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Table 3 Reliability analysis based on item-total score correlation and test-retest correlation

From: Validation of a Dutch version of the Geriatric Oral Health Assessment Index (GOHAI-NL) in care-dependent and care-independent older people

GOHAI item Corrected Item-Total score Correla-tion Cronbach's Alpha if Item Deleted Test-retest correla-tion ICCa Corrected Item-Total score Correla-tion Cronbach’s Alpha if Item Deleted Test-retest correla-tion ICCa
  Group A Group B
1. Limit the kinds of food 0.65 0.84 0.75 0.61 0.77 0.91
2. Trouble biting or chewing 0.67 0.84 0.81 0.53 0.78 0.91
3. Able to swallow comfortably 0.34 0.86 0.62 0.08 0.83 0.74
4. Unable to speak clearly 0.63 0.84 0.86 0.40 0.79 0.94
5. Able to eat without discomfort 0.49 0.85 0.78 0.67 0.77 0.74
6. Limit contact with people 0.43 0.85 0.64 0.47 0.80 0.79
7. Pleased with look of teeth 0.62 0.84 0.68 0.58 0.78 0.69
8. Used medication to relieve pain 0.51 0.85 0.74 0.53 0.79 0.81
9. Worried about teeth, gums or dentures 0.60 0.84 0.80 0.51 0.78 0.64
10. Self-conscious of teeth, gums or dentures 0.69 0.84 0.79 0.52 0.79 0.73
11. Uncomfortable eating in front of others 0.74 0.83 0.88 0.61 0.78 0.64
12. Sensitive to hot, cold or sweet foods 0.20 0.87 0.73 0.43 0.79 0.82
  1. aICC Intraclass correlation coefficient; applied to subsamples of group A (n = 32) and B (n = 34)