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Related Concept Videos

Observational Studies01:11

Observational Studies

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 example of...
Longitudinal Studies01:26

Longitudinal Studies

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...
Longitudinal Research02:20

Longitudinal Research

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...
Study Designs in Epidemiology01:20

Study Designs in Epidemiology

Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Cross-Sectional Research01:50

Cross-Sectional Research

In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
Case Studies01:22

Case Studies

There are many research methods available to psychologists in their efforts to understand, describe, and explain behavior and the cognitive and biological processes that underlie it.

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Are birth characteristics related to bone quality measures in young adults? The HUNT study, Norway.

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Related Experiment Video

Updated: May 19, 2026

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster (Nephrops norvegicus)
05:57

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster (Nephrops norvegicus)

Published on: April 8, 2019

Cohort Profile: the HUNT Study, Norway.

S Krokstad1, A Langhammer, K Hveem

  • 1HUNT Research Centre, Department of Public Health and General Practice, Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Levanger Hospital, Nord-Trøndelag Health Authority, Norway.

International Journal of Epidemiology
|August 11, 2012
PubMed
Summary
This summary is machine-generated.

The HUNT Study is a large Norwegian health study tracking 125,000 participants since the 1980s. It provides valuable data on lifestyle, disease prevalence, and genetic links to health.

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Area of Science:

  • Public Health
  • Epidemiology
  • Genetics

Background:

  • The HUNT Study is a series of population-based health surveys in Norway, initiated in the 1980s.
  • It initially focused on hypertension, diabetes, tuberculosis, and quality of life, but has since broadened its scope.
  • The study encompasses three distinct cohorts (HUNT1, HUNT2, HUNT3) with extensive participant data.

Purpose of the Study:

  • To investigate health determinants, lifestyle factors, and the prevalence and incidence of somatic and mental illnesses.
  • To explore associations between disease phenotypes and genotypes.
  • To establish a long-term biobank for future research on health and disease.

Main Methods:

  • Longitudinal data collection from approximately 125,000 Norwegian participants aged 20+ in Nord-Trøndelag County.
  • Utilizes questionnaires, interviews, clinical measurements, and biological samples (blood and urine).
  • Integrates data with national health registries for comprehensive analysis.

Main Results:

  • Provides insights into health-related behaviors and conditions across different time periods.
  • Identifies prevalence and incidence patterns of various diseases.
  • Establishes links between lifestyle, environment, genetics, and health outcomes.

Conclusions:

  • The HUNT Study is a vital resource for understanding population health trends and disease etiology.
  • Its longitudinal design and comprehensive data facilitate in-depth research on health determinants.
  • The biobank ensures continued research potential for decades.