Appukuttan D P, Vinayagavel M, Balasundaram A, Damodaran L K, Shivaraman P, Gunasshegaran K
Department of Periodontics, SRM Dental College and Hospital, Chennai, Tamil Nadu, India.
Ann Med Health Sci Res. 2015 Nov-Dec;5(6):413-22. doi: 10.4103/2141-9248.177987.
Oral health has an impact on quality of life hence for research purpose validation of a Tamil version of General Oral Health Assessment Index would enable it to be used as a valuable tool among Tamil speaking population.
In this study, we aimed to assess the psychometric properties of translated Tamil version of General Oral Health Assessment Index (GOHAI-Tml).
Linguistic adaptation involved forward and backward blind translation process. Reliability was analyzed using test-retest, Cronbach alpha, and split half reliability. Inter-item and item-total correlation were evaluated using Spearman rank correlation. Convenience sampling was done, and 265 consecutive patients aged 20-70 years attending the outpatient department were recruited. Subjects were requested to fill a self-reporting questionnaire along with Tamil GOHAI version. Clinical examination was done on the same visit. Concurrent validity was measured by assessing the relationship between GOHAI scores and self-perceived oral health and general health status, satisfaction with oral health, need for dental treatment and esthetic satisfaction. Discriminant validity was evaluated by comparing the GOHAI scores with the objectively assessed clinical parameters. Exploratory factor analysis was done to examine the factor structure.
Mean GOHAI-Tml was 52.7 (6.8, range 22-60, median 54). The mean number of negative impacts was 2 (2.4, range 0-11, median 1). The Spearman rank correlation for test-retest ranged from 0.8 to 0.9 (P < 0.001) for all the 12 items between visits. The Cronbach alpha for 265 samples was 0.8 suggesting good internal consistency and homogeneity between items. Item scale correlation ranged from 0.4 to 0.8 (P < 0.001). Concurrent and discriminant validity was established. Principal component analysis resulted in extraction of four factors which together accounted for 66.4% (7.9/12) variance.
GOHAI-Tml has shown acceptable psychometric properties, so that it can be used as an efficient tool in identifying the impact of oral health on quality of life among the Tamil speaking population.
口腔健康会影响生活质量，因此出于研究目的，对泰米尔语版的一般口腔健康评估指数进行验证，将使其能够成为泰米尔语人群中一个有价值的工具。
在本研究中，我们旨在评估翻译后的泰米尔语版一般口腔健康评估指数（GOHAI-Tml）的心理测量特性。
语言改编包括正向和反向盲译过程。使用重测法、克朗巴哈系数和分半信度分析信度。使用斯皮尔曼等级相关评估项目间和项目与总分的相关性。采用便利抽样，招募了连续就诊于门诊的265例年龄在20至70岁之间的患者。要求受试者填写一份自我报告问卷以及泰米尔语版GOHAI。在同一次就诊时进行临床检查。通过评估GOHAI得分与自我感知的口腔健康、总体健康状况、口腔健康满意度、牙科治疗需求和美学满意度之间的关系来测量同时效度。通过将GOHAI得分与客观评估的临床参数进行比较来评估区分效度。进行探索性因素分析以检验因素结构。
GOHAI-Tml的均值为52.7（6.8，范围22 - 60，中位数54）。负面影响的平均数为2（2.4，范围0 - 11，中位数1）。两次就诊之间所有12个项目的重测斯皮尔曼等级相关在0.8至0.9之间（P < 0.001）。265个样本的克朗巴哈系数为0.8，表明项目间具有良好的内部一致性和同质性。项目与量表的相关性在0.4至0.8之间（P < 0.001）。建立了同时效度和区分效度。主成分分析提取出四个因素，它们共同解释了66.4%（7.9/12）的方差。
GOHAI-Tml已显示出可接受的心理测量特性，因此它可以作为一种有效的工具，用于识别口腔健康对泰米尔语人群生活质量的影响。
