Table 6.

Parent as proxy for VPI subjects response: Intra-Class Correlation Coefficient for VPI subjects and parents

Domain Description	All Ages n=29*	<10 years n=16*	10–15years n=13*
	ICC+ (95% CI)	ICC+ (95% CI)	ICC+ (95% CI)
Total Score	0.71 (0.51–0.89)	0.80 (0.63–0.98)	0.62 (0.28–0.96)
Speech Limitation	0.68 (0.48–0.88)	0.60 (0.30–0.92)	0.71 (0.44–0.99)
Swallowing	0.70 (0.51–0.89)	0.91 (0.82–0.99)	0.63 (0.30–0.96)
Situational Difficulty	0.65 (0.45–0.87)	0.69 (0.43–0.95)	0.65 (0.33–0.97)
Emotional Impact	0.71 (0.53–0.89)	0.89 (0.78–0.99)	0.44 (0.00–0.89)
Perception by Others	0.60 (0.37–0.83)	0.79 (0.61–0.98)	0.33 (0.00–0.82)

^*number of VPI subjects

⁺Intra-class correlation coefficient