Table 2.
Model parameters
| Parameters | Values | Unit | Source | |
|---|---|---|---|---|
| Dental caries sub-model (SM1) | Age 15–34 | Age 35+ | ||
| Regular visit fraction | Dimensionless/ year | [44] | ||
| very low DMFT [female] | 0.229 | 0.148 | ||
| very low DMFT [male] | 0.191 | 0.170 | ||
| low DMFT [female] | 0.306 | 0.357 | ||
| low DMFT [male] | 0.308 | 0.385 | ||
| moderate DMFT [female] | 0.521 | 0.643 | ||
| moderate DMFT [male] | 0.462 | 0.333 | ||
| high DMFT [female] | 0.571 | 0.332 | ||
| high DMFT [male] | 0.583 | 0.215 | ||
| Treated to untreated transition | Dimensionless/ year | Expert estimation | ||
| very low DMFT | 0.4 | 0.7 | ||
| low DMFT | 0.78 | 0.58 | ||
| moderate DMFT | 0.78 | 0.34 | ||
| high DMFT | 0.7 | 0.75 | ||
| aVery Low To Low transition rate | 0.063 (0.0504–0.0756) | Dimensionless/year | Model calibration | |
| aLow To Moderate transition rate | 0.066 (0.0528–0.0792) | |||
| aModerate To High transition rate | 0.063 (0.0504–0.0756) | |||
| Dental health utilization sub-model (SM2) | ||||
| Time to adjust uptake | 1 | Year | Expert estimation | |
| Initial uptake rate | VL 0.384, L 0.066, M 0.041, H 0.075 | Dimensionless | [44] | |
| Oral health behaviour sub-model (SM3) | ||||
| Reference average price of SSB | Report on product price, 2000–2018 | Thai Baht | [45] | |
| aDemand price elasticity |
Low income −1.46 (− 1.168-1.752) High income − 0.39 (− 0.312–0.468) |
Dimensionless | [46] | |
| Average sugar content per SSB | 0.15 (0.5–0.9) | Kg/litre | [47] | |
| Other sugar consumption by SES [low income, high income] | Report from 2000 to 2015 and extrapolation after 2015 from 4y % change moving average | [7] | ||
| Initial self-care adherence | 0.529 | Dimensionless | [44] | |
| aElasticity of sugar consumption | 0.6 (0.4–0.72) | Dimensionless | Expert estimation | |
| aPercent reduce SSB sugar | 0.8 (0.5–0.9) | Dimensionless | Expert estimation | |
aParameters used for sensitivity analysis