Table 3 Cronbach’s alpha coefficient for child impact section and family impact section assessed separately
|  | Complete Correlation of corrected items | Cronbach’s alpha if item deleted |
|---|---|---|
Child Impact Section | ||
 1 Oral/dental pain | .669 | .839 |
 2.Difficulty in drinking | .653 | .841 |
 3.Difficulty in eating | .707 | .839 |
 4.Difficulty in pronouncing words | .595 | .841 |
 5.Missed pre-school/school | .655 | .841 |
 6.Difficulty in sleeping | .707 | .840 |
 7.Irritable or frustrated | .770 | .837 |
 8.Avoided smiling or laughing | .703 | .840 |
 9.Avoided talking | .722 | .842 |
Family Impact Section | ||
 10.Been upset | .618 | .840 |
 11.Felt guilty | .477 | .843 |
 12.Work | .637 | .841 |
 13.Financial | .614 | .842 |
ECOHIS total scale | .847 | Â |