Key Points
  1. Computational modeling was used to investigate race and gender differences on normal nasal physiology.
  2. Our findings suggest that East Asians had the largest median nasal volume, while Caucasians had the smallest median nasal volume. However, Blacks demonstrated the largest variability in the distribution of nasal cavity volume.
  3. As expected, males had a larger distribution of nasal cavity volume than females. Furthermore, Caucasian females had the smallest average nasal volume, whereas Black males had the largest average nasal volume.
  4. Blacks had the largest median nasal index and Caucasians had the smallest median nasal index. In terms of gender differences, males had a slightly larger median nasal index than females.
  5. Median nasal resistance was lowest for East Asians and highest among Caucasians; however, nasal resistance between both genders was not significantly different.