Health measurement for oral health-related quality of life

口腔健康相关生活质量（OHQOL）是近年来口腔医学领域的研究热点。选择口腔健康影响特征（OHIP）作为研究日本人群OHQOL的适当措施。最初的OHIP被翻译成日语。为了验证日语版口腔健康影响概况（OHIP-J）是否适合年轻人和中年人使用，我使用OHIP-J和自我评级口腔健康、假牙佩戴、缺失牙齿数量、工作类型、职业等级、性别和年龄等项目的数据进行了分析。那些认为自己的口腔健康状况不佳的受访者的调整后的OHIP-J总分高于那些没有这样做的人。此外，缺牙变量与OHIP-J总分和分量表评分显著相关，与性别、年龄和义齿佩戴无关。这些研究结果表明，OHIP-J适用于评估日本年轻人和中年人的口腔健康相关生活质量。然而，翻译过程并没有严格遵守这些建议的准则。由于OHIP-J由49个项目组成，分为7个分量表，因此编制了一个用于青年和中年人的简短版本的OHIP-J，并评估其属性。我们从OHIP-J（OHIP-JA 18）中推导出18个项目的子集，分为四个分量表：“功能限制”，“身体疼痛”，“心理不适”和“残疾和障碍”。OHIP-JA 18捕获了四个分量表，这些分量表基于一个新的概念框架，一个简化的ICIDH健康模型OHIP-JA 18的口腔健康适应证明了可接受的测量参数（内部一致性地板效应，结构效度和反应性），以证明其用于年轻和中年日本工人的OHQOL结果评估的合理性。

Oral health-related quality of life (OHQOL) has been an area of growing research interest in dentistry in recent years. The Oral Health Impact Profile (OHIP) was selected as an appropriate measure for studying the OHQOL in a Japanese population. The original OHIP was translated into Japanese. To validate the Japanese version of the Oral Health Impact Profile (OHIP-J) for use among young and middle-aged adults, I analyzed using data involved items for the OHIP-J and selfrated oral health, denture wearing, number of missing teeth, work type, occupational rank, gender, and age. The adjusted total OHIP-J scores for respondents who rated their oral health as poor were higher than those who did not. In addition, the variable of missing teeth was significantly associated with the OHIP-J total and subscale scores independent of gender, age and denture wearing. These findings suggest that the OHIP-J is suitable for assessing the Oral health-related quality of life of young and middle-aged adults in Japan. However, the translation process did not strictly adhere to these recommended guidelines. In this respect the OHIP-J had limitations for the use for cross-cultural research.Because the OHIP consists of 49 items grouped into seven subscales lengthily a short-form version of OHIP-J was derived for use in young and middle-aged adults, and to evaluate its properties. We derived a subset of 18 items from OHIP-J (OHIP-JA18), grouped into four subscales : "functional limitation", "physical pain", "psychological discomfort", and "disability & handicap". The OHIP-JA18 captures four subscales that are based on a new conceptual framework, a simplified Locker's adaptation for oral health of the ICIDH model of health OHIP-JA18 demonstrated acceptable measurement parameters (internal consistency floor effect, construct validity, and responsiveness) to justify its use in outcome assessment for the OHQOL of young and middle-aged Japanese workers.