A randomised controlled trial comparing palate surgery at 6 months versus 12 months of age (the TOPS trial): a statistical analysis plan

Table 1 Calculating the VPC sum

Component	Classification	Score for component
Hypernasality	Within normal limits	0
	Mild resonance	1
	Moderate/severe resonance	2
Non-oral errors	0–2 errors	0
	3–5 errors	1
	≥ 6 errors	2
Velopharyngeal insufficiency symptoms	0–2 symptoms	0
	3–5 symptoms	1
	≥ 6 symptoms	2

ISSN: 1745-6215