Assessment of oral health-related quality of life and periodontal state in patients with end-stage renal disease: a comparison study using propensity score-matched analysis.

BACKGROUND

The purpose of this study was to examine the periodontal state and oral health-related quality of life (OHRQoL) of patients with end-stage renal disease (ESRD) and the effect of ESRD on OHRQoL by comparison with age- and sex-matched systemic healthy controls with similar periodontal status levels.

MATERIAL AND METHODS

Fifty patients with ESRD and 150 healthy individuals without ESRD were recruited. Medical characteristics were recorded for the test group and periodontal examination was performed in both groups. A structured Korean version of the Oral Health Impact Profile (OHIP-14K) questionnaire for subjective evaluation of OHRQoL was administered. To evaluate the effect of ESRD on OHRQoL, 50 healthy controls who had been matched for age, sex, and periodontal status were selected and compared with ESRD patients by using propensity score-matched analysis.

RESULTS

ESRD patients had significantly higher mean score of Community Periodontal Index and mean numbers of missing teeth compared with the controls (P < 0.05). Mean OHIP-14K total score and mean scores of all subdomains were significantly higher in the test group than in the controls (P < 0.05). Even after matching analysis, mean OHIP-14K total score and mean scores of subdomains were significantly higher in the test group than in the control group (P < 0.05), except in one subdomain (physical pain).

CONCLUSIONS

Within the limitations of this investigation, the present study showed worse periodontal state and lower level of OHRQoL in ESRD patients compared with those in healthy subjects. Through comparison with matched healthy controls, ESRD was found to have a negative effect on OHRQoL.