Table 4.
List of parameter base case values and ranges used in the sensitivity analyses in the cost-effectiveness model
| Parameter | Lower | Base case | Upper |
|---|---|---|---|
| % Products sodium reduced | −10% | 10% | |
| Discount rate costs | 0% | 3% | 5% |
| Discount rate QALYs | 0% | 3% | 5% |
| Incidence of stroke | −10% | 10% | |
| Stroke RR per 1% SBP Δ | 4.0% | 6.3% | 8.0% |
| Incidence of IHD | −10% | 10% | |
| IHD RR per 1% SBP Δ | 1.0% | 3.4% | 5.0% |
| Event cost Govt: Stroke | 0 ₫ | 12,765,544 ₫ | 23,596,200 ₫ |
| Event cost Govt: IHD | 0 ₫ | 17,297,680 ₫ | 31,973,530 ₫ |
| Long term Govt cost: Stroke | 0 ₫ | 0 ₫ | 25,796,954 ₫ |
| Long term Govt cost: IHD | 0 ₫ | 368,835 ₫ | 681,766 ₫ |
| Salt substitution cost/kg | US$ 0.02 | US$ 0.04 | US$ 0.08 |
| Cost of healthcare to Govt | 0% | 54% | 100% |
| Cost of project implementation | −20% | 20% | |
| Disutility stroke event | −0.25 | −0.31 | −0.40 |
| Disutility IHD event | −0.10 | − 0.19 | − 0.28 |
| Utility long term stroke | −10% | 10% | |
| Utility long term IHD | −10% | 10% | |
| Mortality of stroke | −10% | 0.37 | 10% |
| Mortality of IHD | −10% | 10% |
Abbreviations: IHD ischaemic heart disease, QALYs quality adjusted life years, SBP systolic blood pressure