Department of Psychology, Universidad de Nariño, Pasto, Colombia.
Caries Res. 2017;51(3):244-254. doi: 10.1159/000468993. Epub 2017 May 13.
The aim of this study was to test the hypothesis that, for patients with dental caries, the Spanish version of the Revised Illness Perception Questionnaire for Oral Health (IPQ-R-OH) has 7 dimensions, including personal and treatment control, timeline-acute/chronic and timeline-cyclical, illness coherence, consequences, and emotional representations.
A Spanish adaptation of the IPQ-R, with a self-reported 38-item scale, was developed. Exploratory and confirmatory factor analyses were conducted using data from 520 patients with dental caries attending the Dental Clinic at Universidad Cooperativa de Colombia, Pasto, Colombia.
Exploratory factor analysis revealed 7 dimensions with 36 items (2 items were removed because of poor factor loadings or discriminant ability). The internal consistency coefficients of each factor ranged from 0.72 to 0.91, and all item loadings were >0.52. Confirmatory factor analysis indicated that a 7-factor model with 36 items had superior fit compared to the 38-item original model: χ2 = 1,784.291 (df = 573, p < 0.001); nonnormal fit index = 0.941; comparative fit index = 0.946; root mean square error of approximation = 0.062 (90% CI = 0.057-0.066); standardized root mean square residual = 0.072; and Akaike information criterion = 638.291. Control (integrated by items from personal control, treatment control, and timeline-acute factors) and hopelessness (PC15 and PC17) were the 2 reconfigured factors that were identified.
These findings suggest that the modified 36-item model has satisfactory reliability and construct factorial validity; therefore, it could be a valuable instrument in the screening of illness perceptions in oral health.
本研究旨在验证这样一个假设，即对于患有龋齿的患者，西班牙版修订后的口腔健康疾病感知问卷（IPQ-R-OH）具有 7 个维度，包括个人和治疗控制、时间线-急性/慢性和时间线-周期性、疾病连贯性、后果和情绪表现。
开发了一种西班牙语版的 IPQ-R，包括一个自我报告的 38 项量表。使用来自哥伦比亚库珀ativa 大学牙科诊所的 520 名龋齿患者的数据进行了探索性和验证性因素分析。
探索性因素分析显示，有 7 个维度和 36 个项目（由于因子负荷或判别能力差，有 2 个项目被删除）。每个因子的内部一致性系数在 0.72 到 0.91 之间，所有项目的负荷均大于 0.52。验证性因素分析表明，与 38 项原始模型相比，具有 36 个项目的 7 因子模型具有更好的拟合度：χ2=1.784.291（df=573，p<0.001）；非正态拟合指数=0.941；比较拟合指数=0.946；近似均方根误差=0.062（90%CI=0.057-0.066）；标准化均方根残差=0.072；Akaike 信息准则=638.291。控制（由个人控制、治疗控制和时间线急性因素的项目组成）和绝望（PC15 和 PC17）是确定的 2 个重构因子。
这些发现表明，经过修改的 36 项模型具有令人满意的可靠性和结构有效性；因此，它可能是口腔健康疾病感知筛查的一种有价值的工具。
