University of Oulu

Saujanya, K. (2018). Adaptation and validation of a nepali version of the child-oral impacts on daily performances index(C-oidp). Community Dental Health, 35, 119–126.

Adaptation and validation of a Nepali version of the Child-Oral Impacts on Daily Performances Index (C-OIDP)

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Author: Karki, Saujanya1; Laitala, Marja-Liisa1; Humagain, Manoj2;
Organizations: 1Research Unit of Oral Health Sciences, Department of Cariology, Endodontology and Pediatric Dentistry, University of Oulu, Finland
2School of Medical Sciences, Kathmandu University, Nepal
3Department of Mathematical Sciences, University of Oulu, Finland
4Medical Research Center, University of Oulu and Oulu University Hospital, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.2 MB)
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Language: English
Published: British Association for the Study of Community Dentistry, 2018
Publish Date: 2023-05-02


The need for culturally validated measures of Oral Health-Related Quality of Life (OHRQoL) has been increasing in recent years.

Objectives: To adapt the Child-Oral Impacts on Daily Performances (C-OIDP) index into the Nepali language and to validate it, to assess and compare the outcomes of self-reported oral problems, and to validate a structured questionnaire on general hygiene practices, oral hygiene practices, dietary habits, and use of tobacco.

Basic research design: A school-based cross-sectional study on pilot and national samples.

Participants: Nepalese schoolchildren representing WHO index age groups (5–6-year-olds, 12-year-olds, and 15-year-olds). The study was conducted on a pilot sample (n=128) selected conveniently and a national sample (n=1,052), selected from 18 sampling sites on the basis of the stratified random sampling method

Main outcome measures: Adapted and validated Nepali C-OIDP

Results: The Nepali C-OIDP showed excellent validation and reliability tests in both studies. The Cronbach’s alpha coefficients were 0.82 and 0.71 respectively in the pilot and national study. The most common self-reported oral problem was toothache, which was statistically significantly higher in the national sample.

Conclusions: The Nepali C-OIDP index is valid and reliable for measuring oral impacts on daily performance among schoolchildren of Nepal.

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Series: Community dental health
ISSN: 0265-539X
ISSN-E: 2515-1746
ISSN-L: 0265-539X
Volume: 35
Issue: 2
Pages: 119 - 126
DOI: 10.1922/CDH_4164Saujanya08
Type of Publication: A1 Journal article – refereed
Field of Science: 313 Dentistry
Copyright information: © BASCD 2018.