Table 2: Comparison of thyroid volume studies.

AuthorGenderAge range (years)Number of subjectsThyroid volume (mL) ± SDCountry

Current study75 M
28 F
19–29 103 Sudan
Ivanac et al. [23]20–3851 Croatia
Ahidjo et al. [24]71 M
72 F
23–69143 Nigeria
Chanoine et al. [25]17–20256 Belgium
Adibi et al. [26]123 M
77 F
200 Iran