J Korean Acad Oral Health.  2015 Mar;39(1):63-68. 10.11149/jkaoh.2015.39.1.63.

Diagnostic predictability of self-reported questionnaire for periodontitis

• Jin HJ
• Kim BI
• Park DY
• Jeong SH
• Bae KH
• Kim JB
• Jeong SH
• Lee HR
• Woo GJ
• Choi YH

• KMID: 2321509
• DOI: http://doi.org/10.11149/jkaoh.2015.39.1.63

Abstract

OBJECTIVES
The present study aimed to evaluate the validity of a set of self-reported questionnaires for periodontitis for estimating the prevalence of chronic adult periodontitis in the Korean population.
METHODS
The questionnaire is comprised of a total of 14 questions with four summarized concepts including self-diagnosis of oral status, subjective signs related to oral health, smoking and drinking status, and use of auxiliary oral hygiene devices including scaling. The predictiveness of the measures from these self-reported questions was assessed by logistic regression modeling using receiver operating characteristic (ROC) statistics, sensitivity, and specificity.
RESULTS
The sensitivity, specificity, and AUC including all questions were 0.571, 0.768, and 0.781, respectively; the sum of sensitivity and specificity was 1.34. To gain robustness, a simplified predictive model was built with six questions. Its results were 0.536, 0.817, and 0.762 for sensitivity, specificity, and AUC, respectively. The sum of sensitivity and specificity was found to be 1.35.
CONCLUSIONS
The self-reported questionnaire for periodontitis showed considerable validity, but further study is required to provide optimal validity and predictability.

Keyword

Periodontal disease; ROC; Sensitivity; Specificity

MeSH Terms

Area Under Curve
Chronic Periodontitis
Drinking
Logistic Models
Oral Health
Oral Hygiene
Periodontal Diseases
Periodontitis*
Prevalence
Surveys and Questionnaires*
ROC Curve
Sensitivity and Specificity
Smoke
Smoking
Smoke

Figure

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  Fig. 1. ROC curve for model I.

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  Fig. 2. ROC curve for model II.

Reference

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