Table 1 Descriptive statistics of the standardized claim ratio of deciduous tooth treatment and the number of decayed, missing, and filled permanent teeth for 12-year-olds in Japan (47 prefectures) from 2016 and 2018
WAVE 1 (2016) | WAVE 2 (2018) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SCR of deciduous tooth extraction | DMFT | SCR of deciduous tooth extraction | DMFT | |||||||||
Continuous variable | Mean | SD | Min | Max | Correlation | Correlation | Mean | SD | Min | Max | Correlation | Correlation |
SCR of deciduous tooth extraction | 98.8 | 12.9 | 72.7 | 123.8 | 97.9 | 12.1 | 74.7 | 120.2 | ||||
DMFT for 12-year-olds (number) | 0.9 | 0.3 | 0.4 | 1.9 | 0.8 | 0.3 | 0.3 | 1.8 | ||||
The rate of S-FMR utilization (per person) | 17.3 | 21.1 | 0.1 | 86.9 | -0.10 | -0.29* | 19.4 | 22.6 | 0.0 | 84.7 | -0.08 | -0.06 |
SCR of dental sealants | 88.8 | 36.6 | 17.4 | 210.0 | 0.37* | -0.34* | 88.0 | 38.7 | 27.1 | 230.4 | 0.42* | -0.28 |
Per capita prefectural income (1,000 JPY) | 2894.7 | 472.4 | 2313.1 | 5400.3 | 0.29 | -0.32* | 3003.8 | 467.9 | 2391 | 5414.8 | 0.37* | -0.30 |
The rate of Industrial Structure 3 (Service / Commerce) (%) † | 65.1 | 4.0 | 58.6 | 72.7 | -0.27 | 0.23 | 68.7 | 5.0 | 61.5 | 82.1 | -0.21 | 0.24 |
Number of families (per household) † | 2.5 | 0.2 | 2.0 | 2.9 | 0.12 | -0.05 | 2.4 | 0.2 | 2.0 | 2.8 | 0.03 | -0.16 |
Percentage of the nuclear family (%) † | 56.3 | 3.4 | 48.2 | 64.0 | -0.21 | 0.02 | 56.1 | 3.1 | 47.8 | 63.9 | -0.14 | -0.02 |
Percentage of households living with older adults (%) † | 41.5 | 5.5 | 28.8 | 53.1 | 0.18 | -0.10 | 44.8 | 5.3 | 30.9 | 55.8 | 0.06 | -0.13 |
Total fertility rate (%) † | 1.5 | 0.1 | 1.1 | 1.9 | -0.27 | 0.32* | 1.5 | 0.1 | 1.2 | 2.0 | -0.27 | 0.40* |
Percentage of college graduates (%) † | 16.5 | 5.3 | 9.4 | 34.7 | -0.07 | -0.31* | 16.5 | 5.3 | 9.4 | 34.7 | 0.06 | -0.35* |
The unemployment rate (%) † | 4.8 | 0.8 | 3.2 | 7.6 | -0.05 | 0.44* | 2.1 | 0.5 | 1.3 | 3.4 | -0.09 | 0.31: |
The number of dentists working in private dental office (per 100,000 people) † | 69.6 | 13.1 | 50.6 | 118.7 | 0.15 | -0.15 | 73.6 | 13.1 | 54.9 | 115.9 | 0.33* | -0.18: |
Percentage of receiving public assistance (%) † | 0.7 | 0.4 | 0.1 | 2.0 | -0.10 | 0.58* | 1.4 | 0.7 | 0.3 | 3.2 | -0.18 | 0.39* |
Categorical variable | Number of prefectures (Total N = 47) | F value | F value | Number of prefectures Total N = 47) | F value | F value | ||||||
Medical-dental expense subsidy policies | 5.59* | 0.58 | 5.57* | 0.63 | ||||||||
Co-payment until children enter elementary school | 25 | 23 | ||||||||||
No co-payment until children enter elementary school | 7 | 7 | ||||||||||
Co-payment continuing beyond elementary school | 15 | 17 | ||||||||||