Table 3.

Thyroid tumor weight changes comparison (χ̄±s, mg).

Group	Cases	Thyroid tumor weight
Group LI
6 weeks	30	2.01±0.24
12 weeks	30	4.19±0.52*,**
Group NI
6 weeks	30	1.97±0.21
12 weeks	30	2.32±0.34*
Group HI
6 weeks	30	2.03±0.35
12 weeks	30	4.27±0.49*,**

^*Compared with 6 weeks, P<0.05;

^**compared with group NI, P<0.05.