Oakley-Girvan 2009 Follow-up care delivered among colorectal cancer survivors most often seen by primary care and subspecialty care physicians J Gen Intern Med 24 Suppl 2 S472 S479 10.1007/s11606-009-1017-6 19838853
24. GS Cooper TD Kou HL Reynolds Jr 2008 Receipt of guideline-recommended follow-up in older colorectal cancer survivors: a population-based analysis Cancer 113 2029 2037 10.1002/cncr.23823 18780338
25. RG Roetzheim EC Gonzalez A Ramirez R Campbell DJ Van Durme 2001 Primary care physician supply and colorectal cancer J Fam Pract 50 1027 1031 1:STN:280:DC%2BD3MnpsVGkuw%3D%3D 11742602 (Pubitemid 33131152)
26. RG Roetzheim N Pal EC Gonzalez, et al. 1999 The effects of physician supply on the early detection of colorectal cancer J Fam Pract 48 850 858 1:STN:280:DC%2BD3czoslGrug%3D%3D 10907621
27. KM Gorey 2009 Breast cancer survival in Canada and the USA: meta-analytic evidence of a Canadian advantage in low-income areas Int J Epidemiol 38 1543 1551 10.1093/ije/dyp193 19386825
28. Gorey KM, Fung KY, Luginaah IN, Holowaty EJ, Hamm C. Income and long-term breast cancer survival: comparisons of vulnerable urban places in Ontario and California. Breast J. (in press).
29. Gorey KM, Luginaah IN, Bartfay E et al. Effects of socioeconomic status on colon cancer treatment accessibility and survival in Toronto, Ontario, and San Francisco, California, 1996-2006. Am J Public Health. (in press).
30. KM Gorey IN Luginaah C Hamm KY Fung EJ Holowaty 2010 Breast cancer care in Canada and the United States: ecological comparisons of extremely impoverished and affluent urban neighborhoods Health Place 16 156 163 10.1016/j.healthplace.2009.09.011 19840902
31. KM Gorey IN Luginaah EJ Holowaty KY Fung C Hamm 2009 Wait times for surgical and adjuvant radiation treatment of breast cancer in Canada and the United States: greater socioeconomic inequity in America Clin Invest Med 32 E239 E249 19480739
32. SS Coughlin S Leadbetter T Richards SA Sabatino 2008 Contextual analysis of breast and cervical cancer screening and factors associated with health care access among United States women, 2002 Soc Sci Med 66 260 275 10.1016/j.socscimed.2007.09.009 18022299 (Pubitemid 350236484)
33. K Grumbach K Vranizan AB Bindman 1997 Physician supply and access to care in urban communities Health Aff (Millwood) 16 71 86 10.1377/hlthaff.16.1.71 (Pubitemid 127463761)
34. S Hall K Schulze P Groome W Mackillop E Holowaty 2006 Using cancer registry data for survival studies: the example of the Ontario Cancer Registry J Clin Epidemiol 59 67 76 10.1016/j.jclinepi.2005.05.001 16360563 (Pubitemid 41797477)
35. SD Walter SE Birnie LD Marrett, et al. 1994 The geographic variation of cancer incidence in Ontario Am J Public Health 84 367 376 1:STN:280: DyaK2c7nsFWkug%3D%3D 10.2105/AJPH.84.3.367 8129051 (Pubitemid 24107818)
36. North American Association of Central Cancer Registries. Data quality assessments. 2008. Available at: http://www.naaccr.org. Accessed May 12, 2009.
37. National Cancer Institute. Surveillance, epidemiology, and end results (SEER). 2008. Available at: http://www.seer.cancer.gov. Accessed May 12, 2009.
38. California Cancer Registry. Cancer Reporting in California: Abstracting and Coding Procedures for Hospitals. California Cancer Reporting System standards. Vol. I, 7th ed. Sacramento, Department of Health Services, Cancer Surveillance Section; 2003.
39. Greene FL, Page DL, Fleming ID, et al., eds. AJCC Staging Manual. 6th ed. New York: Springer; 2002.
40. Fritz A, Ries L, eds. SEER Extent of Disease: Codes and Coding Instructions. 3rd ed. Bethesda, MD: National Cancer Institute; 1998.
41. Statistics Canada. Profiles of census tracts and census subdivisions, 2001 (Ontario). Ottawa, 2002.
42. US Bureau of the Census. 2000 Census of Population, Housing in California: Summary Tape File 3 on CD-ROM. Washington, DC: US Department of Commerce; 2002.
43. Organization for Economic Co-Operation and Development (OECD). Purchasing power parities. Available at: http://www.oecd.org/std/ppp. Accessed on February 12, 2009.
44. Lafrance R, Schembri L. Purchasing-power parity: definition, measurement, and interpretation. Bank Can Rev. 2002; Autumn, pp 27-33.
45. Canadian Institute for Health Information (CIHI). Supply, Distribution and Migration of Canadian Physicians, 2001. Ottawa: CIHI; 2002.
46. American Medical Association (AMA). Physician characteristics, distribution in the US: 2000-2001. Chicago: AMA; 1999.
47. JA Shea PR Kletke GD Wozniak D Polsky JJ Escarce 1999 Self-reported physician specialties and the primary care content of medical practice: a study of the AMA physician masterfile Med Care 37 333 338 1:STN:280: DyaK1M3ivVSjsA%3D%3D 10.1097/00005650-199904000-00003 10213014
48. PT Williams M Whitcomb J Kessler 1996 Quality of the family physician component of AMA masterfile J Am Board Fam Pract 9 94 99 1:STN:280: DyaK283js1altQ%3D%3D 8659271 (Pubitemid 126786306)
49. K Grumbach SH Becker EHS Osborn AB Bindman 1995 The challenge of defining and counting generalist physicians: an analysis of physician masterfile data Am J Public Health 85 1402 1407 1:STN:280:DyaK28%2FisFSisg%3D%3D 10.2105/AJPH.85.10.1402 7573625
50. Hosmer DW, Lemeshow S. Applied logistic regression. 2nd ed. New York: Wiley; 2000.
51. AJ Klockars GR Hancock 1992 Power of recent multiple comparison procedures as applied to a complete set of planned orthogonal contrasts Psych Bull 111 505 510 10.1037/0033-2909.111.3.505
52. Fleiss JL, Levin B, Paik MC. Statistical methods for rates and proportions. 3rd ed. New York: Wiley; 2003.
53. N Mantel W Haenszel 1959 Statistical aspects of the analysis of data from retrospective studies of disease J Natl Cancer Inst 22 719 748 1:STN:280:DyaG1M%2FosVOhtQ%3D%3D 13655060
54. OS Miettinen 1976 Estimability and estimation in case-referent studies Am J Epidemiol 103 226 235 1:STN:280:DyaE287jtlyiuw%3D%3D 1251836
55. D Litaker A Tomolo 2007 Association of contextual factors and breast cancer screening: finding new targets to promote early detection J Womens Health (Larchmt) 16 36 45 10.1089/jwh.2006.0090
56. N Krieger JT Chen PD Waterman DH Rehkopf SV Subramanian 2003 Race/ethnicity, gender, and monitoring socioeconomic gradients in health: a comparison of area-based socioeconomic measures-The Public Health Disparities Geocoding Project Am J Public Health 93 1655 1671 10.2105/AJPH.93.10.1655 14534218 (Pubitemid 38477631)
57. N Krieger JT Chen PD Waterman M Soobader SV Subramanian R Carson 2002 Geocoding and monitoring of US socioeconomic inequalities in mortality and cancer incidence: does the choice of area-based measure and geographic level matter? The Public Health Disparities Geocoding Project Am J Epidemiol 156 471 482 10.1093/aje/kwf068 12196317 (Pubitemid 34976986)
58. KM Gorey 2006 Regarding "Associations between socioeconomic status and cancer survival" Ann Epidemiol 16 789 791 10.1016/j.annepidem.2006.04. 010 16882472 (Pubitemid 44441941)
59. C Hoffman J Paradise 2008 Health insurance and access to health care in the United States Ann NY Acad Sci 1136 149 160 10.1196/annals.1425.007 17954671 (Pubitemid 351862161)
60. Halpern MT, Pavluck AL, Ko CY, Ward EM. Factors associated with colon cancer stage at diagnosis. Dig Dis Sci. (in press).
61. H Le A Ziogas SM Lipkin JA Zell 2008 Effects of socioeconomic status and treatment disparities in colorectal cancer survival Cancer Epidemiol Biomarkers Prev 17 1950 1962 10.1158/1055-9965.EPI-07-2774 18708384
62. XL Du TE Meyer L Franzini 2007 Meta-analysis of racial disparities in survival in association with socioeconomic status among men and women with colon cancer Cancer 109 2161 2170 10.1002/cncr.22664 17455219 (Pubitemid 46801545)
63. Gorey KM, Luginaah IN, Hamm C, Zou G, Balagurusamy M, Holowaty EJ. Physician supplies and breast cancer care in Ontario and California, 1998 to 2006. Can J Rural Med. (in press).