Making the Distinction Between Sex and Gender

Which  term should be used in research studies?

  The number of published scientific articles examining  male and female differences in orthopaedic medical conditions has increased  during the past 25 years due to the National Institutes of Health  Revitalization Act of 1993, which ensured the inclusion of women and minorities  in clinical research. However, publications have inconsistently used the terms  "sex" or "gender" to describe differences between males and females in  research. The reason for such an inconsistency may be due to a lack of  knowledge about the difference between the terms sex and gender.

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