1. Kindig DA, Cultice JM, Mullan F. The elusive generalist physician. Can we reach a 50% goal? JAMA 1993;270:1069-73.
2. Rivo ML, Satcher D. Improving access to health care through physician workforce reform. Directions for the 21st century. JAMA 1993;270:1074-8.
3. Rivo ML, Mays HL, Katzoff J, Kindig DA. Managed health care. Implications for the physician workforce and medical education. Council on Graduate Medical Education. JAMA 1995;274:712-5.
4. Rosenblatt RA. Specialists or generalists. On whom should we base the American health care system? JAMA 1992;267:1665-6.
5. Schroeder S, Sandy L. Specialty distribution of US physicians—the invisible driver of health care costs. N Engl J Med 1993;328:961-3.
6. Weiner JP. Forecasting the effects of health reform on US physician workforce requirement. Evidence from HMO staffing patterns. JAMA 1994;272:222-30.
7. Barnett P, Midtling J. Public policy and the supply of primary care physicians. JAMA 1989;262:2864-8.
8. Politzer RM, Harris DL, Gaston MH, Mullan F. Primary care physician supply and the medically underserved. A status report and recommendations. JAMA 1991;266:104-9.
9. Cooper R. Seeking a balanced physician workforce for the 21st century. JAMA 1994;272:680-7.
10. Goodman D, Fisher E, Bubolz T, Mohr J, Poage J, Wennberg J. Benchmarking the US physician workforce. JAMA 1996;276:1811-7.
11. Whitcomb ME. A cross-national comparison of generalist physician workforce data. Evidence for US supply adequacy. JAMA 1995;274:692-5.
12. Kane R, Friedman B. State variations in Medicare expenditures. Am J Public Health 1997;87:1611-20.
13. Mark DH, Gottlieb MS, Zellner BB, Chetty VK, Midtling JE. Medicare costs in urban areas and the supply of primary care physicians. J Fam Pract 1996;43:33-9.
14. Welch W, Miller M, Welch H, Fisher E, Wennberg J. Geographic variation in expenditures for physicians’ services in the United States. N Engl J Med 1993;328:621-7.
15. Parchman ML, Culler S. Primary care physicians and avoidable hospitalizations. J Fam Pract 1994;39:123-8.
16. Krakauer H, Jacoby I, Millman M, Lukomnik JE. Physician impact on hospital admission and on mortality rates in the Medicare population. Health Serv Res 1996;31:191-211.
17. Krishan I, Drummond DC, Naessens JM, Nobrega FT, Smoldt RK. Impact of increased physician supply on use of health services: a longitudinal analysis in rural Minnesota. Public Health Rep 1985;100:379-86.
18. Briggs LW, Rohrer JE, Ludke RL, Hilsenrath PE, Phillips KT. Geographic variation in primary care visits in Iowa. Health Serv Res 1995;30:657-71.
19. Williams AP, Schwartz WB, Newhouse JP, Bennett BW. How many miles to the doctor? N Engl J Med 1983;309:958-63.
20. Allen DI, Kamradt JM. Relationship of infant mortality to the availability of obstetrical care in Indiana. J Fam Pract 1991;33:609-13.
21. Miller B, Ries L, Hankey B, Kosary C, Edwards B. Cancer statistics review: 1973-1989, National Cancer Institute, NIH Pub. No. 92-278; 1992;9.:
22. US Preventive Services Task Force. Guide to clinical preventive services, 2nd ed: US Dept of Health and Human Services; 1996.
23. Fox S, Murata P, Stein J. The impact of physician compliance on screening mammography for older women. Arch Intern Med 1991;151:50-6.
24. Fox S, Siu A, Stein J. The importance of physician communication on breast cancer screening of older women. Arch Intern Med 1994;154:2058-68.
25. Breen N, Kessler L. Changes in the use of screening mammography: evidence from the 1987 and 1990 National Health Interview Surveys. Am J Public Health 1994;84:62-7.
26. National Cancer Institute Breast Cancer Screening Consortium. Screening mammography: a missed clinical opportunity? JAMA 1990;264:54-8.
27. Lewis S, Jensen N. Screening sigmoidoscopy: factors associated with utilization. J Gen Intern Med 1996;11:542-4.
28. Vernon S. Participation in colorectal cancer screening: a review. J Natl Cancer Inst 1997;89:1406-22.
29. Escarce JJ. Explaining the association between surgeon supply and utilization. Inquiry 1992;29:403-15.
30. Escarce JJ. Would eliminating differences in physician practice style reduce geographic variations in cataract surgery rates? Med Care 1993;31:1106-18.
31. Schoen R, Weissfeld J, Kuller L. Sigmoidoscopy use among primary care physicians. Prev Med 1995;24:249-54.
32. American Cancer Society. Survey of physicians’ attitudes and practices in early cancer detection. CA Cancer J Clin 1990;40:77-101.
33. American Cancer Society. Survey of physicians’ attitudes and practices in early cancer detection. CA Cancer J Clin 1985;35:197-213.
34. Wigton RS, Nicolas JA, Blank LL. Procedural skills of the general internist. A survey of 2,500 physicians. Ann Intern Med 1989;111:1023-34.
35. Cooper G, Fortinsky R, Hapke R, Landefeld C. Factors associated with the use of flexible sigmoidoscopy as a screening test for the detection of colorectal carcinoma by primary care physicians. Cancer 1998;82:1476-81.
36. Leider P, Solberg R, Nesbitt T. Family physicians perception of economic incentives for the provision of office procedures. Fam Med 1997;29:318-20.
37. Ayanian J, Kohler B, Abe T, Epstein A. The relation between health insurance coverage and clinical outcomes among women with breast cancer. N Engl J Med 1993;329:326-31.
38. Diez-Roux A. Bringing context back into epidemiology: variables and fallacies in multilevel analysis. Am J Public Health 1998;88:216-22.
39. Hofer T, Wolfe R, Tedeschi P, McMahon L, Griffith J. Use of community verses individual socioeconomic data predicting variation in hospital use. Health Serv Res 1998;33:243-59.
40. Krieger N. Overcoming the absence of socioeconomic data in medical records: validation and application of a census-based methodology. Am J Public Health 1992;87:703-10.
41. Krieger N, Fee E. Social class: the missing link in U.S. health data. Intl J Health Serv 1994;24:25-44.
42. Shambaugh E, Weiss M. Summary staging guide: cancer surveillance epidemiology and end results reporting. Bethesda, MD: US Dept of Health Human Services, Public Health Service, National Institutes of Health; 1977.
43. Kenward K. The scope of the data available in the AMA’s Physician Masterfile. Am J Public Health 1996;86:1481-2.
44. Kindig D. Counting generalist physicians. JAMA 1994;271:1505-7.American College of Obstetrics and Gynecology. Obstetrician-gynecologists: specialists in reproductive health care and primary physicians for women. Washington, DC; 1986.
45. Shea J, Kletke P, Wozniak G, Polsky D, Escarce J. Self-reported physician specialties and the primary care content of medical practice: a study of the AMA Physician Masterfile. Med Care 1999;37:333-8.
46. Grumbach K, Becker S, Osborn E, Bindman A. The challenge of defining and counting general physicians: an analysis of Physician Masterfile data. Am J Public Health 1995;85:1402-7.
47. Williams P, Whitcomb M, Kessler J. Quality of the family physician component of the AMA Masterfile. J Am Board Fam Pract 1996;9:94-9.
48. Bindman AB, Grumbach K, Osmond D, et al. Preventable hospitalizations and access to health care. JAMA 1995;274:305-11.
49. Deyo R, Cherkin D, Ciol M. Adapting a clinical comorbidity index for use with ICD-9-CM administrative databases. J Clin Epidemiol 1992;45:613-9.
50. Charlson M, Pompei P, Ales K, Mackenzie C. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chron Dis 1987;40:373-83.
51. Hosmer D, Lemeshow S. Applied logistic regression. New York: John Wiley & Sons; 1989.
52. Kleinbaum D, Kupper L, Morgenstern H. Epidemiologic research: principles and quantitative methods. Belmont, Calif: Lifetime Learning Publication; 1982.
53. Rothman K. Modern epidemiology. Boston, Mass: Little, Brown and Co; 1986.
54. Greenland S. Modeling and variable selection in epidemiologic analysis. Am J Public Health 1989;79:340-9.
55. Liang K, Zeger S. Regression analysis for correlated data. Annu Rev Public Health 1993;14:43-68.
56. Liang K, Zeger S. Longitudinal data analysis using generalized linear models. Biometrika 1986;73:13-22.
57. Preisser J, Koch G. Categorical data analysis in public health. Annu Rev Public Health 1997;18:51-82.
58. Zhang J, Yu K. What’s the relative risk? A method of correcting the odds ratio in cohort studies of common outcomes. JAMA 1998;280:1690-1.
59. Levin B, Murphy G. Revision in American Cancer Society recommendations for the early detection of colorectal cancer. CA Cancer J Clin 1992;42:296-9.
60. Mettlin C, Dodd G. The American Cancer Society guidelines for the cancer-related checkup: an update. CA Cancer J Clin 1991;41:279-82.
61. Roetzheim RG, Pal N, Tennant C, et al. Effects of health insurance and race on early detection of cancer. J Natl Cancer Inst 1999;91:1409-15.
62. Greenfield S, Rogers W, Mangotich M, Carney MF, Tarlov AR. Outcomes of patients with hypertension and non-insulin dependent diabetes mellitus treated by different systems and specialties. Results from the medical outcomes study. JAMA 1995;274:1436-44.
63. Mahajan RJ, Barthel JS, Marshall JB. Appropriateness of referrals for open-access endoscopy. How do physicians in different medical specialties do? Arch Intern Med 1996;156:2065-9.
64. Drummond DC, Thom B, Brown C, Edwards G, Mullan MJ. Specialist versus general practitioner treatment of problem drinkers. Lancet 1990;336:915-8.
65. Ayanian JZ, Guadagnoli E, McNeil BJ, Cleary PD. Treatment and outcomes of acute myocardial infarction among patients of cardiologists and generalist physicians. Arch Intern Med 1997;157:2570-6.
66. Jollis J, DeLong E, Peterson E, et al. Outcome of acute myocardial infarction according to the specialty of the admitting physician. New Engl J Med 1996;335:1880-8.
67. Nash IS, Nash DB, Fuster V. Do cardiologists do it better? J Am Coll Cardiol 1997;29:475-8.
68. Ayanian JZ, Hauptman PJ, Guadagnoli E, Antman EM, Pashos CL, McNeil BJ. Knowledge and practices of generalist and specialist physicians regarding drug therapy for acute myocardial infarction. N Engl J Med 1994;331:1136-42.
69. Greenfield S, Nelson EC, Zubkoff M, et al. Variations in resource utilization among medical specialties and systems of care. Results from the medical outcomes study. JAMA 1992;267:1624-30.
70. Franks P, Fiscella K. Primary care physicians and specialists as personal physicians: health care expenditures and mortality experience. J Fam Pract 1998;47:105-9.
71. Stange K, Jaén C, Flocke S, Miller W, Crabtree B, Zyzanski S. The value of a family physician. J Fam Pract 1998;46:363-8.
72. Stange K, Flocke S, Goodwin M. Opportunistic preventive services delivery. J Fam Pract 1998;46:419-24.
73. Rosenblatt RA, Hart LG, Baldwin LM, Chan L, Schneeweiss R. The generalist role of specialty physicians: is there a hidden system of primary care? JAMA 1998;279:1364-70.
74. Dietrich A, Goldberg H. Preventive content of adult primary care: do generalists and subspecialists differ? Am J Public Health 1984;74:223-7.
75. Lurie N, Slater J, McGovern P, Ekstrum J, Quam L, Margolis K. Preventive care for women: does the sex of the physician matter? N Engl J Med 1993;329:478-82.
76. Roetzheim R, Fox S, Leake B. Physician-reported determinants of screening mammography in older women: the impact of physician and practice characteristics. J Am Geriatr Soc 1995;43:1-5.
77. Kreuter M, Strecher V, Harris R, Kobrin S, Skinner S. Are patients of women physicians screened more aggressively? A prospective study of physician gender and screening. J Gen Intern Med 1995;10:119-25.
78. Costanza M, Hoople N, Gaw V, Stoddard A. Cancer prevention practices and continuing education needs of primary care physicians. Am J Prev Med 1993;9:107-12.
79. Bergner M, Allison C, Diehr P, Ford L, Feigl P. Early detection and control of cancer in clinical practice. Arch Intern Med 1990;150:431-6.
80. Roetzheim R, Van Durme D, Brownlee H, Herold A, Pamies R, Woodard L. Compliance with screening mammography: a survey of primary care physicians. J Florida Med Assoc 1991;78:426-9.
81. Bartman BA, Clancy CM, Moy E, Langenberg P. Cost differences among women’s primary care physicians. Health Aff 1996;15:177-82.