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Validity of screening methods for periodontitis using salivary hemoglobin level and self-report questionnaires in people with disabilities

 Sun Hei Nam  ;  Hoi In Jung  ;  Si Mook Kang  ;  Daisuke Inaba  ;  Ho Keun Kwon  ;  Baek Il Kim 
 JOURNAL OF PERIODONTOLOGY, Vol.86(4) : 536-545, 2015 
Journal Title
Issue Date
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Alveolar Bone Loss/diagnosis ; Area Under Curve ; Attitude to Health ; Disabled Persons* ; Female ; Hemoglobins/analysis* ; Humans ; Male ; Mass Screening/statistics & numerical data* ; Middle Aged ; Periodontal Index ; Periodontal Pocket/diagnosis ; Periodontitis/diagnosis* ; Predictive Value of Tests ; ROC Curve ; Reproducibility of Results ; Saliva/chemistry* ; Self Report* ; Sensitivity and Specificity ; Smoking ; Surveys and Questionnaires ; Tooth Mobility/diagnosis ; Young Adult
Disabled persons ; ROC curve ; hemoglobins ; periodontal index ; periodontitis ; self-report
BACKGROUND: The aim of this study is to evaluate the validity of screening methods in predicting periodontitis in people with disabilities using the objective salivary hemoglobin level, a subjective self-report questionnaire, and a combined model of the two methods with demographic characteristics.

METHODS: The participants were 195 patients with disabilities aged >18 years who were examined using the community periodontal index (CPI), salivary hemoglobin level, and answers to 10 self-report questions (n = 192). Multivariable logistic regression and receiver operating characteristic (ROC) curve analysis were performed to evaluate the validity of the methods and the combined model in predicting the prevalence of ≥CPI 3 (probing depth [PD] ≥4 mm) or CPI 4 (PD ≥6 mm).

RESULTS: Overall, 75.9% of the study group (148 of 195) were diagnosed with ≥CPI 3, and 38.5% of the study group (75 of 195) were diagnosed with CPI 4. The areas under the ROC curve (AUCs) of the salivary hemoglobin level were 0.578 (sensitivity of 41% and specificity of 77%) and 0.662 (sensitivity of 53% and specificity of 75%) for predicting the prevalence of ≥CPI 3 and CPI 4, respectively. Multivariable modeling incorporating four different questions for predicting ≥CPI 3 or CPI 4 indicated higher AUCs of 0.710 and 0.732, respectively, yielding higher sensitivity (55% for ≥CPI 3 and 69% for CPI 4) than that of salivary hemoglobin level. The most useful prediction models for ≥CPI 3 or CPI 4 were combined models, which yielded AUCs of 0.773 and 0.807, respectively, with sensitivity values of 70% and specificity values >75%.

CONCLUSION: The salivary hemoglobin level, self-report questionnaire, and the combined method demonstrated screening potential that could predict the population prevalence of ≥CPI 3 or CPI 4.
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2. College of Dentistry (치과대학) > Dept. of Preventive Dentistry and Public Oral Health (예방치과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Others (기타) > 1. Journal Papers
Yonsei Authors
Kang, Si-Mook(강시묵) ORCID logo https://orcid.org/0000-0003-2341-3636
Kwon, Ho Keun(권호근)
Kim, Baek Il(김백일) ORCID logo https://orcid.org/0000-0001-8234-2327
Jung, Hoi In(정회인) ORCID logo https://orcid.org/0000-0002-1978-6926
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