Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, Beijing, China.
Dental Public Health, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.
Gerodontology. 2020 Jun;37(2):143-152. doi: 10.1111/ger.12434. Epub 2019 Jul 26.
The Oral Health Impact on Daily Life Questionnaire (OHIDL) was developed through a qualitative study to measure oral health-related quality of life, including intensity and bother measurements, among older adults in Hong Kong. The instrument comprises 20 items divided into eight domains.
This study describes the psychometric properties of the OHIDL and refines the instrument through validity and reliability testing.
The OHIDL was administered to older adults who attended dental clinics for general dental treatments. Items with low discriminant ability were to be eliminated. Construct validity was assessed through convergent, divergent and factorial validity. Criterion validity was investigated by assessing the correlation between the measurements and the global questions. Reliability was assessed with Cronbach's alpha.
In total, 306 participants (mean age: 69.6 years) completed the interviews. Two items for which over 90% of the participants reported no impact and two items with poor discriminant validity were eliminated. Both intensity and bother measurements demonstrated good construct and criterion validity, with the intensity measurement showing better performance being selected for the OHIDL to reduce the respondents' burden. The intensity measurement also showed satisfactory internal consistency.
The refined OHIDL with 16 items in seven domains is valid and reliable in measuring the oral health impacts on daily life among Hong Kong older adults.
《口腔健康生活影响问卷》（OHIDL）是通过一项定性研究开发的，用于测量香港老年人的口腔健康相关生活质量，包括强度和困扰测量。该工具包含 20 个项目，分为 8 个领域。
本研究描述了 OHIDL 的心理测量特性，并通过有效性和可靠性测试对该工具进行了改进。
OHIDL 被用于参加一般牙科治疗的牙科诊所的老年人。具有低鉴别能力的项目将被删除。通过收敛、发散和因子有效性评估构建有效性。通过评估测量结果与全球问题之间的相关性来研究标准有效性。使用 Cronbach's alpha 评估可靠性。
共有 306 名参与者（平均年龄：69.6 岁）完成了访谈。有两个项目超过 90%的参与者报告没有影响，有两个项目的鉴别力较差，被删除。强度和困扰测量均显示出良好的结构和标准有效性，选择强度测量来减轻受访者的负担，表现更好。强度测量也表现出令人满意的内部一致性。
经过改进的 OHIDL 包含 7 个领域的 16 个项目，在测量香港老年人日常生活中的口腔健康影响方面具有有效性和可靠性。
