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Table 3 Construct validity: rank correlation between total scale and subscales with malocclusion and caregivers’ educational background

From: Cross-cultural adaptation and validation of a Brazilian version of an instrument to assess impairments related to oral functioning of people with Down syndrome

Variable Malocclusion a Caregivers’ schooling background b
  r P-value* r P-value*
Total scale 0.22 0.04 −0.16 0.05
Subscales   
 Eating 0.12 0.27 0.01 0.86
 Communication 0.05 0.68 −0.19 0.02
 Parafunction 0.13 0.24 0.03 0.70
 Symptoms 0.27 0.01 −0.24 <0.01
  1. a n=82 / b n=151.
  2. **Spearman’s correlation coefficient, significance level of 0.05.