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. 2006 Nov;21(11):1167–1171. doi: 10.1111/j.1525-1497.2006.00592.x

Table 1.

Comparison of Inflation Adjusted Income, Work Effort, Provider and Practice Characteristics of General Internists, by Race and Gender

Inflation adjusted annual income (2004 dollars) General Internists

Male Female


White $196,024 Black $179,151 White $136,201 Black $113,535
Physician work effort
 Total annual visits completed 5,339 6,254 4,154 5,487
 Total annual hours worked 2,905 3,341 2,542 3,064
Provider characteristics
 Years in medical practice (mean) 16.6 12.6 10.3 9.1
  < 10 y (%) 30.2 56.6 54.8 61.9
  10 to 19 y (%) 39.3 30.2 38.3 38.1
  20 to 29 y (%) 21.0 3.8 6.4 0.0
  30 y or more (%) 9.6 9.4 0.7 0.0
 Ownership interest, and board certification
  Physician is an employee (%) 36.4 50.0 62.0 68.2
  Physician is board certified (%) 85.7 41.5 85.9 47.6
Practice characteristics
 Census region of practice
  Northeast census region (%) 23.5 15.1 27.9 28.6
 North Central census region (%) 21.1 30.2 23.8 14.3
 Southern census region (%) 34.4 47.2 27.5 57.1
  Western census region (%) 21.1 7.5 20.5 0.0
 Practice setting
  Less than 50,000 population (%) 7.2 9.4 6.4 0.0
 Population between 50,000 and 500,000 (%) 25.5 7.5 18.7 28.6
  Population greater than 500,000 (%) 67.4 83.0 74.8 71.4
 Service population
  Proportion of patients on Medicaid (%) 9.3 22.4 11.3 36.6
  Proportion providing Medicare services (%) 99.1 98.1 96.0 100