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Table 4 Reliability analysis based on the corrected item-total correlation and Cronbach’s alpha coefficient if item deleted

From: Validation of the Spanish version of the Oral Health Impact Profile (OHIP-14Sp) in elderly Chileans

Impact item

Corrected item-total correlation

Cronbach’s Alfa if item deleted

1 Breath stale

0.52

0.90

2 Digestion worse

0.62

0.90

3 Sensitive teeth

0.42

0.91

4 Toothache

0.50

0.90

5 Dental problems made you miserable

0.72

0.89

6 Felt uncomfortable about the appearance

0.75

0.89

7 Speech unclear

0.62

0.90

8 Others misunderstood

0.72

0.90

9 Sleep interrupted

0.58

0.90

10 Upset

0.72

0.89

11 Less tolerant of others

0.52

0.90

12 Difficulty doing jobs

0.50

0.90

13 Unable function

0.75

0.89

14 Unable to work

0.57

0.90

Global

0.91