Table 1 The Alpha’s Cronbach for each OHIP-14 domain and total score

From: Oral health-related quality of life (OHRQoL) in cardiovascular patients referring to Fatima Zahra Hospital in Sari, Iran

Domain		Cronbach’s alpha	Item
1	Functional limitation	0.259	1. Trouble pronouncing words
1	Functional limitation	0.259	2. Sense of taste worse
2	Physical pain	0.552	3. Painful aching in mouth
2	Physical pain	0.552	4. Uncomfortable to eat
3	Psychological discomfort	0.927	5. Self-conscious
3	Psychological discomfort	0.927	6. Felt tense
4	Physical disability	0.965	7. Unsatisfactory diet
4	Physical disability	0.965	8. Had to interrupt meals
5	Psychological disability	0.909	9. Difficult to relax
5	Psychological disability	0.909	10. Embarrassed
6	Social disability	0.925	11. Irritability with others
6	Social disability	0.925	12. Difficulty doing usual jobs
7	Handicap	0.815	13. Felt life less satisfying
7	Handicap	0.815	14. Totally unable to function
Total		0.953

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