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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

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Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

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In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

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Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

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Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

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Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
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Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration01:28

Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration

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Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area.
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Related Experiment Video

Updated: Nov 15, 2025

Oral Health Assessment by Lay Personnel for Older Adults
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EQ-5D-5L reference values for the German general elderly population.

Ole Marten1, Wolfgang Greiner2

  • 1School of Public Health, Bielefeld University, Universitaetsstrasse 25, 33615, Bielefeld, Germany. ole.marten@uni-bielefeld.de.

Health and Quality of Life Outcomes
|March 7, 2021
PubMed
Summary
This summary is machine-generated.

This study provides health profile reference values for Germany's elderly population using the EQ-5D-5L. Older age correlates with more health problems and lower quality of life, with notable gender differences emerging after age 80.

Keywords:
EQ-5D-5LHealth state utilitiesHealth-related quality of lifePopulation normsReference values

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Area of Science:

  • Gerontology
  • Health Economics
  • Psychometrics

Background:

  • Reference values are crucial for comparing health data against a population.
  • The EQ-5D-5L instrument measures health-related quality of life (HRQoL).
  • Understanding HRQoL in the elderly is vital for healthcare planning.

Purpose of the Study:

  • To establish normative reference values for the EQ-5D-5L index and EQ Visual Analogue Scale (VAS) in the German elderly population (65+).
  • To describe the health profile of this demographic.
  • To analyze age and gender-specific differences in HRQoL.

Main Methods:

  • Analysis of a subset from the German EQ-5D-5L valuation study.
  • Utilized self-reported EQ-5D-5L data.
  • Stratified analysis by age groups (65-69, 70-74, 75-79, >79) and gender.

Main Results:

  • Average EQ-5D-5L index was 0.84 (SD 0.22) and EQ VAS was 73.2 (SD 18.5).
  • 21.4% reported no health problems across all dimensions.
  • Increasing age was associated with more health problems and declining HRQoL (index and VAS scores).
  • Men reported fewer problems than women, with the largest gap observed in those over 80.

Conclusions:

  • HRQoL in the oldest elderly (>79) is less stable and differs from younger elderly individuals.
  • Conventional age categorizations may obscure important age-related HRQoL differences.
  • Detailed EQ-5D-5L reference values are recommended for future German studies involving the elderly.