Relationship between outpatient visit frequency and hypertension control: a 9-year occupational cohort study

Home blood pressure measurement and hypertension control according to the length of antihypertensive treatment among employees

This study aimed to investigate the association between the frequency of home blood pressure (HBP) measurement and hypertension control in a middle-aged working population. This study included 627 employees aged 40 years or older who underwent health check-ups for 2 consecutive years from 2019 to 2022 and had blood pressure (BP) ≥ 140/90 mmHg at the health check-up in the first year. The participants were stratified by the length of antihypertensive treatment (within 1 year, >1 year) using data in the first and second years, and were classified by the frequency of HBP measurement (<6 times/week, almost every day) using data in the second year. In each treatment length, logistic regression analyses were used to estimate multivariable adjusted odds ratios (ORs) of controlled hypertension (BP at health check-ups <140/90 mmHg in the second year) in those who measured HBP almost every day compared with those who measured HBP < 6 times/week. The ORs (95% confidence intervals) were 1.56 (0.94-2.73) in those within 1 year of starting treatment and 0.74 (0.44-1.22) in those with more than 1 year of starting treatment. In participants with BP ≥ 160/100 mmHg in the first year, the corresponding ORs were 1.94 (1.04-3.64) and 0.41 (0.13-1.23), respectively. In conclusion, in individuals within 1 year of starting treatment, those who measure HBP almost every day tend to have good control of hypertension. In particular, in those who have BP ≥ 160/100 mmHg before starting antihypertensive medication, measuring HBP almost every day is associated with good control of hypertension. Among those within 1 year of starting the treatment (Group1) especially in those with blood pressure ≥160/100 mmHg, the frequency of home blood pressure measurement was associated with hypertension control. It was not associated among those with more than 1 year of starting the treatment (Group 2).

Hypertension Prevalence and Control Among People With and Without HIV - United States, 2022

BACKGROUND

People with HIV (human immunodeficiency virus; PWH) have higher rates of cardiovascular disease than people without HIV. However, limited information exists about hypertension prevalence and associated risk factors in PWH.

METHODS

This cross-sectional study included adult patients in the 2022 IQVIATM Ambulatory Electronic Medical Record-US data. HIV was identified based on ≥2 HIV diagnosis codes or a positive HIV test. Hypertension was identified by diagnosis codes, ≥2 blood pressure (BP) readings ≥130/80 mm Hg, or an antihypertensive medication prescription. Among those with hypertension, control was defined as the most recent BP < 130/80 mm Hg. Logistic models using the marginal standardization method were used to estimate adjusted prevalence ratios (aPR) of hypertension and hypertension control among all patients and PWH specifically, controlling for covariates.

RESULTS

Of 7,533,379 patients, 19,102 (0.3%) had HIV. PWH had higher hypertension prevalence (66% vs. 54%, aPR:1.14, 95% CI: 1.13-1.15) compared with people without HIV. Among persons with hypertension, PWH were more likely to have controlled hypertension (aPR: 1.10, 95% CI: 1.07-1.13) compared with people without HIV. Among PWH, those from the South were more likely to have hypertension (aPR: 1.07, 95% CI: 1.02-1.12) than PWH from the Northeast, while Black PWH were less likely to have controlled hypertension (aPR: 0.72, 95% CI: 0.67-0.77) than White PWH.

CONCLUSIONS

PWH were more likely to have hypertension than people without HIV. Geographic and racial disparities in hypertension prevalence and control were observed among PWH. Optimal care for PWH includes comprehensive strategies to screen for, prevent, and manage hypertension.

Blood Pressure Control in a Diverse Population of Hypertensive Patients With Heart Failure

Hypertensive patients with heart failure (HF), with reduced or preserved ejection fraction, belong to a vulnerable subset with high mortality risks. In HF patients, the current clinical guideline recommends attaining a systolic blood pressure (BP) <130 mm Hg. However, levels of BP control and their correlates in this subgroup are not well understood. Our study aimed at establishing levels of BP control and its associated factors in a geographically, racially diverse population of hypertensive patients with HF. Our study involved 10,802 patients within a large health system in the Charlotte metropolitan area in 2019. We documented a high prevalence of systolic BP ≥130 mm Hg, 48.1% (95% confidence interval 47.4% to 48.8%), and of BP ≥130/80 mm Hg, 57.6% (57.0% to 58.3%). From a multivariate logistic regression model, systolic BP ≥130 mm Hg was associated with race-ethnicity (p <0.0001), gender (p = 0.0001), insurance (p <0.0001), attribution with a primary care physician (p = 0.0001). Non-Hispanic Blacks (vs non-Hispanic Whites odds ratio [OR] 1.38, 1.28 to 1.48), women (OR 1.12, 1.06 to 1.19), and uninsured patients (vs privately insured OR 1.43, 1.20 to 1.72) had a higher risk of systolic BP ≥130 mm Hg; patients with primary care physician attribution had a lower risk of systolic BP ≥130 mm Hg (OR 0.87, 0.81 to 0.94). Similar results were found with the outcome BP ≥130/80 mm Hg. Overall, further efforts are needed to optimize treatment in hypertensive patients with HF and improve health equity across patient communities.

Association between office visit intervals and long-term cardiovascular risk in hypertensive patients

Hypertension is a chronic disease that requires long-term follow-up in many patients, however, optimal visit intervals are not well-established. This study aimed to evaluate the incidences of major cardiovascular events (MACEs) according to visit intervals. We analyzed data from 9894 hypertensive patients in the Korean Hypertension Cohort, which enrolled and followed up 11,043 patients for over 10 years. Participants were classified into five groups based on their median visit intervals (MVIs) during the 4-year period and MACEs were compared among the groups. The patients were divided into clinically relevant MVIs of one (1013; 10%), two (1299; 13%), three (2732; 28%), four (2355; 24%), and six months (2515; 25%). The median follow-up period was 5 years (range: 1745 ± 293 days). The longer visit interval groups did not have an increased cumulative incidence of MACE (12.9%, 11.8%, 6.7%, 5.9%, and 4%, respectively). In the Cox proportional hazards model, those in the longer MVI group had a smaller hazard ratio (HR) for MACEs or all-cause death: 1.77 (95% confidence interval [CI], 1.45-2.17), 1.7 (95% CI: 1.41-2.05), 0.90 (95% CI: 0.74-1.09) and 0.64 (95% CI: 0.52-0.79), respectively (Reference MVI group of 75-104 days). In conclusion, a follow-up visits with a longer interval of 3-6 months was not associated with an increased risk of MACE or all-cause death in hypertensive patients. Therefore, once medication adjustment is stabilized, a longer interval of 3-6 months is reasonable, reducing medical expenses without increasing the risk of cardiovascular outcomes.

Implantable device actuated by manual button clicks for noninvasive self-drug administration

Self-injectable therapy has several advantages in the treatment of metabolic disorders. However, frequent injections with needles impair patient compliance and medication adherence. Therefore, we develop a fully implantable device capable of on-demand administration of self-injection drugs via noninvasive manual button clicks on the outer skin. The device is designed to infuse the drug only at the moment of click actuation, which allows for an accurate and reproducible drug infusion, and also prevents unwanted drug leakage. Using a mechanical means of drug infusion, this implantable device does not contain any electronic compartments or batteries, making it compact, and semi-permanent. When tested in animals, the device can achieve subcutaneous injection-like pharmacokinetic and pharmacodynamic effects for self-injection drugs such as exenatide, insulin, and glucagon.

Effects of decreasing the out-of-pocket expenses for outpatient care on health-seeking behaviors, health outcomes and medical expenses of people with diabetes: evidence from China

BACKGROUND

To improve access to outpatient services and provide financial support in outpatient expenses for the insured, China has been establishing its scheme of decreasing the out-of-pocket expenses for outpatient care in recent years. There are 156 million diabetes patients in China which almost accounts for a quarter of diabetes population worldwide. Outpatient services plays an important role in diabetes treatment. The study aims to clarify the effects of decreasing the out-of-pocket expenses for outpatient care on health-seeking behaviors, health outcomes and medical expenses of people with diabetes.

METHODS

This study constructed a two-way fixed effect model, utilized 5,996 diabetes patients' medical visits records from 2019 to 2021, to ascertain the influence of decreasing the out-of-pocket expenses for outpatient care on diabetes patients. The dependent variables were diabetes patients' health-seeking behaviors, health outcomes, medical expenses and expenditure of the basic medical insurance funds for them; the core explanatory variable was the out-of-pocket expenses for outpatient care expressed by the annual outpatient reimbursement ratio.

RESULTS

With each increase of 1% in the annual outpatient reimbursement ratio: (1) for health-seeking behaviors, a diabetes patient's annual number of outpatient visits and annual number of medical visits increased by 0.021 and 0.014, while the annual number of hospitalizations decreased by 0.006; (2) for health outcomes, a diabetes patient's annual length of hospital stays and average length of a hospital stay decreased by 1.2% and 1.1% respectively, and the number of diabetes complications and Diabetes Complications Severity Index (DCSI) score both decreased by 0.001; (3) for medical expenses, a diabetes patient's annual outpatient expenses, annual inpatient expenses, annual medical expenses and annual out-of-pocket expenses decreased by 2.2%, 4.6%, 2.6% and 4.0%; (4) for expenditure of the basic medical insurance funds for a diabetes patient, the annual expenditure on outpatient services increased by 1.1%, and on inpatient services decreased by 4.4%, but on healthcare services didn't change.

CONCLUSION

Decreasing the out-of-pocket expenses for outpatient care appropriately among people with diabetes could make patients have a more rational health-seeking behaviors, a better health status and a more reasonable medical expenses while the expenditure of the basic medical insurance funds is stable totally.

Redefining geriatric trauma: 55 is the new 65

INTRODUCTION

As the prevalence of geriatric trauma patients has increased, protocols are being developed to address the unique requirements of this demographic. However, categorical definitions for geriatric patients vary, potentially creating confusion concerning which patients should be cared for according to geriatric-specific standards. The aim of this study was to identify data-driven cut points for mortality based on age to support implementation of age-driven guidelines.

METHODS

Adults aged 18 to 100 years with blunt or penetrating injury were selected from 95 hospitals' trauma registries. Change point analysis techniques were used to detect inflection points in the proportion of deaths at each age. Based on these calculated points, patients were allocated into age groups, and their characteristics and outcomes were compared. Logistic regression was used to estimate risk-adjusted in-hospital mortality controlling for sex, race, Injury Severity Score, Glasgow Coma Scale, and number of comorbidities.

RESULTS

A total of 255,099 patients were identified (female, 45.7%; mean age, 59.3 years; mean Injury Severity Score, 8.69; blunt injury, 92.6%). Statistically significant increases in mortality rate were noted at ages 55, 77, and 82 years. Compared with the referent group (age, <55 years), adjusted odds ratios (AORs) showed increases in mortality if age 55 to 76 years (AOR, 2.42), age 77 to 81 years (AOR, 4.70), or age 82 years or older (AOR, 6.43). National Trauma Data Standard-defined comorbidities significantly increased once age surpassed 55 years, as the rate more than doubled for each of the older age categories (p < 0.001). As age increased, each group was more likely to be female, have dementia, sustain a ground level fall, and be discharged to a skilled nursing facility (p < 0.001).

CONCLUSION

This large multicenter analysis established a clinically and statistically significant increase in mortality at ages 55, 77, and 82 years. This research strongly suggests that trauma patients older than 55 years be considered for inclusion in geriatric trauma protocols. The other age inflection points identified (77 and 82 years) may also warrant additional specialized care considerations.

LEVEL OF EVIDENCE

Epidemiological study, level III; Care management, level IV.

Associations between mental health disorder and management of physical chronic conditions in China: a pooled cross-sectional analysis

Physical non-communicable diseases (NCDs) and mental health disorders are a rapidly increasing health burden in low-and middle-income countries. This study aims to examine the relationships between mental health disorders and cascade of care in managing four common physical NCDs (hypertension, diabetes, dyslipidemia, chronic kidney disease) in China. We utilized two waves of nationally-representative China Health and Retirement Longitudinal Study (CHARLS 2011, 2015) of older adult population aged 45 and above. A series of unadjusted and adjusted mixed-effect logistic regression was applied to evaluate the association between presence of mental health disorder and physical chronic disease awareness, treatment, and control. We found that the odds of dyslipidemia (AOR 1.81, 95% CI 1.36–2.39) and kidney disease awareness (AOR 2.88, 95% CI 2.12–3.92) were higher for individuals with mental chronic conditions, compared to those without mental chronic conditions. The odds of having hypertension treatment was higher for subjects with mental health disorder, compared to those without (AOR 1.32, 95% CI 1.02–1.70). The odds of having physical chronic conditions controlled was not significantly associated with having mental chronic conditions (P > 0.05). These results indicated that adults with mental health disorder have a greater likelihood of awareness of having dyslipidemia and kidney disease, and receiving treatment for hypertension. Strategies to address the growing burden of physical-mental NCDs in China should include efforts to improve management of patients with comorbid health condition and improve access to continual high-quality treatment after the first diagnosis.

Trajectories of Outpatient Service Utilisation of Hypertensive Patients in Tertiary Hospitals in China

This study aims to identify the characteristics and trajectories of outpatient service utilisation for hypertensive patients in tertiary hospitals. This study also attempts to investigate the determinants of the trajectories of outpatient service utilisation. A total of 9822 patients with hypertension and hypertension-related medical utilisation were recruited in Yichang, China from January 1 to December 31 in 2016. The latent trajectories of outpatient service utilisation were identified through latent class growth analysis. Differences in the demographic characteristics and medical utilisation among patients in different trajectories were tested by one-way ANOVA and chi-square analysis. The predictors of the trajectory groups of outpatient service utilisation were identified through multinomial logistic regression. Four trajectory groups were determined as stable-low (34.7%), low-fluctuating (13.4%), high-fluctuating (22.5%), and stable-high (29.4%). Significant differences were observed in all demographic characteristics (p < 0.001) and medical service utilisation variables (p < 0.001) among the four trajectories except for inpatient cost (p = 0.072). Determinants for outpatient service utilisation patterns include the place of residence, education level, outpatient visit times, inpatient service utilisation, and outpatient cost. Overall, hypertensive patients visiting outpatient units in the tertiary hospital were middle-aged, elderly, and well-educated, and they received poor follow-up services. The four identified latent trajectories have different characteristics and medical utilisation patterns. Trajectory group-based measurements are necessary for hypertension management and economic burden reduction.

Patients with more comorbidities have better detection of chronic conditions, but poorer management and control: findings from six middle-income countries

BACKGROUND

The burden of non-communicable diseases (NCDs) is rising rapidly in middle-income countries (MICs), where NCDs are often undiagnosed, untreated and uncontrolled. How comorbidity impacts diagnosis, treatment, and control of NCDs is an emerging area of research inquiry and have important clinical implications as highlighted in the recent National Institute for Health and Care Excellence guidelines for treating patients suffering from multiple NCDs. This is the first study to examine the association between increasing numbers of comorbidities with being undiagnosed, untreated, and uncontrolled for NCDs, in 6 large MICs.

METHODS

Cross-sectional analysis of the World Health Organisation Study of Global Ageing and Adult Health (WHO SAGE) Wave 1 (2007-10), which consisted of adults aged ≥18 years from 6 populous MICs, including China, Ghana, India, Mexico, Russia and South Africa (overall n = 41, 557).

RESULTS

A higher number of comorbidities was associated with better odds of diagnosis for hypertension, angina, and arthritis, and higher odds of having treatment for hypertension and angina. However, more comorbidities were associated with increased odds of uncontrolled hypertension, angina, arthritis, and asthma. Comorbidity with concordant conditions was associated with improved diagnosis and treatment of hypertension and angina.

CONCLUSION

Patients with more comorbidities have better diagnosis of chronic conditions, but this does not translate into better management and control of these conditions. Patients with multiple NCDs are high users of health services and are at an increased risk of adverse health outcomes. Hence, improving their access to care is a priority for healthcare systems.

University hospitals, general hospitals, private clinics: Place-based differences in patient characteristics and outcomes of AF-A SAKURA AF Registry Substudy

BACKGROUND

Relations between characteristics and outcomes of patients in Japan with atrial fibrillation (AF) and the type of medical facility providing their outpatient care are unclear.

METHODS AND RESULTS

We compared patient characteristics and outcomes between 2 university hospitals (n=1178), 20 general hospitals (n=1308), and 41 private clinics (n=751) (follow-up: 39.3 months) in the prospective SAKURA AF Registry. Private clinic patients were significantly older than university hospital and general hospital patients (73.4±9.2 vs. 70.3±9.8 and 72.6±8.9 years; p<0.001), and these patients' CHADS₂ scores were significantly lower than general hospital, but higher than university hospital patients (1.8±1.1 vs. 2.0±1.2 and 1.6±1.1; p<0.001). The Kaplan-Meier incidences of stroke/systemic embolism (SE) (1.72 vs. 1.58 vs. 0.84 events per 100 patient-years; p=0.120), a cardiovascular event (4.09 vs. 2.44 vs. 1.40; p<0.001), and death were higher (2.39 vs. 2.21 vs. 1.24; p=0.015) for university and general hospital patients than for private clinic patients; the incidences of major bleeding were equivalent (1.78 vs. 1.33 vs. 1.16; p=0.273). After multivariate adjustments, this trend persisted.

CONCLUSIONS

Adverse clinical events at small to large hospitals appear to be higher than those at private clinics, suggesting that careful attention for preventing stroke/SE and cardiovascular events should be paid to patients at a university or general hospital.

Different determinants of vascular and nonvascular deaths in patients with atrial fibrillation: A SAKURA AF Registry substudy

BACKGROUND

The incidence and causes of death among patients in Japan treated for atrial fibrillation (AF), a major determinant of strokes and death, with direct oral anticoagulants (DOACs) are unclear. This study's aim was two-fold: to compare the incidence and causes of death between DOAC and warfarin users in Japan and to identify the factors associated with vascular and nonvascular death in the Japanese AF population.

METHODS

The study was based on the SAKURA AF registry, in which clinical events were tracked in 3267 enrollees from 63 institutions for 2-4 years. Enrollees included warfarin users (n=1577) and users of any of 4 DOACs (n=1690). The incidence, cause, and major determinants of death were analyzed.

RESULTS

During a median 39.3-month follow-up, 200 patients died, with most succumbing to cardiac death (25%), malignancies (21%), or respiratory infections (20%). There was no significant difference in deaths from any cause between warfarin and DOAC users (108 vs. 92 patients, p=0.34). An age ≥75 years was found to be a major determinant of death, but the relative risk (vs. <75 years) was greater for nonvascular death (hazard ratio: 2.85 and 4.97 for age 75-84 and ≥85 years, respectively) than vascular death (2.14 and 2.98 for 75-84 and ≥85 years, respectively). Heart failure, renal dysfunction, and the type of institution were major determinants of vascular death, and a male sex, weight <50kg, and anemia were major determinants of nonvascular death.

CONCLUSIONS

The results of our AF registry-based study, in which two thirds of the enrolled patients succumbed to cardiac death, malignancies, or respiratory infections within 2- 4 years and use of DOACs rather than warfarin did not reduce the mortality, indicated that a management of AF that includes prophylaxis for vascular and nonvascular events in addition to strokes is warranted.

Women are less likely than men to achieve optimal glycemic control after 1 year of treatment: A multi-level analysis of a Korean primary care cohort

We investigated differences in the achievement of glycemic control among newly diagnosed type-2 diabetes patients according to gender using a multi-clinic retrospective cohort study. Optimal glycemic control was defined as hemoglobin A1c (HbA1c) of less than 6.5% after 1 year of diabetes management. A generalized linear mixed model, which controlled for the fixed effects of baseline characteristics and prescribed oral hypoglycemic agent (OHA), was used to calculate the probability of achieving the target HbA1c. The study included 2,253 newly diagnosed type-2 diabetes patients who completed 1 year of diabetic management, including OHA, in the 36 participating primary clinics. Within the study population, the women had an older average age, were less likely to smoke or drink alcohol, and showed lower levels of fasting blood glucose and HbA1c at the time of diagnosis. There were no significant differences by sex in prescribed OHA or median number of visits. After 1 year of diabetes management, 38.9% of women and 40.6% of men achieved the target HbA1c-a small but significant difference. This suggests that type-2 diabetes is managed less well in women than in men.

Prevalence of hypertension and hypertension control rates among elderly adults during the cold season in rural Northeast China: a cross-sectional study

Objective: The burden of noncommunicable diseases (NCDs) is increasing in China, together with economic development and social changes. The prevalence of risk factors for NCDs, such as overweight/obesity, hypertension, diabetes, and dyslipidemia, is reported to be high even among poor residents of rural areas. We aimed to investigate the prevalence of hypertension among elderly adults in rural Northeast China and the proportion with controlled hypertension among those on antihypertensive medication (hypertension control rate). We also aimed to examine the association of hypertension control with health facilities that provide treatment. Methods: We conducted a community-based cross-sectional study in six rural villages of Northeast China from February to early March, 2012. We interviewed 1593 adults aged 50-69 years and measured their blood pressure. We examined the differences in mean blood pressure between participants who obtained antihypertensive medication from village clinics and those who obtained medication from other sources, using analysis of covariance adjusted for several covariates. Results: The prevalence of hypertension among participants was as high as 63.3%, but the hypertension control rate was only 8.4%. Most villagers (98.1%) were not registered in the chronic disease treatment scheme of the public rural health insurance. The mean systolic blood pressure, adjusted for the covariates, of participants who obtained antihypertensive medication from village clinics was significantly lower than that of participants who obtained medication from township hospitals (by 16.5 mmHg) or from private pharmacies (by 7.3 mmHg). Conclusion: The prevalence of hypertension was high and the hypertension control rate low among elderly villagers during the cold season. As treatment at village clinics, which villagers can access during the cold season seems to be more effective than self-medication or treatment at distant hospitals, improving the quality of treatment in village clinics is urgently needed.