Video Experimental Relacionado
Updated: May 5, 2026
06:58
Method and Instrumented Fixture for Femoral Fracture Testing in a Sideways Fall-on-the-Hip Position
Published on: August 17, 2017
9.2K
Factores asociados con el riesgo a 5 años de fractura de cadera en mujeres posmenopáusicas
John Robbins1, Aaron K Aragaki, Charles Kooperberg
1Department of Internal Medicine, University of California at Davis School of Medicine, Sacramento, CA 95817, USA. jarobbins@ucdavis.edu
JAMA
|November 29, 2007
Resumen
Un nuevo algoritmo predice el riesgo de fractura de cadera a 5 años en mujeres posmenopáusicas utilizando 11 factores clínicos comunes. Esta herramienta ayuda a identificar a las personas de alto riesgo para estrategias de prevención específicas.
Área de la Ciencia:
- Gerontología Gerontología.
- Epidemiología La epidemiología.
- La medicina preventiva es la medicina preventiva de las enfermedades.
Sus antecedentes:
- Las fracturas anuales de cadera en los EE.UU. superan los 329.000, causando una significativa morbilidad, mortalidad y costos de atención médica.
- La identificación temprana de individuos de alto riesgo es crucial para estrategias efectivas de prevención de fracturas de cadera.
Objetivo del estudio:
- Desarrollar y validar un algoritmo predictivo para el riesgo a 5 años de fractura de cadera en mujeres posmenopáusicas.
- Identificar los factores clínicos clave que contribuyen al riesgo de fractura de cadera.
Principales métodos:
- Se utilizaron datos de 93.676 mujeres en el estudio observacional de la Iniciativa de Salud de la Mujer (WHI, por sus siglas en inglés) para desarrollar el algoritmo.
- Validación del algoritmo utilizando datos de 68.132 mujeres en el ensayo clínico WHI.
- Evaluación de la precisión predictiva utilizando las curvas de características operativas del receptor (ROC) y las métricas de área debajo de la curva (AUC).
Principales resultados:
- Se identificaron 11 factores que predicen la fractura de cadera: edad, salud autoinformada, peso, estatura, raza / etnia, actividad física, fractura previa, fractura parental, tabaquismo, uso de corticosteroides y diabetes.
- El algoritmo logró un AUC del 80% (95% IC, 0.77-0.82) en la cohorte de validación.
- Desarrolló un sistema simplificado de puntuación para la evaluación práctica de riesgos.
Conclusiones:
- Un algoritmo basado en 11 factores clínicos fácilmente disponibles puede predecir el riesgo de fractura de cadera a 5 años en diversas mujeres posmenopáusicas.
- El algoritmo demuestra un rendimiento predictivo comparable a las evaluaciones de densidad ósea.
- Se necesita más investigación para evaluar la utilidad clínica y el impacto de esta herramienta predictiva en las decisiones de tratamiento.
Más Videos Relacionados
Videos de Conceptos Relacionados
01:18Factors Affecting Illness
5.4K
When a person's physical, emotional, intellectual, social development or spiritual functioning is compromised, this deviation from a healthy normal state is called illness. Illness creates stress that in turn harms individuals. Irritation, anger, denial, hopelessness, and fear are behavioral and emotional changes an individual experiences in the phases of illness. A variety of factors influence a person's health and well-being.
For instance, risk factors are connected to illness,...
For instance, risk factors are connected to illness,...
5.4K
01:26Factors Affecting the Risk of Infection
14.1K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
14.1K
01:29Bone Disorders
8.0K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
8.0K
01:28Menopause
5.0K
Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
5.0K
01:18Factors Affecting Protein-Drug Binding: Drug-Related Factors
673
Drug binding to proteins is a complex phenomenon influenced by various drug-related factors, each playing a significant role in the interaction between drugs and proteins within the body.
One crucial factor in drug-protein binding is the drug's lipophilicity or its affinity for fat. More lipophilic drugs tend to have higher binding extents. For example, highly lipophilic drugs like cloxacillin exhibit substantial protein binding, with as much as 95% of the drug binding to proteins. In...
One crucial factor in drug-protein binding is the drug's lipophilicity or its affinity for fat. More lipophilic drugs tend to have higher binding extents. For example, highly lipophilic drugs like cloxacillin exhibit substantial protein binding, with as much as 95% of the drug binding to proteins. In...
673
01:17Factors Affecting Renal Clearance: Renal Impairment
588
Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
588