Cost-effectiveness analysis of combining traditional Chinese medicine in the treatment of hypertension: compound Apocynum tablets combined with Nifedipine sustained-release tablets vs Nifedipine sustained-release tablets alone

Table 1 Markov simulation parameters for BPV

Items	Base Case	Range	Source
Nocturnal Blood Pressure ΔSD
Nifedipine	1.87	1.683 ~ 2.057	[29]
Compound Apocynum+Nifedipine	2.99	2.691 ~ 3.289	[30]
Nocturnal Blood Pressure ΔCV
Nifedipine	0.00		[29]
Compound Apocynum+Nifedipine	0.01	0.009 ~ 0.011	[29]
Baseline incidence of stroke for 1 year	1.1%	0.01 ~ 0.012	[31]
Incremental stroke incidence for 1 year	0.320%	0.003 ~ 0.004	[30]
Incidence of stroke
Nifedipine	0.460%	0.0041 ~ 0.0051
Compound Apocynum+Nifedipine	0.102%	0.0009 ~ 0.0011
Baseline incidence of MI for 1 year	0.2%	0.0018 ~ 0.0022	[31]
Incremental MI incidence for 1 year	0.811%	0.0073 ~ 0.0089	[30]
Incidence of MI
Nifedipine	0.199%	0.0018 ~ 0.0022
Compound Apocynum+ Nifedipine	0.193%	0.0017 ~ 0.0021

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