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Table 2 Serum TSH levels (mU/L) in total population and subgroups categorized by age

From: Using Hashimoto thyroiditis as gold standard to determine the upper limit value of thyroid stimulating hormone in a Chinese cohort

  Percentile
Age (yr) Sample No. 2. 5th 5th Median 95th 97.5th
A. total
 19–29 845 0.53 0.73 1.80 4.45 5.50
 30–39 1060 0.51 0.73 1.85 4.42 4.98
 40–49 662 0.61 0.73 1.94 4.99 5.61
 50–59 289 0.65 0.70 1.92 5.45 7.49
B. non-HT
 19–29 799 0.56 0.75 1.79 4.33 5.19
 30–39 989 0.52 0.74 1,82 4.06 4.62
 40–49 616 0.62 0.73 1.91 4.31 5.26
 50–59 265 0.65 0.70 1.86 4.58 5.67
C. HT
 19–29 46 0.37 0.74 2.33 8.48 21.67
 30–39 71 0.02 0.46 2.43 9.50 18.86
 40–49 46 0.03 0.33 3.29 8.34 24.26
 50–59 24 0.56 0.73 3.17 14.77 15.50