Table 2

Reliability of each item

Item
Kappa
P value

Appearance items


Appearance of tongue when lifted
0.54
<0.01
Elasticity of frenulum
0.53
<0.01
Length of lingual frenulum when tongue lifted
0.51
<0.01
Attachment of lingual frenulum to tongue
0.39
<0.01
Attachment of lingual frenulum to inferior alveolar ridge
0.62
<0.01
Function items


Lateralization
0.71
<0.01
Lift of tongue
0.67
<0.01
Extension of tongue
0.65
<0.01
Spread of anterior tongue
-0.02
0.74
Cupping
0.01
0.44
Peristalsis
0.05
0.07
Snapback
0.03
0.38

Amir et al. International Breastfeeding Journal 2006 1:3   doi:10.1186/1746-4358-1-3