Cost-effectiveness of Intensive vs Standard Blood Pressure Control Among Older Patients With Hypertension

Intensive blood pressure-lowering treatment to prevent cardiovascular events in patients with diabetes: a systematic review and meta-analysis

The effect of intensive blood pressure (BP) reduction on the prevention of cardiovascular events in patients with diabetes remains unclear. This study evaluated the impact of intensive BP-lowering on cardiovascular events in patients with diabetes compared to standard treatment. A systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted, comparing intensive treatment (target systolic BP < 130 mmHg or diastolic BP < 80 mmHg) with standard treatment in patients with diabetes. Eligible studies were identified through Ovid MEDLINE, Cochrane Library, and Ichushi. Outcomes included cardiovascular events, coronary artery disease, stroke, all-cause and cardiovascular death, and serious adverse events. Data were analyzed using a random-effects model. Sensitivity analyses were performed to assess the effects of systolic and diastolic BP targets separately. The search identified eight eligible trials comprising 16634 patients with diabetes. Intensive BP-lowering treatment significantly reduced cardiovascular events (risk ratio: 0.848; 95% confidence interval: 0.760, 0.947) and stroke (risk ratio: 0.705; 95% confidence interval: 0.541, 0.918), but not coronary artery disease or all-cause death in analyses including J-DOIT3 trial. Sensitivity analyses showed that DBP-targeted treatment was not associated with the risk of cardiovascular events. Incorporating the latest RCT strengthened the association between intensive treatment and reduced coronary artery disease risk, without significantly increasing the risk of serious adverse events. These findings recommend an intensive BP-lowering strategy targeting SBP < 130 mmHg or DBP < 80 mmHg to prevent cardiovascular events, particularly stroke, in patients with diabetes.

Definition, prevalence, and economic impacts of hypertension on the elderly population

Arterial hypertension is the most important modifiable risk factor for cardiovascular disease and a leading cause of death. The incidence of hypertension increases with age, with a lifetime risk of more than 90% for elderly individuals. With the growth in the absolute numbers and proportion of the elderly population worldwide, the economic impact and burden on healthcare systems due to elderly hypertension continue to rise. However, inconsistencies in the definition of elderly hypertension in different guidelines and the controversial results of various clinical trials underscore the importance of determining the consensus of management for elderly hypertension. Therefore, to clarify the current situation, this article discusses the definition, prevalence, and economic impacts of elderly hypertension.

Cost-effectiveness analysis of a nonphysician-led, community-based blood pressure intervention in rural China based on CRHCP research

BACKGROUND

The China Rural Hypertension Control Project (CRHCP) is a nonphysician-led community-based hypertension intervention program that has demonstrated clear benefits in improving blood pressure (BP) control and reducing the incidence of cardiovascular disease events among hypertensive patients in rural areas of China. However, it is currently unclear whether the benefits of the CRHCP outweigh its costs, and whether promoting this project in China is justifiable from a perspective of healthcare system.

METHODS

We employed a Markov model to forecast the anticipated 20-year costs and effectiveness of the CRHCP trial. Cost data for this study was gathered from public records or published papers, whereas clinical data was extracted from the CRHCP trial. Our primary outcome measure was the incremental cost-effectiveness ratio, expressed in Chinese Yuan (CNY) per quality-adjusted life-year (QALY), representing the additional cost per additional QALY gained.

RESULTS

Over a span of 20 years, the cost for a rural hypertensive individual in China who received intensive BP intervention by a nonphysician community healthcare provider would amount to 25,129 CNY, yielding an effectiveness of 8.19 QALY. In contrast, if usual care was provided, the cost would be 26,709 CNY with an effectiveness of 7.94 QALY. The CRHCP program demonstrated lower costs and greater effectiveness for rural hypertensive individuals in China.

CONCLUSION

Our study indicates that the implementation of the CRHCP program among rural hypertensive individuals in China resulted in increased effectiveness and reduced costs. From the perspective of Chinese healthcare system, the CRHCP program proves to be cost-saving within the current healthcare landscape.

Epidemiology of Hypertension in Older Adults

The exact definition of hypertension in older adults has changed over the decades, but the benefits of strict blood pressure control across the life span are being increasingly recognized by professional societies and guideline committees. This article discusses the prevalence of hypertension in older adults and describes the associations between hypertension and both clinical and nonclinical morbidity in that population.

Cost-effectiveness of strengthening blood pressure classification in South Korea: comparing the 2017 ACC/AHA and KSH guidelines

BACKGROUND

Hypertension is a significant risk factor for cardiovascular disease (CVD), with hypertension-related deaths increasing annually. While South Korea uses the Korean Society of Hypertension (KSH) guideline of 140/90 mmHg, the American College of Cardiology (ACC) and American Heart Association (AHA) updated their guidelines in 2017 to 130/80 mmHg. This study evaluates the cost-effectiveness of transitioning to the 2017 ACC/AHA guidelines by estimating early treatment impacts and potential CVD risk reduction.

METHODS

A Markov state-transition simulation model with a 10-year horizon was used to estimate cost-effectiveness, focusing on strengthening target blood pressure. Quality-adjusted life years (QALYs) served as the measure of effectiveness. Cohorts of 10,000 individuals representing South Koreans in their 20s through 80s were compared in scenario analyses from the healthcare system perspective. A 4.5% annual discount rate was applied to costs and effectiveness. Primary outcomes were incremental cost-effectiveness ratio (ICER) and net monetary benefit (NMB). The willingness-to-pay (WTP) threshold was < KRW 30,000,000/QALY gained. Probabilistic sensitivity analyses (PSAs) addressed model input parameter uncertainties.

RESULTS

The base-case analysis showed an ICER value of KRW 1,328,395/QALY gained across all populations. ICER values increased with age, from - KRW 3,138,071/QALY for 20-year-olds to KRW 16,613,013/QALY for individuals over 80. The 60s age group showed the greatest benefit with an incremental QALY gain of 0.46. All scenarios had ICERs below the WTP threshold, with a PSA probability of 98.0% that strengthening blood pressure classification could be cost-effective.

CONCLUSIONS

This economic evaluation found that adopting the 2017 ACC/AHA guidelines may result in early treatment, reduce the potential incidence of CVD events, and be cost-effective across all age groups. The study findings have implications for policymakers deciding whether and when to revise official guidelines regarding target blood pressure levels, considering the impacts on public health and budgetary concerns.

Treating Mild Chronic Hypertension During Pregnancy: A Cost-Effectiveness Analysis

OBJECTIVE

To assess the cost effectiveness of targeting a blood pressure of less than 140/90 mm Hg compared with 160/105 mm Hg.

METHODS

A decision-analytic model was constructed to compare the treatment of chronic hypertension in pregnancy at mild-range blood pressures (140/90 mm Hg) with the treatment of chronic hypertension before 20 weeks of gestation at severe-range blood pressures (160/105 mm Hg) in a theoretical cohort of 180,000 patients with mild chronic hypertension. Probabilities, costs, and utilities were derived from literature and varied in sensitivity analyses. Primary outcomes included incremental cost per quality-adjusted life-year (QALY), cases of preeclampsia, preeclampsia with severe features, severe maternal morbidity (SMM), preterm birth, maternal death, neonatal death, and neurodevelopmental delay. The cost-effectiveness threshold was $100,000 per QALY.

RESULTS

Treating chronic hypertension in a population of 180,000 pregnant persons at mild-range blood pressures, compared with severe-range blood pressures, resulted in 14,177 fewer cases of preeclampsia (43,953 vs 58,130), 11,835 of which were cases of preeclampsia with severe features (40,530 vs 52,365). This led to 817 fewer cases of SMM (4,375 vs 5,192), and 18 fewer cases of maternal death (102 vs 120). Treating at a lower threshold also resulted in 8,078 fewer cases of preterm birth (22,000 vs 30,078), which led to 26 fewer neonatal deaths (276 vs 302) and 157 fewer cases of neurodevelopmental delay (661 vs 818). Overall, treating chronic hypertension at a lower threshold was a dominant strategy that resulted in decreased costs of $600 million and increased effectiveness of 12,852 QALYs.

CONCLUSION

Treating chronic hypertension at a threshold of mild-range blood pressures is a dominant (lower costs, better outcomes) and cost-effective strategy that results in fewer neonatal and maternal deaths compared with the standard treatment of treating at severe range blood pressures.