Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2021 Apr 7;21(3):e8149.
doi: 10.5867/medwave.2021.03.8149.

Minimal clinically important difference: The basics

[Article in Spanish, English]
Affiliations
Review

Minimal clinically important difference: The basics

[Article in Spanish, English]
Julieta Aldana Salas Apaza et al. Medwave. .

Abstract

This article is part of a collaborative methodological series of narrative reviews on biostatistics and clinical epidemiology. This review aims to present basic concepts about the minimal clinically important difference and its use in the field of clinical research and evidence synthesis. The minimal clinically important difference is defined as the smallest difference in score in any domain or outcome of interest that patients can perceive as beneficial. It is a useful concept in several aspects since it links the magnitude of change with treatment decisions in clinical practice and emphasizes the primacy of the patients perception, affected by endless variables such as time, place, and current state of health, all of which can cause significant variability in results.

Este artículo es parte de una serie metodológica colaborativa de revisiones narrativas sobre temáticas de bioestadística y epidemiología clínica. El objetivo de esta revisión es presentar conceptos básicos sobre la diferencia mínima clínicamente importante y su utilización en el ámbito de la investigación clínica y la síntesis de evidencia. La diferencia mínima clínicamente importante se define como la diferencia más pequeña en la puntuación en cualquier dominio o desenlace de interés que los pacientes son capaces de percibir como beneficiosa. Es un concepto útil en varios aspectos, ya que vincula la magnitud del cambio con las decisiones de tratamiento en la práctica clínica y enfatiza la primacía de la percepción del paciente, que es afectada por un sinfín de variables tales como el tiempo, el lugar y el estado actual de salud, que pueden ocasionar gran variabilidad en los resultados.

Keywords: Evidence-Based Practice; GRADE Approach; Minimal Clinically Important Difference; Patient Reported Outcome Measures; Systematic Reviews as Topic; Evidence-Based Medicine.

PubMed Disclaimer