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Inicio Revista Española de Cirugía Ortopédica y Traumatología (English Edition) Chronobiological analysis of patients admitted with upper limb fractures to hosp...
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Vol. 52. Issue 6.
Pages 345-352 (November - December 2008)
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Vol. 52. Issue 6.
Pages 345-352 (November - December 2008)
Original paper
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Chronobiological analysis of patients admitted with upper limb fractures to hospitals in Castille-Leon between 1999 and 2004
Análisis cronobiológico de los ingresos de fracturas de la extremidad superior en los hospitales de SCACYL 1999-2004
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F. Ardura Aragóna,
Corresponding author
fardura@ono.com

Corresponding author: C/ Estudios 2, 1.° B. 47005 Valladolid. España.
, J. Andrés de Llanob, J.R. Garmendia Leizac, J. Ardura Fernándezd
a Department of Trauma Surgery. FREMAP. Miguel de Cervantes University. Valladolid. Spain
b Department of Pediatrics. Río Carrión Healthcare Center. Palencia. Spain
c Burgos Healthcare Center. Burgos. Spain
d Department of Pediatrics. Valladolid University Hospital. Professor of Pediatrics of the School of Medicine of the University of Valladolid. Valladolid. Spain. Members of the Valladolid Chronobiology Recognized Research Group. University of Valladolid. Valladolid. Spain
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Article information
Purpose

To assess the relationship between fractures of the upper limb and the time dimension.

Materials and methods

A study was conducted of 16,736 patients admitted to Castile-Leon hospitals with a fracture of their upper limb between 1999 and 2004. The following analyses were performed to investigate the existence of rhythm: an univariate analysis performed together with a logistic regression, a rhythmometric study with spectral analysis (Fourier transform) and cosinor method.

Results

Patients’ mean age was 45.1 ± 25.7 years, with 57.9% of males. The fracture was sustained in an urban milieu in 62.8% of cases and as a result of a road accident in 21.7%. Surgery was performed in 63.1% of cases, with a mortality rate of 1.6%. Mean hospitalization time was 7.21 days. Logistic regression showed a lower risk for older females, in the urban setting. Spectral analysis: dominant period of 365 days. Cosinor analysis: significant rhythm (acrophase: 13/8 and batiphase: 31/12). All subgroups except for deceased patients and those over 84 years showed rhythm (acrophases: 19/7 to 8/9).

Conclusions

This group of fractures, as well as the majority of subgroups, shows rhythm with acrophases in the summer. Traffic and non-traffic have similar rhythms. The data from the chronobiological study can be applied to clinical practice by planning resources with time-based criteria.

Key words:
fracture
trauma surgery
orthopedics
hospitalization
chronobiology
biorhythms
variability
circannual
seasonal
Objetivo

Valoración de la relación entre las fracturas de la extremidad superior y la dimensión temporal.

Material y método

Se estudiaron 16.736 pacientes ingresados en hospitales del sistema público de salud de Castilla y León con fracturas de la extremidad superior, de 1999 a 2004. Se realizó un análisis univariante y una regresión logística, estudio ritmométrico con análisis espectral (transformada de Fourier) y método cosinor, para indagar la existencia de ritmo.

Resultados

La edad media de los enfermos fue de 45,1 ± 25,7 años, con un 57,9% de varones. La fractura se produjo en el ámbito urbano en un 62,8% y por accidente de tráfico en un 21,7%. Fue tratado con cirugía el 63,1%, con una mortalidad del 1,6%. La estancia media fue de 7,21 días. La regresión logística mostró menor riesgo para mujeres, ámbito urbano y aumento de la edad. Análisis espectral: período dominante de 365 días. Análisis de cosinor: ritmo significativo (acrofase: 13/8 y batifase: 31/12). Todos los subgrupos, excepto exitus y mayores de 84 años, mostraron ritmo (acrofases de 19/7 a 8/9).

Conclusiones

Este grupo de fracturas y la mayoría de subgrupos muestran ritmo con acrofases en verano. Tráfico y no tráfico tienen ritmos semejantes. Los datos del estudio cronobiológico se pueden aplicar en la clínica, mediante la planificación de los recursos con sentido temporal.

Palabras clave:
fractura
traumatología
ortopedia
hospitalización
cronobiología
biorritmos
variabilidad
circanual
estacional
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2007 SECOT Foundation Award for Clinical Research in Orthopedic and Trauma Surgery.

Copyright © 2008. Sociedad Española de Cirugía Ortopédica y Traumatología (SECOT). All rights reserved
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