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. 2016 Mar 2;17(2):255–263. doi: 10.3348/kjr.2016.17.2.255

Table 5. Association of Each Clinical Risk Factor with Final US Assessment.

P
Age < 20 or > 60 0.007
Gender 0.723
1st degree family history 0.009
Solitary lesion on US 0.777
Serum TSH value
 Mean TSH level (mIU/L) 0.001
 TSH grade (3 categories) 0.001
 TSH grade (2 categories) 0.168

P values from χ2-square test or independent two sample t test. TSH = thyroid stimulating hormone, US = ultrasonography