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Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
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Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or playing an...
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Updated: May 13, 2026

Multidisciplinary Approach to Obesity Management: A Case Report
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Published on: May 30, 2025

Anamnestic weight loss--Do patients remember correctly?

J Eriksen1, S B Sneftrup

  • 1Medical Department, Regional Hospital West Jutland, Herning, Denmark. jan.eriksen@vest.rm.dk

European Journal of Clinical Nutrition
|March 21, 2013
PubMed
Summary

Patient recall of weight changes is often inaccurate, impacting nutritional risk assessments. This study highlights significant discrepancies between self-reported and recorded weight data in both hospitalized and outpatient settings.

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Area of Science:

  • Clinical Nutrition
  • Patient Assessment
  • Health Informatics

Background:

  • Accurate weight change data is crucial for clinical screening and assessment tools.
  • Anamnestic (recalled) weight data is frequently used in healthcare settings.
  • The reliability of patient-reported weight changes requires investigation.

Purpose of the Study:

  • To compare patient-reported weight changes with recorded medical data.
  • To assess the accuracy of anamnestic weight data in hospitalized and outpatient populations.
  • To identify potential biases in weight change reporting.

Main Methods:

  • Collected anamnestic and recorded weight data from 34 hospitalized patients.
  • Gathered data on weight changes since the last visit from 156 outpatients.
  • Compared self-reported weight fluctuations against documented patient records.

Main Results:

  • Significant discrepancies were found between reported and recorded weight changes in both groups.
  • Only 75% of patients reporting weight loss had accurate records.
  • 25% of patients reporting no weight change had actually lost over 1 kg, indicating poor recall.

Conclusions:

  • Patient recollection of weight changes is unreliable for a substantial percentage of individuals.
  • Inaccurate weight data can lead to misjudgment of nutritional risk, potentially causing over- or underestimation.
  • Emphasizes the need for validated methods to obtain accurate weight change information in clinical practice.