Publications by authors named "Ruihai Yang"

Background: Effectiveness of a non-physician community health-care provider-led intensive blood pressure intervention on cardiovascular disease has not been established. We aimed to test the effectiveness of such an intervention compared with usual care on risk of cardiovascular disease and all-cause death among individuals with hypertension.

Methods: In this open-label, blinded-endpoint, cluster-randomised trial, we recruited individuals aged at least 40 years with an untreated systolic blood pressure of at least 140 mm Hg or a diastolic blood pressure of at least 90 mm Hg (≥130 mm Hg and ≥80 mm Hg for those at high risk for cardiovascular disease or if currently taking antihypertensive medication).

View Article and Find Full Text PDF

Background: This study aimed to identify the subgroups of individuals sharing similar blood pressure (BP) trajectories from childhood to youth and explore the associations of these trajectories with arterial stiffness in adulthood.

Methods: A group-based trajectory model was used to identify BP trajectories among 2,082 individuals in the Hanzhong adolescent hypertension cohort by using BP values repeatedly measured at four visits from childhood (6-15 years) to youth (14-23 years). The brachial-ankle pulse wave velocity (baPWV) was examined 30 years after the baseline survey.

View Article and Find Full Text PDF

Background: Data on the association of isolated diastolic hypertension (IDH) in childhood with adult cardiovascular risk are scarce. This study aimed to estimate the prevalence of IDH in adolescents and to explore the impact of IDH in childhood on adult subclinical target organ damage (STOD).

Methods: This longitudinal study consisted of 1738 school children (55.

View Article and Find Full Text PDF

Background: The prevalence of uncontrolled hypertension is high and increasing in low-income and middle-income countries. We tested the effectiveness of a multifaceted intervention for blood pressure control in rural China led by village doctors (community health workers on the front line of primary health care).

Methods: In this open, cluster randomised trial (China Rural Hypertension Control Project), 326 villages that had a regular village doctor and participated in the China New Rural Cooperative Medical Scheme were randomly assigned (1:1) to either village doctor-led multifaceted intervention or enhanced usual care (control), with stratification by provinces, counties, and townships.

View Article and Find Full Text PDF

The pulsatile stress in the microcirculation may contribute to development or progression of chronic kidney disease. However, there is no prospective data confirming whether pulsatile stress in early life affect renal function in middle age. The authors performed a longitudinal analysis of 1738 participants aged 6-15 years at baseline, an ongoing Adolescent Prospective Cohort with a follow-up of 30 years.

View Article and Find Full Text PDF

Background: In China, hypertension prevalence is high and increasing while the control rate is low, especially in rural areas. Traditionally, village doctors play an important role in infectious disease control and delivering essential health services to rural residents. We aim to test the effectiveness of a village doctor-led multifaceted intervention compared with usual care on blood pressure (BP) control and cardiovascular disease (CVD) among rural residents with hypertension in China.

View Article and Find Full Text PDF

The purpose of this study was to assess the association of blood pressure (BP) measurements with the risk of cardiovascular disease (CVD) and examine whether central systolic BP (CSBP) predicts CVD better than brachial BP measurements (SBP and pulse pressure [PP]). Based on a cross-sectional study conducted in 2009-2010 with follow-up in 2016-2017 among 35- to 64-year-old subjects in China, we evaluated the performance of non-invasively predicted CSBP over brachial BP measurements on the first CVD events. Each BP measurement, individually and jointly with another BP measurement, was entered into the multivariate Cox proportional-hazards models, to examine the predictability of central and brachial BP measurements.

View Article and Find Full Text PDF

Background And Objectives: The aim of the study was to examine the associations of uric acid (UA) in blood and urine with subclinical renal damage (SRD) and its progression in a Chinese cohort.

Methods: 1) 2342 participants from our previously established cohort who were followed up in 2017 were included. Cross-sectional analysis was used to examine the relationships between serum and urinary UA and the risk of SRD.

View Article and Find Full Text PDF

Background: Although high BP is one of the most important factors affecting renal function, whether longitudinal BP trajectories in early life course are associated with renal function damage in later life is unclear.

Methods: To investigate the correlation between BP trajectories from childhood to adulthood and renal function in middle age, we used group-based trajectory models to identify BP trajectories in 2430 individuals (aged 6-15 years old at baseline) participating in the ongoing Hanzhong Adolescent Hypertension Cohort. We tested the association between these trajectories and subclinical renal damage in middle age, adjusting for several covariates.

View Article and Find Full Text PDF

Objective: The relationship between childhood risk factors and long-term arterial stiffness was explored.

Methods: A baseline survey was conducted in 4623 school children aged 6-15 years in rural areas of Hanzhong city, Shaanxi, in 1987. According to three independent measurements of SBP in 1987, 1989, and 1992, cases of the same age and sex with continuous SBP at least 75 percentile were classified as the high-blood pressure (BP) group, whereas those with SBP less than 50 percentile were classified as the normal-BP group.

View Article and Find Full Text PDF

Background/aims: This study aimed to investigate the association of renalase with blood pressure (BP) and brachial-ankle pulse wave velocity (baPWV) in order to better understand the role of renalase in the pathogenesis of hypertension and atherosclerosis.

Methods: A total of 344 subjects with normal kidney function were recruited from our previously established cohort in Shaanxi Province, China. They were divided into the normotensive (NT) and hypertensive (HT) groups or high baPWV and normal baPWV on the basis of BP levels or baPWV measured with an automatic waveform analyzer.

View Article and Find Full Text PDF

The aim of this study was to assess the status of cardiovascular health among a rural population in Northwest China and to determine the associated factors for cardiovascular health.A population-based cross-sectional study was conducted in the rural areas of Hanzhong in Northwest China. Interview, physical examination, and fasting blood glucose and lipid measurements were completed for 2693 adults.

View Article and Find Full Text PDF

Objective: This study aimed to apply quantile regression to study Hanzhong rural residents health survey data, explore the local distribution characteristics of health-related quality of life (HRQOL) and influencing factors and present the value of quantile regression applying in analysis of HRQOL.

Methods: In this cross-sectional population-based study, we evaluated the HRQOL of 2 737 subjects through filling Short-Form Health Survey (SF-36). Quantile regression model was used to compare MCS and PCS scores and evaluate the associated factors.

View Article and Find Full Text PDF

Hypertensive patients have more complex health care needs and are more likely to have poorer health-related quality of life than normotensive people. The awareness of hypertension could be related to reduce health-related quality of life. We propose the use of quantile regression to explore more detailed relationships between awareness of hypertension and health-related quality of life.

View Article and Find Full Text PDF

Objectives: To evaluate the prevalence and determinants of metabolic syndrome (MetS) among adults in a rural area of Northwest China.

Methods: A population-based cross-sectional study was conducted in 2010 among adults aged 18 to 80 years in rural areas of Hanzhong, in Northwest China. Interview, physical and clinical examinations, and fasting blood glucose and lipid measurements were completed for 2990 adults.

View Article and Find Full Text PDF

Objective: To analyze the associations between menopause and hypertension/isolated systolic hypertension (ISH) among rural females in Hanzhong, Shaanxi Province, China.

Methods: In this cross-sectional study, 3030 residents were selected by stratified random sampling and investigated by questionnaire survey and physical examinations. Data of the females were analyzed to explore the impact of menopause on blood pressure by quantile regression and to investigate the associations between menopause and hypertension, ISH, and isolated distolic hypertension (IDH) by logistic regression.

View Article and Find Full Text PDF

Objectives: To assess trends in average blood pressure levels and prevalence, awareness, treatment, and control of hypertension among adults in a rural area of Northwest China, and to determine associated risk factors.

Methods: Four cross-sectional population-based surveys were conducted between 1982 and 2010 among randomly selected adults in rural areas of Hanzhong, in Northwest China. Data on blood pressure, body mass index, family history of hypertension, and socio-demographic and lifestyle characteristics were collected in similar way by trained investigators in four surveys.

View Article and Find Full Text PDF

Objective: To investigate the prevalences of overweight and obesity in the rural communities in Hanzhong, Shaanxi Province.

Methods: A total of 3030 residents in the rural areas of Hanzhong city were selected by stratified random sampling method to take questionnaire-based survey and physical examinations.

Results: The data of 3017 valid subjects (1048 men and 1969 women) entered the final analysis.

View Article and Find Full Text PDF

Objective: To examine the relationship between cigarette smoking and body mass index (BMI) as well as waist circumference (WC) of men from 9 rural districts of Hanzhong, Shaanxi province.

Methods: Cross-sectional data was analyzed from Hanzhong Health Survey on rural residents in 2010. Quantile regression mode was used to compare the results using the BMI (WC) and smoking status (degree) as the dependent variables and independent variable and confounding factors were also controlled.

View Article and Find Full Text PDF

Objective: To investigate the relationship between dietary patterns and hypertension in Hanzhong city of Shanxi province.

Methods: A cross-sectional survey on dietary pattern and hypertension together with a semi-quantitative food frequency questionnaire was conducted among rural residents aged from 18 to 80 in Hanzhong of Shanxi province in 2010. Factor analysis by SPSS was used to identify food patterns based on the frequency of food.

View Article and Find Full Text PDF