TY - JOUR
T1 - Cascade screening based on genetic testing is cost-effective: Evidence for the implementation of models of care for familial hypercholesterolemia
AU - Ademi, Z.
AU - Watts, Gerald
AU - Pang, Jing
AU - Sijbrands, E.J.G.
AU - Van Bockxmeer, Frank
AU - O'Leary, Peter
AU - Geelhoed, Elizabeth
AU - Liew, D.
PY - 2014
Y1 - 2014
N2 - BACKGROUND: Familial hypercholesterolemia (FH) imposes significant burden of premature coronary heart disease (CHD). OBJECTIVE: This study aimed to determine the cost-effectiveness of FH detection based on genetic testing, supplemented with the measurement of plasma low-density lipoprotein cholesterol concentration, and treatment with statins. METHODS: A Markov model with a 10-year time horizon was constructed to simulate the onset of first-ever CHD and death in close relatives of probands with genetically confirmed FH. The model comprised of 3 health states: "alive without CHD," "alive with CHD," and "dead." Decisionanalysis compared the clinical consequences and costs of cascade-screening vs no-screening from an Australian health care perspective. The annual risk of CHD and benefits of treatment was estimated from a cohort study. The underlying prevalence of FH, sensitivity, specificity, cost of screening, treatment, and clinic follow-up visits were derived from a cascade screening service for FH in Western Australia. An annual discount rate of 5% was applied to costs and benefits. RESULTS: The model estimated that screening for FH would reduce the 10-year incidence of CHD from 50.0% to 25.0% among people with FH. Of every 100 people screened, there was an overall gain of 24.95 life-years and 29.07 quality-adjusted life years (discounted). The incremental costeffectiveness ratio was in Australian dollars, $4155 per years of life saved and $3565 per qualityadjusted life years gained. CONCLUSION: This analysis within an Australian context, demonstrates that cascade screening for FH, using genetic testing supplemented with the measurement of plasma low-density lipoprotein cholesterol concentrations and treatment with statins, is a cost-effective means of preventing CHD in families at risk of FH. © 2014 National Lipid Association. All rights reserved.
AB - BACKGROUND: Familial hypercholesterolemia (FH) imposes significant burden of premature coronary heart disease (CHD). OBJECTIVE: This study aimed to determine the cost-effectiveness of FH detection based on genetic testing, supplemented with the measurement of plasma low-density lipoprotein cholesterol concentration, and treatment with statins. METHODS: A Markov model with a 10-year time horizon was constructed to simulate the onset of first-ever CHD and death in close relatives of probands with genetically confirmed FH. The model comprised of 3 health states: "alive without CHD," "alive with CHD," and "dead." Decisionanalysis compared the clinical consequences and costs of cascade-screening vs no-screening from an Australian health care perspective. The annual risk of CHD and benefits of treatment was estimated from a cohort study. The underlying prevalence of FH, sensitivity, specificity, cost of screening, treatment, and clinic follow-up visits were derived from a cascade screening service for FH in Western Australia. An annual discount rate of 5% was applied to costs and benefits. RESULTS: The model estimated that screening for FH would reduce the 10-year incidence of CHD from 50.0% to 25.0% among people with FH. Of every 100 people screened, there was an overall gain of 24.95 life-years and 29.07 quality-adjusted life years (discounted). The incremental costeffectiveness ratio was in Australian dollars, $4155 per years of life saved and $3565 per qualityadjusted life years gained. CONCLUSION: This analysis within an Australian context, demonstrates that cascade screening for FH, using genetic testing supplemented with the measurement of plasma low-density lipoprotein cholesterol concentrations and treatment with statins, is a cost-effective means of preventing CHD in families at risk of FH. © 2014 National Lipid Association. All rights reserved.
U2 - 10.1016/j.jacl.2014.05.008
DO - 10.1016/j.jacl.2014.05.008
M3 - Article
C2 - 25110220
SN - 1933-2874
VL - 8
SP - 390
EP - 400
JO - Journal of Clinical Lipidology
JF - Journal of Clinical Lipidology
IS - 4
ER -