March 2021

Volume 38, Issue 1

Is the Performance of a Periodontal Prediction Model for Identification of Diabetes affected by Participants’ Characteristics?

Authors: Arwa Talakey Francis Hughes Hani Almoharib Mansour AlAskar Eduardo Bernabe
doi: 10.1922/CDH_00083-2020Talakey06

Abstract

Objective: To evaluate whether the diagnostic accuracy of a novel periodontal prediction model (PPM) for identification of adults with diabetes varies according to participants’ characteristics. Basic Research Design: The study was carried out among 250 adults attending primary care clinics in Riyadh (Saudi Arabia). The study adopted a case-control approach, where diabetes status was first ascertained, and data collection carried out afterwards using questionnaires and periodontal examinations. Variations in the performance of the PPM by demographic (sex and age), socioeconomic (education) and behavioural factors (smoking status and last dental visit) were evaluated using receiver-operating characteristic (ROC) regression. Results: The PPM including 3 periodontal parameters (missing teeth, percentage of sites with pocket depth ≥6mm and mean pocket depth) had an area under the ROC curve (AUC) of 0.69 (95% Confidence Interval: 0.61-0.78), which dropped to 0.64 (95% CI: 0.53-0.75) after adjustment for covariates. Larger variations in performance were found by participants’ sex, age and education, but not by smoking status or last dental visit. The PPM performed better among male (adjusted AUC: 0.76; 95% CI: 0.53 to 0.99), younger (0.67; 95% CI: 0.50 to 0.84) and less educated participants (0.76; 95% CI: 0.60, 0.92). Conclusions: The diagnostic accuracy of a novel periodontal prediction model to identify individuals with diabetes varied according to participants’ characteristics. This study highlights the importance of adjusting for covariates on studies of diagnostic accuracy. Keywords: Periodontitis, Diabetes Mellitus, Statistical regression, ROC analysis, Confounding Factors

£10 single article

Other articles in this issue

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Acknowledgement of Reviewers 2-2 £10 single article
Editorial: Migrant and refugee Oral Health 3-4 £10 single article
Dental public health in action: foundation dentists’ delivery of an oral health promotion outreach project for people experiencing homelessness in London 5-9 £10 single article
Characteristics of teenagers who use dental floss 10-14 £10 single article
Evaluating the environmental impact of the Welsh national childhood oral health improvement programme, Designed to Smile 15-20 £10 single article
Concurrent heavy use of general and oral health services among Finnish adults 21-25 £10 single article
Cost Benefit Analysis of Two Oral health Improvement Programmes 26-32 £10 single article
Is the Performance of a Periodontal Prediction Model for Identification of Diabetes affected by Participants’ Characteristics? 33-38 £10 single article
Impact of the national program More Smiles for Chile on women’s quality of life 39-43 £10 single article
Neoliberalism and Indigenous oral health inequalities: a global perspective 44-47 £10 single article
Oral Health of African Immigrants: A participatory approach to needs assessment 48-52 £10 single article
Oral health status and risk determinants in adult Syrian refugees in Jordan 53-58 £10 single article
Subjective and objective social status: associations with psychosocial predictors and oral health 59-63 £10 single article
John Roberts Obituary 64-64 £10 single article

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