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Table 4 List of parameter base case values and ranges used in the sensitivity analyses in the cost-effectiveness model

From: The cost-effectiveness of government actions to reduce sodium intake through salt substitutes in Vietnam

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%
  1. Abbreviations: IHD ischaemic heart disease, QALYs quality adjusted life years, SBP systolic blood pressure