Psychometric Properties of the Brazilian Version of GOHAI among Community-Dwelling Elderly People

• Published in: International journal of environmental research and public health Vol. 19; no. 22; p. 14725
• Main Authors: Vettore, Mario Vianna, Rebelo, Maria Augusta Bessa, Rebelo Vieira, Janete Maria, Cardoso, Evangeline Maria, Birman, Dina, Leão, Anna Thereza Thomé
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 09-11-2022; MDPI
• Subjects: Aged; Brazil; Correlation coefficient; Correlation coefficients; Data collection; Disease; Factor analysis; Health services; Humans; Independent Living; Likert scale; Older people; Oral Health; Oral hygiene; Perceptions; Population; Psychometrics; Quality of Life; Quantitative psychology; Questionnaires; Reliability analysis; Reproducibility of Results; Response rates; Social research; Surveys and Questionnaires; Teeth; Trends; Brazil; aged; psychometrics; oral health; quality of life
• ISSN: 1660-4601; 1661-7827; 1660-4601
• DOI: 10.3390/ijerph192214725

This study assessed the psychometric properties of the Brazilian version of the Geriatric Oral Health Assessment Index (GOHAI). A representative sample of 613 community-dwelling elderly people aged from 65 to 74 years was selected. Sociodemographic data, GOHAI and self-perceived oral health measures were collected. Dental clinical measures were obtained through oral examinations. The dimensional structure and adequacy of components were assessed using Confirmatory Factor Analysis (CFA), inter-item correlations and item-scale correlations. Reliability was evaluated by internal consistency and Intraclass Correlation Coefficients. Correlations between GOHAI scores and self-reported oral health measures were conducted to assess convergent validity. The relationship between dental clinical measures and GOHAI was tested through Poisson Regression to examine discriminant validity. The link between GOHAI items and dimensions was supported by CFA. Item 12 showed a poor factor loading. The inter-item correlations varied from 0.047 to 0.442, and item-scale correlations ranged from 0.305 to 0.612. Cronbach's alpha was 0.704. The test-retest correlation for GOHAI was 0.882. GOHAI scores were correlated by self-rated oral health measures. Poor dental clinical measures were associated with GOHAI. The Brazilian version of GOHAI showed adequate psychometric properties. However, the weak dimensional structure of GOHAI suggests the need to perform cross-cultural adaptation of GOHAI for Brazilian elderly people.