The Change of Thyroid Stimulating Hormone Values of Healthy Subjects According to Temperature and Aging / 고신대학교의과대학학술지
Kosin Medical Journal
;
: 125-134, 2014.
Article
in Korean
| WPRIM
| ID: wpr-149024
ABSTRACT
OBJECTIVES:
We conducted a study to investigate the normal range for TSH and within-individual variations of TSH according to temperature and aging. PATIENTS ANDMETHODS:
We enrolled patients who underwent periodic medical examinations five times over a six year period (2007.8~2013.6). Anthropometric data and thyroid ultrasonography were evaluated, and serum TSH, T3, and T4 were assayed.RESULTS:
Subjects were 19-64 years old, 120 were female, and 208 were male. Reference ranges for TSH were 0.53-4.94 mIU/L in the first test, 0.49-5.61 mIU/L in the second test, 0.46-6.06 mIU/L in the third test, 0.48-5.99 mIU/L in the fourth test, and 0.52-6.3 mIU/L in the fifth test. When the TSH level was analyzed according to temperature and sex, mean TSH was higher in months in which the average monthly temperatures were below 10degrees C in Jinju, Gyeongnam and female. The aging and low temperatures are associated with increased serum TSH concentrations in the within-individual.CONCLUSIONS:
This study showed that aging is associated with increased serum TSH concentrations in the within-individual and serum TSH concentrations are different in the within-individual according to the temperature.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Reference Values
/
Thyroid Gland
/
Aging
/
Thyrotropin
/
Ultrasonography
Type of study:
Diagnostic study
Limits:
Female
/
Humans
/
Male
Language:
Korean
Journal:
Kosin Medical Journal
Year:
2014
Type:
Article
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