Table 2. Comparison of the number of outpatients and total dental costs by age group in the pre- and post-policy intervention periods.
| Age group (yr) | Mean (standard deviation) | ||||
|---|---|---|---|---|---|
| Gingivitis outpatients | Periodontitis outpatients | ||||
| Pre-policy | Post-policy | Pre-policy | Post-policy | ||
| 35–44 | |||||
| No. of outpatients | 1,001,279 | 1,693,641 | 4,541,805 | 5,197,268 | |
| Total dental cost (Won) | 24,416 (23,746) | 38,131 (16,944) | 41,422 (35,339) | 47,208 (32,731) | |
| 45–54 | |||||
| No. of outpatients | 1,220,705 | 1,757,387 | 7,175,037 | 7,856,225 | |
| Total dental cost (Won) | 25,163 (24,531) | 36,607 (19,624) | 40,374 (34,832) | 46,295 (34,801) | |
| 55–64 | |||||
| No. of outpatients | 988,395 | 1,385,278 | 5,858,988 | 6,973,328 | |
| Total dental cost (Won) | 23,631 (22,689) | 33,695 (20,482) | 37,128 (32,013) | 42,823 (33,273) | |
The pre-policy period was between July 2010 and June 2013, and the post-policy period was July 2013 to November 2015.