Horm Metab Res 2021; 53(09): 634-637
DOI: 10.1055/a-1430-3456
Letter to the Editor

Reference Intervals for Thyroid Hormones During the First Trimester of Gestation: A Report from an Area with a Sufficient Iodine Level

Maryam Kianpour
1   Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, I. R. Iran
,
1   Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, I. R. Iran
,
Massoud Amini
1   Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, I. R. Iran
,
Awat Feizi
2   Department of Epidemiology and Biostatics, Isfahan University of Medical Sciences, Isfahan, I. R. Iran
,
Mohsen Janghorbani
2   Department of Epidemiology and Biostatics, Isfahan University of Medical Sciences, Isfahan, I. R. Iran
,
Saeideh Shokri
3   Department of Radiology, Isfahan University of Medical Sciences, Isfahan, I. R. Iran
,
Sima Aminorroaya Yamini
4   Sheffield Hallam University, Department of Engineering and Mathematics, Sheffield, South Yorkshire, UK
,
Maryam Farghadani
3   Department of Radiology, Isfahan University of Medical Sciences, Isfahan, I. R. Iran
,
Ali Hekmatnia
3   Department of Radiology, Isfahan University of Medical Sciences, Isfahan, I. R. Iran
,
Hossien Gharib
5   Mayo Clinic Minnesota, Department of Endocrinology, Rochester, Minnesota, USA
› Author Affiliations

A concern was raised [1] regarding the number of pregnant women in the analysis of reference range for the thyroid hormones in pregnancy [2], where we reported 185 cases and it was believed to be 145 cases.



Publication History

Article published online:
12 August 2021

© 2021. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 
  • References

  • 1 Nanda R. Importance of setting up reference intervals and multiple of medians (MoM). Horm Metab Res. 2021 53. in press
  • 2 Kianpour M, Aminorroaya A, Amini M. et al Reference intervals for thyroid hormones during the first trimester of gestation: A report from an area with a sufficient iodine level. Horm Metab Res 2019; 51: 165-171
  • 3 Bestwick JP, John R, Maina A. et al Thyroid stimulating hormone and free thyroxine in pregnancy: expressing concentrations as multiples of the median (MoMs). Clin Chim Acta 2014; 430: 33-37
  • 4 Alvan R. Principles of Medical Statistics. First Edition London: Chapman and Hall; 2001: 39