Assessment of the Effects of Low-Level Laser Therapy on the Thyroid Vascularization of Patients with Autoimmune Hypothyroidism by Color Doppler Ultrasound

Table 2

Comparison of the observed frequencies of normal or abnormal vascularization determined by post-intervention color Doppler ultrasound in the L and P groups.

Vascularization	Post-LLLT; 𝑛 (%)	Postplacebo; 𝑛 (%)	Total; 𝑛 (%)	𝑃 value^●
Normal vascularization	16 (18.6)	5 (5.8)	21 (24.4)
Abnormal vascularization; (increased or decreased)	30 (34.9)	35 (40.7)	65 (75.6)
Total	46 (53.5)	40 (46.5)	86 (100)	0.023 *

LLLT: low-level laser therapy; ^●: Ficher’s exact test at after intervention;
*: 𝑃<0.05.