Safety and Efficacy of Low-Level Laser Therapy in Autoimmune Thyroiditis: Long-Term Follow-Up Study

Table 2

Comparison between the frequency of nodules in groups L and P 6 years after the conclusion of the RCT (M2).

Main outcome	Group L	Group P	Total (%)	value
Frequency of nodules	3 (12%)	3 (16.7%)	43 (100%)	0.663

Binomial test.