BACKGROUND Oral Health Related Quality of Life (OHRQoL) measures play an important role in understanding subjective patient experiences in oral health care. The Oral Impact on Daily Performance (OIDP) scale is a validated OHRQoL tool that measures the impact and extent to which an individual's daily activities may be compromised by their oral health. It is commonly used to facilitate oral health service planning. The aim of this study was to modify and validate a Sinhalese version of the OIDP for use in Sri Lankan adolescents. METHODS Stage I involved cultural adaptation of the tool through translation and modification. Stage II involved the exploring factor structure, validation and a reliability assessment. After translation and cultural adaptation, stage II was conducted among 220 secondary school students aged 15-19 in the Gampaha district, Sri Lanka. Participants completed the modified OIDP scale along with questions on self-reported perceived oral health problems and treatment need which were used to assesses the concurrent validity of the modified OIDP scale. Factorability was assessed by inspection of correlation matrix and Kaiser-Meyer-Olkin and Bartlett's Test of Sphericity tests as a measure of sampling adequacy. An exploratory factor analysis was carried out using Principal Component Analysis method and factors were rotated using the oblimin method. RESULTS The Kaiser-Meyer-Olkin measure was 0.87 and Bartlett's test of Sphericity was significant (p < 0.001) Cronbach's alpha was calculated as 0.88, indicating a high level of internal consistency of the modified OIDP scale. The principal component analysis produced two factors with Eigen values ranging from 1.12 to 4.40, explaining 70.0% of total variance. Concurrent validity was satisfactory as the OIDP score increased when the adolescents' perceived oral health decreased. The final modified OIDP consists of eight self-reported items which assesses the impact severity of eight daily performances over past three months. Participant scores ranged from 0 to 24 out of a worst possible score of 40, and nearly 48% of the responders reported at least one impact during past three months. The most prevalent oral health impact related to chewing and enjoying foods, reported by 36.8% of respondents. CONCLUSION This study suggests that the modified OIDP scale has promising psychometric properties and is appropriate for use among adolescents in Sri Lanka. Further research is required to test the validity of this tool in other cohorts.

中文翻译：

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斯里兰卡青少年对日常行为的口腔影响（OIDP）量表：一项横断面修改和验证研究。

背景技术与口腔健康相关的生活质量（OHRQoL）措施在理解口腔保健中的主观患者体验方面起着重要作用。“对日常表现的口腔影响”（OIDP）量表是经过验证的OHRQoL工具，用于衡量个人日常活动可能受到口腔健康影响的影响和程度。它通常用于促进口腔保健服务计划。这项研究的目的是修改和验证OIDP的僧伽罗语版本，以供斯里兰卡青少年使用。方法第一阶段涉及通过翻译和修改对工具进行文化适应。第二阶段涉及探索因素结构，验证和可靠性评估。经过翻译和文化适应之后，第二阶段是在斯里兰卡Gampaha区的220名15-19岁的中学生中进行的。参与者完成了修改后的OIDP量表以及有关自我报告的感知口腔健康问题和治疗需求的问题，这些问题用于评估修改后的OIDP量表的同时有效性。通过检查相关矩阵，Kaiser-Meyer-Olkin和Bartlett的“球形度测试”测试来评估可分解性，以衡量抽样是否充分。使用主成分分析法进行探索性因素分析，并使用奥林明法旋转因素。结果Kaiser-Meyer-Olkin测度为0.87，Bartlett的球形度检验显着（p <0.001）Cronbach's alpha计算为0.88，表示修改后的OIDP量表的内部一致性很高。主成分分析产生了两个特征值在1.12至4.40之间的因素，解释了总方差的70.0％。当青少年感知到的口腔健康降低时，OIDP评分会提高，因此并发有效性令人满意。最终的OIDP修改版由八个自我报告的项目组成，这些项目评估了过去三个月中八项日常表演的影响严重性。参与者的分数介于0到24之间（最差的分数为40），并且近48％的受访者表示在过去三个月中至少有一种影响。36.8％的受访者报告说，最普遍的口腔健康影响与咀嚼和享用食物有关。结论这项研究表明，修改后的OIDP量表具有良好的心理测验特性，适合斯里兰卡的青少年使用。需要进一步的研究来测试该工具在其他队列中的有效性。