Funding for this research was provided by:
Chulalongkorn University (Grants for Development of New Faculty Staff, Ratchadaphiseksomphot Endowment Fund, Chulalongkorn University.)
Text and Data Mining valid from 2019-10-15
Received: 17 March 2019
Accepted: 30 September 2019
First Online: 15 October 2019
Ethics approval and consent to participate
: This cross-sectional study was based on data from the 2014 national survey of older Thai people, which was performed in accordance with the Declaration of Helsinki under the Royal Thai Parliament Acts of Statistics (2007). This secondary data analysis study was approved by the Human Research Ethics Committee of the Faculty of Dentistry, Chulalongkorn University (study code: HREC-DCU 2017–059). We declare that consent was obtained from all study participants.
: Not applicable. This study was based on secondary data from the 2014 national survey of older Thai people. To carry out the oral health survey in Thailand, the consent of all participants was obtained.
: The authors declare that there are no competing interests in this study.