Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Factors affecting Blood pressure01:28

Factors affecting Blood pressure

Several physiological and lifestyle factors influence blood pressure (BP). Understanding these factors is crucial as they are significant in patient education and blood pressure management.
Physiological Factors:
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
Hypertension I: Introduction01:28

Hypertension I: Introduction

Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
Behrens–Fisher Test00:57

Behrens–Fisher Test

The Behrens-Fisher test is a statistical method designed to address the Behrens-Fisher problem, which arises when comparing the means of two normally distributed populations with unequal variances. Unlike the Student's t-test, which assumes equal variances, the Behrens-Fisher test allows for mean comparison without this restrictive assumption. This flexibility makes it particularly valuable in scenarios where two independent samples exhibit normality but lack variance homogeneity.
This test is...
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
Friedman Two-way Analysis of Variance by Ranks01:21

Friedman Two-way Analysis of Variance by Ranks

Friedman's Two-Way Analysis of Variance by Ranks is a nonparametric test designed to identify differences across multiple test attempts when traditional assumptions of normality and equal variances do not apply. Unlike conventional ANOVA, which requires normally distributed data with equal variances, Friedman's test is ideal for ordinal or non-normally distributed data, making it particularly useful for analyzing dependent samples, such as matched subjects over time or repeated measures from...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Optimizing Antihypertensive Care for Tanzanians Living With HIV: Effectiveness Outcomes From the COACH Pilot Trial.

Journal of acquired immune deficiency syndromes (1999)·2026
Same author

Implementation barriers and facilitators of a virtual telehealth program for patients with persistently poorly controlled type 2 diabetes mellitus: a rapid qualitative analysis approach.

BMC health services research·2026
Same author

Expanding Technology-Enabled, Nurse-Delivered Chronic Disease Care : A Pragmatic, Randomized, Effectiveness-Implementation Trial.

Annals of internal medicine·2026
Same author

Navigating the heat: implementation challenges and opportunities for heat alert communication and rural health data infrastructure.

Frontiers in public health·2026
Same author

Understanding and addressing the health impacts of wildfires on Latines in California.

The journal of climate change and health·2026
Same author

Patient and Clinician Perspectives on Chronic Pain Communication in Advanced Kidney Disease.

Journal of the American Geriatrics Society·2026

Related Experiment Videos

Racial differences in hypertension knowledge: effects of differential item functioning.

Brian J Ayotte1, Ranak Trivedi, Hayden B Bosworth

  • 1Center for Health Services Research in Primary Care, VA Medical Center (152), 508 Fulton St; Durham, NC 27705, USA. brian.ayotte@duke.edu

Ethnicity & Disease
|April 4, 2009
PubMed
Summary

Accurate assessment of hypertension knowledge reveals racial disparities. Accounting for measurement issues like differential item functioning is crucial for understanding these differences in chronic illness self-management.

Related Experiment Videos

Area of Science:

  • Health literacy and chronic disease management
  • Health disparities research
  • Psychometrics and measurement in health

Background:

  • Health-related knowledge is vital for chronic illness self-management.
  • Accurate measurement of health knowledge is essential for understanding population health.
  • Previous assessments may have underestimated racial differences in hypertension knowledge.

Purpose of the Study:

  • To accurately assess racial differences in hypertension knowledge.
  • To utilize latent variable modeling to control for sociodemographic factors.
  • To account for measurement issues, including differential item functioning (DIF).

Main Methods:

  • Cross-sectional study with 1,177 participants (45% African American).
  • Employed a multiple indicator multiple causes (MIMIC) modeling approach.
  • Analyzed data on race, education, sex, financial status, age, and a six-item hypertension knowledge questionnaire.

Main Results:

  • Females, Whites, and those with higher education reported greater hypertension knowledge.
  • Differential item functioning (DIF) was detected for two items based on race.
  • Failure to account for DIF underestimated the knowledge gap between White and African American participants.

Conclusions:

  • Careful measurement of health constructs is necessary to avoid inaccurate estimations of racial differences.
  • Measurement issues, such as DIF, can significantly impact understanding of health knowledge disparities.
  • Findings highlight the need for culturally sensitive and psychometrically sound health knowledge assessments.