J Korean Acad Oral Health.  2022 Jun;46(2):56-62. 10.11149/jkaoh.2022.46.2.56.

A study on trends of dental caries disparities according to household income level of children and adolescents using data from the Korea National Health and Nutrition Examination Survey

• Jung SH

• KMID: 2530813
• DOI: http://doi.org/10.11149/jkaoh.2022.46.2.56

Abstract

Objectives
The purpose of this study is to investigate the trend of dental caries inequalities according to the household income level of children and adolescents, using data from Wave 4 (2007-2009) to Wave 7 (2016-2018) of the Korea National Health and Nutrition Examination Survey (KNHANES).
Methods
The raw data were obtained from the website of KNHANES. The data by year within each wave were integrated and used for the analysis. In accordance with the guidebook for data users, the experience rate and prevalence rate of dental caries in primary and permanent teeth were estimated. Additionally, the absolute difference (AD) between the lowest and highest household income levels and the prevalence ratio (PR) by household income level were calculated.
Results
The AD in the experience rate of dental caries showed a tendency to marginally decrease in primary teeth and moderately increase in permanent teeth. The PR was not statistically significant (P＞0.05) in all waves. The AD in the prevalence rate of dental caries decreased by 5.4% and 8.2% in primary and permanent teeth, respectively. The PR in Wave 7 showed that all statistical significance disappeared (P＞0.05).
Conclusions
In Korean children and adolescents, dental caries inequalities by household income level showed a tendency to gradually decrease in primary or permanent teeth, and statistical significance was no longer confirmed.

Keyword

Children and adolescents; Dental caries; Household income level; Inequality; The KNHANES

Reference

References

1. Peres MA, Macpherson LMD, Weyant R, Daly B, Venturelli R, Mathur MR, et al. 2019; Oral diseases: a global public health challenge. Lancet. 394:249–260. DOI: 10.1016/S0140-6736(19)31146-8. PMID: 31327369. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069526361&origin=inward.

2. Kassebaum NJ, Smith AGC, Bernbe E, Fleming TD, Reynolds AE, Vos T, et al. 2017; Global, regional, and national prevalence, incidence, and disability-adjusted life years for oral condidions for 195 countries, 1990-2015: a systematic analysis for the global burden of diseases, Injuries, and risk factors. J Dent Res. 96:380–387. DOI: 10.1177/0022034517693566. PMID: 28792274. PMCID: PMC5912207. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85016124286&origin=inward.

3. Costa SM, Martins CC, Bonfim Mde LC, Zina LG, Paiva SM, Pordeus IA, et al. 2012; A systematic review of socioeconomic indicators and dental caries in adults. Int J Environ Res Public Health. 9:3540–3574. DOI: 10.3390/ijerph9103540. PMID: 23202762. PMCID: PMC3509471. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84868101282&origin=inward.

4. Schwendicke F, Dorfer CE, Schlattmann P, Page LF, Thomson WM, Paris S. 2015; Socioeconomic inequality and caries: a systematic review and meta-analysis. J Dent Res. 94:10–18. DOI: 10.1177/0022034514557546. PMID: 25394849. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84919478267&origin=inward.

5. Boillot A, El Halabi B, Batty GD, Rangé H, Czernichow S, Bouchard P. 2011; Education as a predictor of chronic periodontitis: a systematic review with meta-analysis population-based studies. PLoS ONE. 6:e21508. DOI: 10.1371/journal.pone.0021508. PMID: 21814546. PMCID: PMC3140980. PMID: 0c463a2288174cc69aceafacac58878b. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79960630454&origin=inward.

6. Benzian H, Hobdell M, Holmgren C, Yee R, Monse B, Barnard JT, et al. 2011; Political priority of global oral health: an analysis of reasons for international neglect. Int Dent J. 61:124–130. DOI: 10.1111/j.1875-595X.2011.00028.x. PMID: 21692782. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79952218659&origin=inward.

7. World Health Organization. 2021. Aug. 09. Draft global strategy on oral health. WHO discussion paper. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069526361&origin=inward.

8. Ministry of Health and Welfare. 2018. Dec. 2018 Korea national children's oral health survey. National statistics No.117051. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069526361&origin=inward.

9. Korea Disease Control and Prevention Agency. 2021. April. Guidebook for data users of Korea National Health & Nutrition Examination Survey, 7th wave(2016-2018). National statistics No.117002. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069526361&origin=inward.

10. Korea National Health & Nutrition Examination Survey, Survey Data [Internet]. Available from:https://knhanes.kdca.go.kr/knhanes/main.do. cited 2022 March 29.

11. Petersen MR, Deddens JA. 2008; A comparison of two methods for estimating prevalence ratios. BMC Medical Research Methodology. 8:9. DOI: 10.1186/1471-2288-8-9. PMID: 18307814. PMCID: PMC2292207. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=41949133657&origin=inward.

12. Relevant Ministries of the Korean Government. 2021; Health Plan 2030, 2021-2030. Relevant Ministries of the Korean Government. 62–63. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069526361&origin=inward.

13. Kim IJ, Ju HJ, Lee SH, Na JY, Oh HW, Lee HS. 2016; Pattern of dental caries in Korean adolescents with a high risk of caries. J Korean Acad of Oral Health. 40:126–132. DOI: 10.11149/jkaoh.2016.40.2.126.

14. Kim KY, Kim AH, An SY. 2020; Characteristics and risk factors of high caries group in 12-year-old children using data the 2015 children's oral health survey. J Korean Acad Pediatr Dent. 47:327–336. DOI: 10.5933/JKAPD.2020.47.3.327.

15. Watt RG, Mathur MR, Aida J, Bonecker M, Venturelli R, Gansky SA. 2018; Oral health disparities in children, a canary in the coalmine? Pediatr Clin N Am. 65:965–979. DOI: 10.1016/j.pcl.2018.05.006. PMID: 30213357. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85053082678&origin=inward.

16. Shin BM, Jung SH. 2012; Socio-economic inequalities in dental caries in Korea. J Korean Acad of Oral Health. 36:144–152. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069526361&origin=inward.

17. Shin BM, Jung SH. 2020; Kim MH, Ryu JI. Did the extended coverage policy contribute to alleviating socioeconomic inequality in untreated dental caries of both children and adolescents in South Korea? BMC Oral Health. 20:124. DOI: 10.1186/s12903-020-01112-8. PMID: 32321493. PMCID: PMC7178997. PMID: c4a41607549e4bc4bd6e82f31564515f. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85083949732&origin=inward.

18. Country/Area Profile Project. Explore Oral Health[Internet]. Available from:https://capp.mau.se/explore-oral-health/. cited 2022 May 26.

19. van der Tas JT, Kragt L, Elfrink MEC, Bertens LCM, Jaddoe VWV, Moll HA, et al. 2017; Social inequalities and dental caries in six-year-old children from the Netherlands. J Dent. 62:18–24. DOI: 10.1016/j.jdent.2017.04.008. PMID: 28450065. PMCID: PMC6485603. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85019033043&origin=inward.

20. Peres MA, Ju X, Mittinty M, Spencer AJ, Do LG. 2019; Modifiable factors explain socioeconomic inequalities in children's dental caries. J Dent Res. 98:1211–1218. DOI: 10.1177/0022034519866628. PMID: 31379245. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85070307986&origin=inward.

21. Shen A, Bernabe E, Sabbah W. 2021; Systematic review of intervention studies aiming at reducing inequality in dental caries among children. Int J Environ Res Public Health. 18:1300. DOI: 10.3390/ijerph18031300. PMID: 33535581. PMCID: PMC7908536. PMID: 468d7ac1c89147758abb42a012042bd3. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85100107382&origin=inward.

22. Jung SH, Song YH, Choi JS. 2021; A study for developing the 2nd National Oral Health Plan 2022-2026 in Korea. Ministry of Health and Welfare, Gangneung-Wonju National University Industry Academy Cooperation Group. 29–30. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85069526361&origin=inward.

23. Moynihan P, Makino Y, Petersen PE, Ogawa . 2018; Implications of WHO guideline on sugars for dental health professionals. Community Dent Oral Epidemiol. 46:1–7. DOI: 10.1111/cdoe.12353. PMID: 29168887. PMID: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85035120263&origin=inward.

24. Han DH, Ryu JI, Kim MS, Ghang HY, Jung SH, Kim SJ, et al. 2021; Analyzing the performance of expanding dental health insurance coverage and a mid- to long-term planning for expanding the coverage. 3–5.