Evidence map›Paper›PMID 29752581›Full record

ArticleJournal of general internal medicine2018

Differences in Physician Income by Gender in a Multiregion Survey.

Eric A Apaydin, Peggy G C Chen, Mark W Friedberg

Open access · bronzeAbstract read
In one paragraph

Article in Journal of general internal medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
10.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Association Between Specialty-Specific Physician Salaries and Percentage of Women in the Workforce.Academic medicine : journal of the Association of American Medical Colleges · 2025
    Article
  3. Article
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  6. Factors associated with emergency physician income.Journal of the American College of Emergency Physicians open · 2023
    Article
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  11. Review
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  15. Article
  16. Gender-based differences in physician payments within the fee-for-service system in Ontario: a retrospective, cross-sectional study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2021
    Article
  17. Article
  18. The glass is half full: gender diversity in sleep medicine award recognition.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021
    Article
  19. Article
  20. Closing the gender pay gap in Canadian medicine.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2020
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Eric A ApaydinPardee RAND Graduate School, Santa Monica, CA, USA. eapaydin@rand.org.
Peggy G C ChenRAND Corporation, Santa Monica, CA, USA.
Mark W FriedbergRAND Corporation, Boston, MA, USA.
RAND Corporation · USFrederick S. Pardee RAND Graduate School · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have documented income differences between male and female physicians. However, the implications of these differences are unclear, since previous studies have lacked detailed data on the quantity and composition of work hours. We sought to identify the sources of these income differences using data from a novel survey of physician work and income.

objectiveTo compare differences in income between male and female physicians.

designWe estimated unadjusted income differences between male and female physicians. We then adjusted these differences for total hours worked, composition of work hours, percent of patient care time spent providing procedures, specialty, compensation type, age, years in practice, race, ethnicity, and state and practice random effects.

participantsWe surveyed 656 physicians in 30 practices in six states and received 439 responses (67% response rate): 263 from males and 176 from females. MAIN MEASURE: Self-reported annual income. KEY

resultsMale physicians had significantly higher annual incomes than female physicians (mean $297,641 vs. $206,751; difference $90,890, 95% CI $27,769 to $154,011) and worked significantly more total hours (mean 2470 vs. 2074; difference 396, 95% CI 250 to 542) and more patient care hours (mean 2203 vs. 1845; difference 358, 95% CI 212 to 505) per year. Male physicians were less likely than female physicians to specialize in primary care (49.1 vs. 70.5%), but more likely to perform procedures with (33.1 vs. 15.5%) or without general anesthesia (84.3 vs. 73.1%). After adjustment, male physicians' incomes were $27,404 (95% CI $3120 to $51,688) greater than female physicians' incomes.

conclusionsAdjustment for multiple possible confounders, including the number and composition of work hours, can explain approximately 70% of unadjusted income differences between male and female physicians; 30% remains unexplained. Additional study and dedicated efforts might be necessary to identify and address the causes of these unexplained differences.

Indexed as

PhysiciansFemaleHealth Services ResearchHumansIncomeMalePersonnel Staffing and SchedulingPhysicians, WomenSex FactorsUnited Statesdisparitieshealth services researchreimbursementsurvey researchworkforce

Identifiers

PMID29752581
PMCPMC6109018
OpenAlexW2802919156

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.