Pentapati Kalyana Chakravarthy, Chenna Deepika, Kumar Vijay S, Kumar Nanditha
Department of Public Health Dentistry, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
Department of Immunohematology and Blood Transfusion, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
BMC Oral Health. 2025 Feb 11;25(1):220. doi: 10.1186/s12903-025-05496-3.
To evaluate the pooled estimates of Cronbach's alpha of the Oral Impacts on Daily Performance (OIDP) questionnaire and explore the moderators that could have influenced the overall estimate.
A systematic search of common databases such as PubMed, Scopus, EMBASE, and CINAHL was performed from inception till 13th December 2024. Studies in English and those that reported Cronbach's alpha values for the OIDP questionnaire were included. Studies reported as letters, conference proceedings, or abstracts; secondary analysis of the previous data; studies with alpha values reported for pilot studies; modified versions of the OIDP questionnaires; induced reliability estimates; retracted articles; short communications; and commentaries were excluded. Two review authors independently screened the publications. The information collected included year of publication, country, sample size, age, sex distribution, target population, language of administration, mode of administration, study setting, study design, patient selection, Cronbach's alpha, and the number of items in the questionnaire. The risk of bias assessment was performed via the COSMIN checklist. Reliability Generalization Meta-analysis was performed via the random effects model (restricted maximum likelihood method) to obtain a pooled untransformed Cronbach's alpha.
A total of 1069 publications were available for screening, and 54 publications yielded 63 estimates with a sample size of 92,564 (sample size range: 47-12647). The overall pooled Cronbach's alpha was 0.82 (95% CI = 0.8-0.84), with high heterogeneity (I = 99.75%; Q = 26702.91). Meta-regression revealed no effects of moderators such as sex (coefficient: 0.02), age (coefficient: 0), language (coefficient: 0), population type (coefficient: 0), continent (coefficient: -0.02), or mode of administration (coefficient: -0.03) on the overall estimate.
The overall estimate of the Cronbach alpha for OIDP questionnaire was above the accepted benchmark. There was no effect of moderators such as sex, age, language, population type, continent, or mode of administration on the overall estimate.
评估口腔影响日常生活表现（OIDP）问卷的Cronbach's alpha系数的合并估计值，并探索可能影响总体估计值的调节因素。
从数据库建库至2024年12月13日，对PubMed、Scopus、EMBASE和CINAHL等常见数据库进行系统检索。纳入英文研究以及报告了OIDP问卷Cronbach's alpha系数值的研究。排除以信函、会议论文集或摘要形式发表的研究；既往数据的二次分析；报告了预试验alpha系数值的研究；OIDP问卷的修改版本；诱导可靠性估计值；撤稿文章；简短通讯；以及评论。两位综述作者独立筛选出版物。收集的信息包括发表年份、国家、样本量、年龄、性别分布、目标人群、施测语言、施测方式、研究背景、研究设计、患者选择、Cronbach's alpha系数以及问卷中的条目数。通过COSMIN清单进行偏倚风险评估。采用随机效应模型（限制最大似然法）进行可靠性概括性Meta分析，以获得合并的未转换Cronbach's alpha系数。
共有1069篇出版物可供筛选，54篇出版物产生了63个估计值，样本量为92564（样本量范围：47 - 12647）。总体合并Cronbach's alpha系数为0.82（95%CI = 0.8 - 0.84），异质性较高（I = 99.75%；Q = 26702.91）。Meta回归显示，性别（系数：0.02）、年龄（系数：0）、语言（系数：0）、人群类型（系数：0）、大洲（系数： - 0.02）或施测方式（系数： - 0.03）等调节因素对总体估计值无影响。
OIDP问卷Cronbach alpha系数的总体估计值高于公认基准。性别、年龄、语言、人群类型、大洲或施测方式等调节因素对总体估计值无影响。
