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Related Concept Videos

Longitudinal Studies01:26

Longitudinal Studies

656
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
656
Assessment of the Cardiovascular System I: Subjective Data01:23

Assessment of the Cardiovascular System I: Subjective Data

1.1K
A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
1.1K
Longitudinal Research02:20

Longitudinal Research

13.7K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
13.7K
Coronary Artery Disease IV: Preventive Measures01:26

Coronary Artery Disease IV: Preventive Measures

839
Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
839
Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

1.1K
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
1.1K
Observational Studies01:11

Observational Studies

11.4K
Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
11.4K

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Updated: Mar 28, 2026

Influence of Emotional Factors on the Efficacy of Acupuncture Treatment for Overweight Complicated with Hyperlipidemia: A Retrospective Cohort Study
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Influence of Emotional Factors on the Efficacy of Acupuncture Treatment for Overweight Complicated with Hyperlipidemia: A Retrospective Cohort Study

Published on: November 21, 2025

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Qingdao Port Cardiovascular Health Study: a prospective cohort study.

Erica S Spatz1, Xianyan Jiang2, Jiapeng Lu3

  • 1Center for Outcomes Research and Evaluation, Yale University/Yale-New Haven Hospital, New Haven, Connecticut, USA Section of Cardiovascular Medicine, Yale School of Medicine, New Haven, Connecticut, USA.

BMJ Open
|December 15, 2015
PubMed
Summary

This study tracked cardiovascular disease risk factors in Chinese port employees, finding significant increases in hypertension, diabetes, and hyperlipidemia between 2000 and 2010.

Keywords:
cardiovascular diseasescohort studieslongitudinal studiesoutcomes researchpopulation surveillance

Related Experiment Videos

Last Updated: Mar 28, 2026

Influence of Emotional Factors on the Efficacy of Acupuncture Treatment for Overweight Complicated with Hyperlipidemia: A Retrospective Cohort Study
03:05

Influence of Emotional Factors on the Efficacy of Acupuncture Treatment for Overweight Complicated with Hyperlipidemia: A Retrospective Cohort Study

Published on: November 21, 2025

768

Area of Science:

  • Epidemiology
  • Cardiovascular Health
  • Public Health

Background:

  • China faces rising rates of heart disease and stroke.
  • Epidemiology of cardiovascular disease in China may differ from global populations.
  • Population-based studies are crucial for understanding cardiovascular disease in China.

Purpose of the Study:

  • Investigate the burden of cardiovascular disease in China.
  • Identify sociodemographic, biological, environmental, and clinical risk factors for cardiovascular disease onset and outcomes.
  • Provide insights into the unique risk factor profiles within the Chinese population.

Main Methods:

  • Recruited 32,404 employees (aged ≥18) from Qingdao Port Group (2000-2013).
  • Collected 221,923 annual health assessments including questionnaires, physical exams, ECG, and lab analyses.
  • Utilized X-rays, echocardiograms, carotid ultrasounds, and planned bio-sample collection for future genetic/proteomic analyses.

Main Results:

  • Significant increases observed in cardiovascular risk factors from 2000 to 2010.
  • Hypertension rose from 26.4% to 39.4%.
  • Diabetes increased from 3.3% to 8.9%; hyperlipidemia from 5.0% to 33.6%; obesity (BMI >28) from 14.1% to 18.6%.

Conclusions:

  • Early findings highlight a concerning rise in key cardiovascular risk factors.
  • The study aims to generate novel insights into cardiovascular disease epidemiology in China.
  • Results will inform population-based strategies to improve cardiovascular health.