Health measurement for oral health-related quality of life

口腔健康相关生活质量（OHQOL）是近年来口腔医学研究的热点之一。选择口腔健康影响概况（OHIP）作为研究日本人群口腔健康质量的适当措施。最初的OHIP被翻译成日语。为了验证日文版口腔健康影响概况（OHIP-J）在青年和中年人中的应用，我使用OHIP-J和自评口腔健康、假牙佩戴、缺牙数量、工作类型、职业级别、性别和年龄的数据进行了分析。那些认为自己口腔健康较差的受访者的调整后OHIP-J总分高于那些认为自己口腔健康较差的受访者。缺牙变量与OHIP-J总分和亚量表得分显著相关，与性别、年龄和假牙佩戴无关。这些发现表明OHIP-J适用于评估日本中青年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指导方针。在这方面，OHIP-J在跨文化研究中有其局限性。由于OHIP由49个项目组成，分为7个子量表，因此衍生出了OHIP- j的简短版本，用于青壮年和中年人，并评估其特性。我们从OHIP-J （OHIP-JA18）中导出了一个包含18个项目的子集，分为四个子量表：“功能限制”、“身体疼痛”、“心理不适”和“残疾与障碍”。OHIP-JA18包含四个子量表，基于一个新的概念框架，即ICIDH健康模型的简化Locker口腔健康适应。OHIP-JA18展示了可接受的测量参数（内部一致性地板效应、结构效度和响应性），以证明其在日本中青年工人OHQOL结果评估中的应用是合理的。

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.