Psychometric properties of the Malay Fonseca Anamnestic Index for temporomandibular disorders

ABSTRACT

Objective

This study translated/cross-culturally adapted the Fonseca Anamnestic Index (FAI) for temporomandibular disorders (TMDs) into Malay and psychometrically tested the Malay-FAI (FAI-M).

Methods

The FAI-M was created according to international guidelines. Internal consistency/test-retest reliability were assessed with Cronbach’s alpha/intra-class correlation (ICC) coefficients. Construct and convergent validity were appraised by relating the FAI-M to the Global Oral Health (GOH) questionnaire and Short-form Oral Health Impact Profile (S-OHIP) using Kruskal-Wallis and Spearman’s rho correlation (α = 0.05).

Results

Of the 243 participants enrolled, 54.7% (n = 133) had no TMDs, while TMDs were present in 45.3% (n = 110). The FAI-M presented very good internal consistency (α = 0.90) and test-retest reliability (ICC = 0.99). Theoretically predicted FAI-M score patterns matched the GOH categories, and strong correlations were discerned between FAI-M and S-OHIP (r_s = 0.71).

Conclusion

The FAI-M exhibited good psychometric properties and can be applied in Malay-speaking populations.

KEYWORDS:

• Temporomandibular disorders
• translation
• reliability
• validity
• prevalence

Acknowledgments

The authors would like to thank the staff of the Faculty of Dentistry, Universiti Malaya for supporting this research.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This study was funded by research grant [<#AWARD-ID;>DPRG/01/017</#AWARD-ID;>] awarded by the Dental Research Management Center (DRMC), Faculty of Dentistry, Universiti Malaya.