Table 5 

Thyroid volume (Tvol) and goitre prevalence in children (n = 419) and women (n = 405), stratified for examiners 1 and 2, before and after the correction of examiner 2's Tvol. 

Examiner 1 (n = 406) 
Examiner 2 (n = 418) 
Pvalue 



Before correction 
After correction 



Children, (n) 
209 
210 
210 
 
Tvol (mL), median (P_{25}P_{75}) 
5.7 (4.37.6) 
3.3 (2.34.2) 
4.6 (3.26.0) 
<0.001^{c} 
Goitre^{a }n (%) 
112 (69) 
18 (11) 
75 (44) 
<0.001^{d} 
Women, (n) 
197 
208 
208 
 
Tvol (mL), median (P_{25}P_{75}) 
10.3 (8.612.9) 
5.8 (4.67.6) 
8.3 (6.610.8) 
<0.001^{c} 
Goitre^{b }n (%) 
11 (6) 
2 (1) 
7 (3) 
0.01/0.34^{d} 


^{a}International reference values for Tvol for age [5] ^{b}Thyroid enlargement was defined as a Tvol exceeding 18 ml for women [16] ^{c}MannWhitney test (examiner 1 and examiner 2, same pvalue before and after correction) ^{d}Chisquare test (examiner 1 and examiner 2, before and after correction) 

Henjum et al. Nutrition Journal 2010 9:66 doi:10.1186/14752891966 