| Literature DB >> 30884975 |
Rod S Taylor1, Susannah Sadler1, Hasnain M Dalal2, Fiona C Warren1, Kate Jolly3, Russell C Davis4, Patrick Doherty5, Jackie Miles6, Colin Greaves7, Jennifer Wingham1, Melvyn Hillsdon8, Charles Abraham7, Julia Frost1, Sally Singh9, Christopher Hayward10, Victoria Eyre11, Kevin Paul12, Chim C Lang13, Karen Smith14.
Abstract
BACKGROUND: The REACH-HF (Rehabilitation EnAblement in CHronic Heart Failure) trial found that the REACH-HF home-based cardiac rehabilitation intervention resulted in a clinically meaningful improvement in disease-specific health-related quality of life in patients with reduced ejection fraction heart failure (HFrEF). The aims of this study were to assess the long-term cost-effectiveness of the addition of REACH-HF intervention or home-based cardiac rehabilitation to usual care compared with usual care alone in patients with HFrEF. DESIGN AND METHODS: A Markov model was developed using a patient lifetime horizon and integrating evidence from the REACH-HF trial, a systematic review/meta-analysis of randomised trials, estimates of mortality and hospital admission and UK costs at 2015/2016 prices. Taking a UK National Health and Personal Social Services perspective we report the incremental cost per quality-adjusted life-year (QALY) gained, assessing uncertainty using probabilistic and deterministic sensitivity analyses.Entities:
Keywords: Cardiac rehabilitation; cost-effectiveness; decision model; health-related quality of life; heart failure; home-based
Mesh:
Year: 2019 PMID: 30884975 PMCID: PMC6628466 DOI: 10.1177/2047487319833507
Source DB: PubMed Journal: Eur J Prev Cardiol ISSN: 2047-4873 Impact factor: 7.804
Model parameters and assumptions.
| Parameter | Base-case value Mean | Probabilistic distribution | Standard error | Source |
|---|---|---|---|---|
| Mortality | ||||
| Monthly probability of death[ | 0.650% | Beta | Taylor et al.[ | |
| RR of death in hospital compared with 30 days of discharge | 1.5 | Fixed | Donkor et al.[ | |
| HR of mortality rate by months since discharge | ||||
| ≤1 | 6.18 | Lognormal | 1.1364 | Solomon et al.[ |
| >1 | 4.39 | Lognormal | 1.1225 | |
| >3 | 3.54 | Lognormal | 1.1150 | |
| >6 | 3.11 | Lognormal | 1.0978 | |
| >12 | 2.46 | Lognormal | 1.0948 | |
| >24 | 1.93 | Lognormal | 1.1450 | |
| Hospital admission | ||||
| Monthly probability of HF admission | 2.04% | Beta | Cowie et al.[ | |
| Monthly probability of other cause admission | 1.97% | Beta | Cowie et al.[ | |
| Average length of stay (days) | 8 | Fixed | Donkor et al.[ | |
| Intervention effect | ||||
| OR for HF admission: REACH-HF | 0.56 | Lognormal | 2.03 | Dalal et al.[ |
| OR for HF admission: home-based CR | 0.70 | Lognormal | 1.60 | Meta-analysis (see Supplementary Material online) |
| Duration of treatment effect | Four years | Fixed | Assumption | |
| Costs per patient | ||||
| Admission HF | £3873 | Gamma | Department of Health[ | |
| Admission other causes | £2248 | Gamma | Zannad et al.,[ | |
| Admission all cause | £2901[ | Gamma | Zannad et al.,[ | |
| Ongoing monthly healthcare | £96[ | Fixed | Solomon et al.,[ | |
| REACH-HF | £418 | Fixed | Dalal et al.[ | |
| Home-based CR | £477 | Fixed | Strategic Commissioning Development Unit[ | |
| Utilities | ||||
| Utility for HF patients at baseline | 0.736 | Fixed | Kansal et al.[ | |
| HF hospital admission decrement | –0.084 | Beta | 0.006 | Kansal et al.[ |
| Other cause hospital admission decrement | –0.032 | Beta | 0.005 | Kansal et al.[ |
| Assumptions | ||||
| Usual care was a no CR (either home- or centre-based) approach that included medical management according to national and local guidelines, including specialist HF nurse care. Patients can be admitted for HF during any one-month cycle and probability of admission was fixed for all patients at all times regardless of previous admissions. | ||||
| First and subsequent HF hospitalisations give the same RR of death compared with no hospitalisation. | ||||
| Other causes hospitalisations do not independently increase risk of death. | ||||
| Rate of other causes hospitalisations do not change as a result of treatment allocation. | ||||
| The cost and quality of life impact of being in any of the post-HF hospitalisation states (from one to 38 + months after discharge) were assumed to be the same. | ||||
At baseline, that is, never hospitalised or >38 months since last hospitalisation.
We estimate a per month cost for non-HF hospital admission based on a weighted average cost across four common types of non-HF admission (other cardiovascular disease, renal function, hyperkalaemia and other), using data on proportions of each admission type reported in the Eplerenone in Mild Patients Hospitalization and Survival Study in Heart Failure trial,[22] combined with unit costs taken from the English National Schedule of Reference Costs 2015/2016.
Based on data for resource use by type, for people with HF: comprises £721 p.a. for drug costs, £33 p.a. for Accident and Emergency attendances,[44] £101 p.a. for outpatient appointments and £302 p.a. for General Practitioner appointments monthly.[45] RR: relative risk; HR: hazard ratio; REACH-HF: Rehabilitation Enablement in Chronic Heart Failure; HF: heart failure; OR: odds ratio; CR: cardiac rehabilitation.
Results of cost-effectiveness analyses: REACH-HF intervention and home-based CR versus usual care.
| Discounted costs £, mean (95% CI) | Discounted QALYs, mean (95% CI) | ICER (£ per QALY gained) | % simulations with iNMB > £0 | |
|---|---|---|---|---|
| Usual care alone | £15,051 (£13,844 to £16,289) | 4.24 (4.05 to 4.43) | ||
| REACH-HF intervention plus usual care | £15,452 (£14,240 to £16,780) | 4.47 (3.83 to 4.91) | £1721 | 78% |
| Home-based CR plus usual care | £15,444 (£14,278 to £16,781) | 4.40 (3.89 to 4.77) | £2413 | 73% |
CR: cardiac rehabilitation; CI: confidence interval; QALY: quality-adjusted life-year; ICER: incremental cost-effectiveness ratio; iNMB: incremental net monetary benefit; REACH-HF: Rehabilitation Enablement in Chronic Heart Failure