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. 2007 Apr;42(2):706–726. doi: 10.1111/j.1475-6773.2006.00634.x

Table 1.

Variable Definitions

Variable Definition Source
Individual level
Female Female physician CTS-PS
Black Black physician CTS-PS
Hispanic Hispanic physician CTS-PS
Asian Physician who is Asian/Pacific Islander
Experience Experience as a physician in years CTS-PS
(Experience)2 (Experience)2/100 CTS-PS
Family practice Specialty in family medicine CTS-PS
Pediatrics Specialty in pediatrics CTS-PS
Medical specialty Specialty in medical specialty CTS-PS
Surgical specialty Specialty in surgical specialty CTS-PS
Board certified Board certified in specialty CTS-PS
D.O. Doctor of Osteopathy CTS-PS
Non-U.S., non-Canadian Attended medical school outside of U.S. or Canada CTS-PS
LnW Natural log of implicit earnings per hour = Ln([annual income]/[(hours/week)(weeks/year)]) CTS-PS
Site level
B—population Percent of the general population that is black ARF
H—population Percent of the general population that is Hispanic ARF
A—population Percent of the general population that is Asian/Pacific Islander
B—workforce Percent of physician workforce that is black CTS-PS
H—workforce Percent of physician workforce that is Hispanic CTS-PS
A—workforce Percent of physician workforce that is Asian/Pacific Islander CTS-PS
Public insurance Percent of population enrolled in Medicaid or other public insurance CTS-HS
Private insurance Percent of population enrolled in private or military insurance CTS-HS
Medicare Percent of population enrolled in Medicare CTS-HS
Median income Median family income for the general population ($1,000s) USC

CTS-PS, Community Tracking Study, Physician Survey; CTS-HS, Community Tracking Study, Household Survey; USC, U.S. Census; ARF, Area Resource File; D.O., Doctor of Osteopathy.