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Appendicitis: higher risk in Mexican Americans?

V A Lawrence1, M R Tuley, A K Diehl

  • 1Department of Medicine, Audie L. Murphy Memorial Veterans Hospital, San Antonio, Texas, USA.

Ethnicity & Health
|September 1, 1996
PubMed
Summary

Mexican Americans (MAs) undergo appendectomy more frequently than White non-Hispanics (WNHs). This suggests a potentially higher risk of appendicitis among MAs, warranting further investigation into ethnic disparities in surgical procedures.

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Area of Science:

  • Public Health
  • Surgical Outcomes
  • Health Disparities

Background:

  • Mexican Americans (MAs) exhibit distinct health profiles compared to White non-Hispanics (WNHs), with higher rates of certain diseases but lower rates of others.
  • Existing research on ethnic variations in disease incidence is limited, particularly concerning surgical procedures.

Purpose of the Study:

  • To confirm known ethnic differences in disease incidence using surgical procedure data.
  • To investigate the hypothesis that MAs have a higher incidence of appendectomy compared to WNHs.

Main Methods:

  • A retrospective analysis of surgical procedures was conducted at two South Texas teaching hospitals.
  • Proportional Operation Ratios (PORs) were calculated to compare appendectomy rates between MAs and WNHs.

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  • PORs were used as a proxy for proportional incidence, similar to proportional mortality ratios.

    • Main Results:

    • MAs showed significantly higher proportional rates of appendectomy than WNHs at both hospitals (PORs of 1.41 and 1.75, p < 0.0001).
    • Additional findings corroborated known ethnic disparities in procedures for biliary tract operations, vascular access for hemodialysis, lung cancer, and coronary artery bypass.

    Conclusions:

    • The study supports the hypothesis that Mexican Americans undergo appendectomy more frequently than White non-Hispanics.
    • This elevated rate suggests a potentially higher risk of appendicitis among the MA population.