Pilot and Validation Study Periodontitis and CAT Score – Can the COPD assessment tool provide a valid statement on periodontitis risk and dental status?

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00017309

Enrollment

150

Registered

2019-06-04

Start date

2019-04-16

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

J44.8

Interventions

Group 1: Survey of CAT (COPD Assessment Test) Score, DMFT (Decay-missing-filled teeth) Index, OHIP 14 (Oral Health Impact Profile) and PSI Score (Pneumonia Severity Index).

Eligibility

Sex/Gender

All

Age

40 Years to 99 Years

Inclusion criteria

Inclusion criteria: • Signed consent • =20 Pack Years • Patient age =40 years

Exclusion criteria

Exclusion criteria: • Patient age <40 years • Mental retardation • Missing consent • Patients who have received periodontal therapy in the last 6 months • Patients who are taking medications (antibiotics) that have been shown to affect dental status • Patients with other systemic diseases (HIV / tuberculosis / malignant events)

Design outcomes

Primary

Measure	Time frame
The sensitivity of the CAT (COPD Assessment Test) score to predict poor tooth status as measured by the DMFT (Decay-missing-filled index) index and PSI (Pneumonia severity index) score is examined. The data is collected during the outpatient presentation at the dentist. This marks the time of measuring the Primary endpoint. The study for the patient ends the same day the patients are approached. After successful data collection, the evaluation begins. The area under a prepared ROC (Receiver Operating Characteristic) curve will be analyzed to achieve a clinically useful recommendation in terms of sensitivity and specificity in using this tool. In addition, the positive predictive and negative predictive value is determined and the optimal cut-off value of the CAT score is calculated and discussed using Youden's index.	—

Measure

Time frame

The sensitivity of the CAT (COPD Assessment Test) score to predict poor tooth status as measured by the DMFT (Decay-missing-filled index) index and PSI (Pneumonia severity index) score is examined. The data is collected during the outpatient presentation at the dentist. This marks the time of measuring the Primary endpoint. The study for the patient ends the same day the patients are approached. After successful data collection, the evaluation begins. The area under a prepared ROC (Receiver Operating Characteristic) curve will be analyzed to achieve a clinically useful recommendation in terms of sensitivity and specificity in using this tool. In addition, the positive predictive and negative predictive value is determined and the optimal cut-off value of the CAT score is calculated and discussed using Youden's index.

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Secondary

Measure	Time frame
An analysis of the OHIP 14 questionnaire (Oral Health Impact Profile) will be conducted to determine if there is a decreased oral health associated quality of life in the panel examined in this study. This questionnaire will also be evaluated the same day the patients present themselves in the outpatient dental clinic, therefore marks the time of measuring the secondary endpoint. After successful data collection the questionnaires will be evaluated. For this purpose, the collected data is set in relation to existing norm values ??and interpreted.	—

Measure

Time frame

An analysis of the OHIP 14 questionnaire (Oral Health Impact Profile) will be conducted to determine if there is a decreased oral health associated quality of life in the panel examined in this study. This questionnaire will also be evaluated the same day the patients present themselves in the outpatient dental clinic, therefore marks the time of measuring the secondary endpoint. After successful data collection the questionnaires will be evaluated. For this purpose, the collected data is set in relation to existing norm values ??and interpreted.

—

Countries

Germany

Contacts

Public ContactDaniel Majorski

Kliniken der Stadt Köln

majorskid@kliniken-koeln.de0221890718434

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026