pISSN 1225-388X
eISSN 2093-7784
Number of missing teeth among elderly before and after National Health Insurance coverage of dental implants
| Period (yr) | Sample N | Number of missing teeth | |||||||
|---|---|---|---|---|---|---|---|---|---|
| MC |
95% CI | MA |
95% CI | MT |
95% CI | ||||
| Before coverage | |||||||||
| 2011 | 1,521 | 6.3 | 5.8-6.7 | 6.0 | 5.5-6.5 | 12.2 | 11.7-12.8 | ||
| 2012 | 1,347 | 5.3 | 5.0-5.7 | 4.3 | 3.9-4.7 | 9.6 | 9.1-10.1 | ||
| 2013 | 1,092 | 4.9 | 4.5-5.2 | 4.3 | 3.9-4.7 | 9.2 | 8.7-9.7 | ||
| Intermediate | |||||||||
| 2014 | 1,215 | 5.1 | 4.7-5.4 | 3.9 | 3.5-4.3 | 9.0 | 8.5-9.4 | ||
| 2015 | 1,187 | 5.5 | 5.1-5.9 | 3.0 | 2.6-3.3 | 8.5 | 8.0-9.0 | ||
| After coverage | |||||||||
| 2016-2018 | 2,981 | 4.6 | 4.3-4.8 | 3.8 | 3.6-4.0 | 8.4 | 8.0-8.7 | ||
| 2019 | 1,544 | 6.8 | 6.5-7.2 | 3.4 | 3.1-3.6 | 10.2 | 9.7-10.7 | ||
*MC: Missing, as a result of caries.
**MA: Missing, as a result of any other reason than caries.
†MT: Total number of missing teeth.
Weighted analysis of Korean National Health and Nutrition Examination Survey (KNHANES) data.