Mortazavi Shiva, Enshaei Zahra, Farajzadegan Ziba
Dental Research Centre, Department of Pediatric Dentistry, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
Department of Community Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Int J Prev Med. 2017 Nov 7;8:92. doi: 10.4103/ijpvm.IJPVM_256_17. eCollection 2017.
The aim of the present study was to develop a dental caries risk assessment tool for Iranian preschoolers.
In a validation and cross-sectional study, a random sample of 150 preschool children was involved. This study was conducted in three phases: questionnaire design (expert panel and peer evaluation), questionnaire testing (pilot evaluation and field testing), and validation study. The initial assessments include interview, dental examination, and laboratory investigations. Validity and reliability indices, content validity index (CVI), content validity ratio (CVR), impact score, and test-retest and Cronbach's alpha were measured. Decayed, missing, filled teeth (dmft) scores were calculated according to the WHO guidelines.
The Iranian version of caries risk assessment (CRA) questionnaire contained 17 items. Cronbach's alpha coefficient (0.86) indicated a suitable internal consistency. The mean scores for the CVI and the CVR were 0.87 and 0.78, respectively. The prevalence rate of dental caries in the study group was 69.3%, and the mean dmft was 4.57 (range 0-19).
The Persian version of CRA questionnaire was adapted to the Iranian population. The findings demonstrated overall acceptable validity and also reliability in the application of test-retest. The results of the present study provide initial evidence that the designed CRA form could be a useful tool for CRA in the Iranian preschoolers.
本研究的目的是为伊朗学龄前儿童开发一种龋齿风险评估工具。
在一项验证性横断面研究中，纳入了150名学龄前儿童的随机样本。本研究分三个阶段进行：问卷设计（专家小组和同行评估）、问卷测试（预试验评估和现场测试）以及验证研究。初始评估包括访谈、牙科检查和实验室检查。测量了效度和信度指标、内容效度指数（CVI）、内容效度比（CVR）、影响得分以及重测信度和克朗巴哈系数。根据世界卫生组织指南计算龋失补牙（dmft）得分。
伊朗版龋齿风险评估（CRA）问卷包含17个项目。克朗巴哈系数（0.86）表明具有合适的内部一致性。CVI和CVR的平均得分分别为0.87和0.78。研究组的龋齿患病率为69.3%，平均dmft为4.57（范围0 - 19）。
波斯语版CRA问卷适用于伊朗人群。研究结果表明该问卷在重测应用中具有总体可接受的效度和信度。本研究结果提供了初步证据，表明所设计的CRA表格可能是伊朗学龄前儿童龋齿风险评估的有用工具。
