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Related Concept Videos

Obesity01:24

Obesity

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The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
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In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
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Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...
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Drug metabolism, a critical process in the liver, involves two primary phases: Phase I reactions and Phase II conjugation. Obesity introduces significant alterations in this metabolic process, primarily due to fatty infiltration of the liver, leading to conditions such as nonalcoholic fatty liver disease (NAFLD). This condition can modify the activities of both Phase I and II enzymes, impacting how drugs are metabolized in obese patients.Phase I metabolism sees variable effects across...
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Epidemiology, known as the cornerstone of public health, involves studying the distribution and determinants of health-related events in defined populations and applying these insights to control health issues. This is essential for understanding how diseases spread, identifying populations at greater risk, and implementing measures to control or prevent outbreaks. Epidemiology addresses not only infectious diseases but also non-communicable conditions like cancer and cardiovascular disease,...
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Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:  
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Multidisciplinary Approach to Obesity Management: A Case Report
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Obesity Epidemiology Worldwide.

Cassandra Arroyo-Johnson1, Krista D Mincey2

  • 1Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8100, St Louis, MO 63110, USA.

Gastroenterology Clinics of North America
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Obesity is a global health issue linked to diseases like diabetes and cancer. Understanding obesity definitions, estimates, and risk factors is key for clinicians to reduce its impact.

Keywords:
BMIEpidemiologyObesityRacial/ethnic disparitiesSocial determinants of health

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Area of Science:

  • Public Health
  • Epidemiology
  • Clinical Medicine

Background:

  • Obesity is a significant global public health concern with increasing prevalence worldwide.
  • Obesity is associated with numerous adverse health outcomes, including diabetes, hypertension, and cancer.
  • Obesity rates remain highest in the United States, highlighting regional disparities.

Purpose of the Study:

  • To provide a framework for clinicians to understand and address the burden of obesity.
  • To define obesity, discuss appropriate use of body mass index (BMI), and present recent prevalence estimates.
  • To identify key risk factors for obesity and incorporate social determinants of health.

Main Methods:

  • Literature review and synthesis of current data on obesity prevalence and risk factors.
  • Discussion of the definition of obesity and the appropriate application of body mass index (BMI) calculations.
  • Integration of the Healthy People 2020 framework, focusing on a place-based approach to social determinants of health.

Main Results:

  • Obesity prevalence has risen globally over the past two decades.
  • The United States exhibits the highest rates of obesity compared to other nations.
  • A comprehensive understanding of obesity, including its definition, measurement, and risk factors, is essential for effective clinical intervention.

Conclusions:

  • A clear framework encompassing obesity definition, BMI, estimates, risk factors, and social determinants is crucial for clinical practice.
  • Addressing obesity requires a multi-faceted approach that considers the social and environmental context of health.
  • Clinicians play a vital role in reducing the public health burden of obesity through informed management strategies.