Barrêtto Eliane Reis, Paiva Saul Martins, Pordeus Isabela Almeida, Ferreira e Ferreira Efigênia
Specialist pediatric dentistry in private practice and doctoral student School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Pediatr Dent. 2011 May-Jun;33(3):228-32.
The purpose of the present study was to test the reliability and validity of a novel child dental pain questionnaire (child-DPQ).
The child-DPQ is structured to measure toothache using 3 subscales: (1) prevalence; (2) severity; and (3) impact on daily life. It was tested on 174 8- and 9-year-old children. The instrument's reliability was assessed by testing internal and test-retest consistency, and its validity was assessed by testing construct and discriminant validity. Specifically, discriminant validity was tested by comparing the mean scores of 2 clinical groups: (1) absent or treated caries (N =110); and (2) untreated caries (N =64).
Internal consistency was confirmed by a Cronbac's alpha coefficient of 0.93. Test-retest reliability was found to be highly reproducible (intraclass correlation coefficient=0.99). The construct validity was satisfactory, demonstrating highly significant correlations among the global indicator, the total score, and subscale scores (P<.001). The child-DPQ score was able to discriminate between the 2 clinical groups (P<.001).
The present study provides evidence for the reliability and validity of the child dental pain questionnaire in assessing the impact of toothache on the daily life of children.
本研究旨在测试一种新型儿童牙科疼痛问卷（child-DPQ）的信度和效度。
child-DPQ旨在通过3个分量表来测量牙痛：（1）患病率；（2）严重程度；（3）对日常生活的影响。该问卷在174名8岁和9岁儿童中进行了测试。通过测试内部一致性和重测一致性来评估该工具的信度，并通过测试结构效度和区分效度来评估其效度。具体而言，通过比较2个临床组的平均得分来测试区分效度：（1）无龋或已治疗龋齿组（N = 110）；（2）未治疗龋齿组（N = 64）。
Cronbach's α系数为0.93，证实了内部一致性。重测信度具有高度可重复性（组内相关系数 = 0.99）。结构效度令人满意，表明总体指标、总分和分量表得分之间存在高度显著的相关性（P <.001）。child-DPQ得分能够区分这2个临床组（P <.001）。
本研究为儿童牙科疼痛问卷在评估牙痛对儿童日常生活影响方面的信度和效度提供了证据。
