Skip to main content

Table 3 Wilcoxon's signed-rank test to identify significant difference in terms of image quality and absorbed dose

From: Low-dose protocol of the spiral CT in orthodontics: comparative evaluation of entrance skin dose with traditional X-ray techniques

Ā 

LC + PAC + PR

Low-dose CT

P value

Image quality

Satisfactory (3)

Excellent (5)

<0.05

Mean absorbed dose (mGy)

0.45

0.51

NS

  1. The level of significance was set at P < 0.05. NS, not statistically significant.