Table 2 Pairwise comparison among growth phases (a) and dentoskeletal classifications (b) of forehead protrusion

(a)

Index

Child-Teenager

Child-Adult

Teenager-Adult

All samples

<0.001**

<0.001**

0.025*

 Male

<0.001**

<0.001**

< 0.001**

 Female

0.037*

0.025*

0.908

 Class I

0.004*

<0.001**

0.010*

 Class II

<0.001**

<0.001**

0.325

 Class III

0.563

0.213

0.526

(b)

Index

Class I-Class II

Class I-Class III

Class II-Class III

All samples

0.465

<0.001**

0.009*

 Male

0.483

0.004*

0.031*

 Female

0.053

0.213

0.526

 Child

0.170

0.165

0.005*

 Teenager

0.299

0.075

0.019*

 Adult

0.953

<0.001**

<0.001**