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Vol. 101. Issue 11.
Pages 755-764 (November 2023)
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Vol. 101. Issue 11.
Pages 755-764 (November 2023)
Original article
Protocolization of multicenter clinical studies in the digital era. Is useful data centralization by a data-manager?
Protocolización de estudios clinicos multicentricos en la era digital. ¿Tiene utilidad la centralización de datos por un data-manager?
Antonio Ríosa,b,
Corresponding author
arzrios@um.es

Corresponding author.
, José Antonio Puñal-Rodríguezc, Pablo Morenod, Enrique Mercader-Cidonchae, Eduardo Ferrero-Herrerof, Manuel Duráng,h, Guadalupe Ruiz-Merinoi, José Ruiz-Pardoj, José Manuel Rodrígueza,b, Pedro Ramón Gutiérrezk,l
a Unidad de Cirugía Endocrina, Servicio de Cirugía General y de Aparato Digestivo, Instituto Murciano de Investigación Bio-Sanitaria (IMIB-Arrixaca), Hospital Clínico Universitario Virgen de la Arrixaca, Servicio Murciano de Salud, Murcia, Spain
b Departamento de Cirugía, Pediatría y Obstetricia, y Ginecología, Universidad de Murcia, Murcia, Spain
c Servicio de Cirugía General y Aparato Digestivo, Complejo Universitario de Santiago de Compostela, Spain
d Cirugía Endocrina, Hospital Universitario de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
e Sección de Cirugía Endocrino-Metabólica, Hospital Universitario Gregorio Marañón, Instituto de Investigación Biosanitaria Gregorio Marañón, Madrid, Spain
f Servicio de Cirugía General, Aparato Digestivo y Trasplante de Órganos Abdominales, Hospital Universitario 12 de Octubre, Madrid, Spain
g Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario Rey Juan Carlos, Móstoles, Madrid, Spain
h Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
i FFIS, Fundación para la Formación e Investigación Sanitarias de la Región de Murcia, Murcia, Spain
j Servicio de Cirugía General y del Aparato Digestivo, Hospital Torrecardenas, Almería, Spain
k Servicio de Urología, Complejo Hospitalario Universitario de Canarias (CHUC), Santa Cruz de Tenerife, Spain
l Departamento de Cirugía, Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
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Tables (7)
Table 1. Percentage of disagreement between the initial assessment conducted at the hospital of origin and the final assessment centralized by a data manager.
Table 2. Agreement between the initial assessment made at the hospital of origin and the final assessment centralized by a data manager on the assessment of the T component (size) of the TNM system.
Table 3. Agreement between the initial assessment at the study center of origin and the centralized final assessment by a data manager regarding the N component (lymph node involvement) of the TNM system.
Table 4. Agreement between the initial assessment at the study center of origin and the centralized final assessment by a data manager regarding the M component M (systemic involvement) of the TNM system.
Table 5. Agreement between the initial assessment at the study center of origin and the centralized final assessment by a data manager regarding staging according to the TNM system.
Table 6. Agreement between the initial assessment at the study center of origin and the centralized final assessment by a data manager regarding the ATA risk of recurrence.
Table 7. Agreement between the initial assessment at the study center of origin and the centralized final assessment by a data manager regarding the TI-RADS ultrasound score.
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Abstract
Introduction

In multicenter studies, the protocolization of data is a critical phase that can generate biases.The objective is to analyze the concordance and reliability of the data obtained in a clinical multicenter study between the protocolization in the center of origin and the centralized protocolization of the data by a data -manager.

Methods

National multicenter clinical study about an infrequent carcinoma. A double protocolization of the data is carried out: (a) center of origin; and (b) centralized by a data manager: The concordance between the data is analyzed for the global data and for the two groups of the project: (a) study group (Familiar carcinoma, 30 researchers protocolize); (b) control group (Sporadic carcinoma, 4 people protocolize). Interobserver variability is evaluated using Cohen's kappa coefficient.

Results

The study includes a total of 689 patients with carcinoma, 252 in the study group and 437 in the control group. Regarding the concordance analysis of the tumor stage, 2.5% of disagreements were observed and the concordance between people who protocolize was near perfect (Kappa = 0.931). Regarding the evaluation of the recurrence risk, disagreements occurred in 7% of the cases and the concordance was near perfect (Kappa = 0.819). Regarding the sonography evaluation (TIRADS), the disagreements were 6.9% and the concordance was near perfect (Kappa = 0.922). Also, 4.6% of transcription errors were detected.

Conclusions

In multicenter clinical studies, the centralized data protocolization o by a data-manager seems to present similar results to the direct protocolization in the database in the center of origin.

Keywords:
Multicenter clinical study
Infrequent carcinoma
Data-manager
Protocolization
Concordance
Database
Resumen
Introducción

En los estudios multicéntricos la protocolización de los datos es una fase crítica que puede generar sesgos, sobre todo en estudios clínicos con presupuesto limitado. El objetivo es analizar la concordancia y cofiabilidad de los datos obtenidos en un estudio multicéntrico clínico entre la protocolización el centro de origen y la protocolización centralizada mediante un data-manager.

Método

Estudio clínico multicéntrico de prevalencia nacional sobre un carcinoma familiar infrecuente, realizándose una doble protocolización de los datos: (a) en el centro de origen; y, (b) centralizada con un data-manager: La concordancia se analiza para el global de los datos y para los dos subgrupos del proyecto: (a) grupo a estudio (Carcinoma familiar. Protocolizan 30 investigadores); y (b) grupo control (Carcinoma esporádico. Protocolizan 4). Las diferencias interobservador se evalúan mediante el Indice de Kappa de Cohen.

Resultados

Se incluyen 689 pacientes, 252 del grupo a estudio y 437 del grupo control. Respecto al análisis de concordancia del estadio tumoral se han objetivado un 2,5% de discordancias, siendo alta la concordancia entre protocolizadores (Kappa = 0,931). Respecto a la valoración del riesgo de recidiva las discordancias fueron del 7% de los casos, siendo alta la concordancia (Kappa = 0,819). Respecto a la clasificación ecográfica TIRADS las discordancias son del 6,9% y la concordancia es alta (Kappa = 0,922). Se han detectado un 4,6% de errores de transcripción.

Conclusiones

En los estudios multicéntricos clínicos la protocolización centralizada de los datos por un data-manager parece presentar resultados similares a la protocolización directa en la base de datos en el centro de origen.

Palabras clave:
Estudio multicéntrico clínico
Carcinoma infrecuente
Data-manager
Protocolización
Concordancia
Base de datos

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