ABSTRACT
BACKGROUND/OBJECTIVES: Indices predictive of central obesity include waist circumference (WC) and waist-to-height ratio (WHtR). These data are lacking for Colombian adults. This study aims at establishing smoothed centile charts and LMS tables for WC and WHtR; appropriate cutoffs were selected using receiver-operating characteristic analysis based on data from the representative sample. SUBJECTS/METHODS: We used data from the cross-sectional, national representative nutrition survey (ENSIN, 2010). A total of 83 220 participants (aged 20-64) were enroled. Weight, height, body mass index (BMI), WC and WHtR were measured and percentiles calculated using the LMS method (L (curve Box-Cox), M (curve median), and S (curve coefficient of variation)). Receiver operating characteristics curve analyses were used to evaluate the optimal cutoff point of WC and WHtR for overweight and obesity based on WHO definitions. RESULTS: Reference values for WC and WHtR are presented. Mean WC and WHtR increased with age for both genders. We found a strong positive correlation between WC and BMI (r=0.847, P< 0.01) and WHtR and BMI (r=0.878, P<0.01). In obese men, the cutoff point value is 96.6 cm for the WC. In women, the cutoff point value is 91.0 cm for the WC. Receiver operating characteristic curve for WHtR was also obtained and the cutoff point value of 0.579 in men, and in women the cutoff point value was 0.587. A high sensitivity and specificity were obtained. CONCLUSIONS: This study presents first reference values of WC and WHtR for Colombians aged 20-64. Through LMS tables for adults, we hope to provide quantitative tools to study obesity and its complications.
Subject(s)
Obesity/epidemiology , Waist Circumference , Waist-Height Ratio , Adolescent , Adult , Age Distribution , Area Under Curve , Colombia/epidemiology , Cross-Sectional Studies , Databases, Factual , Female , Humans , Male , Middle Aged , Nutrition Surveys , Reference Values , Sex Distribution , Statistics as Topic , Young AdultABSTRACT
Objetivo: El cuestionario desarrollado en EE. UU. por Jette et al. se emplea como herramienta para estimar las actitudes, las creencias, los conocimientos y los comportamientos hacia la práctica basada en la evidencia (PBE). Este instrumento fue adaptado y validado en lengua española por Guerra et al., pero carece de estudios de validez en población hispana. El objetivo de esta investigación fue estimar las propiedades psicométricas, como forma de obtener evidencias de validez del instrumento para el uso propuesto. Método: La muestra se compone de 1.064 fisioterapeutas de Colombia y que completaron la versión on-line del cuestionario. La fiabilidad y la reproducibilidad fueron estimadas mediante el procedimiento alfa de Cronbach, prueba-reprueba con el coeficiente de correlación intra-clase de Lin y el índice de kappa de Cohen, respectivamente. Se aplicó un análisis factorial exploratorio para analizar la estructura factorial. Resultados: El cuestionario ha mostrado a nivel global alta consistencia interna, moderada estabilidad temporal, aceptable reproducibilidad, apropiada validez de constructo y adecuada bondad de ajuste a una estructura unidimensional. El análisis factorial exploratorio identificó 2 factores que explican el 37,953% de la varianza. Conclusiones: Los resultados obtenidos en este cuestionario avalan la utilización de este instrumento con este tipo de muestra, desde el punto de vista de la fiabilidad y la estructura factorial. No obstante, es necesario realizar nuevos estudios que aporten evidencias de validez basadas en la relación con otras variables, para determinar su utilidad como instrumento de prueba que evalúe la PBE
Objective: The questionnaire developed in the U.S by Jette et al. is used as a screening to olto estimate the attitudes, beliefs, knowledge and behaviors toward evidence-based practice(EBP). This instrument was adapted and validated in the Spanish language by Guerra et al., but lacking validity studies in the Hispanic population. This research has aimed to estimate the psychometric properties as a way to obtain evidence on the validity of the instruments for the use proposed. Method: The sample was made up of 1,064 Physiotherapists in Colombia who completed the on-line version of the questionnaire. Its reliability and reproducibility were estimated with Cronbachs alpha procedure, the test-retest with Lin correlation coefficient and Cohens kappaindex, respectively. An exploratory factor analysis was used to analyze the factorial structure. Results: The questionnaire has shown global high internal consistency, moderate temporal stability, acceptable reproducibility, and construct validity appropriate. Exploratory factorial analysis identified two factors that account for 37.953% of the variance. Conclusions: The results obtained in this study support the use of this questionnaire for this type of sample from the viewpoint of reliability and factor structure. However, further studies are needed to provide evidence of validity based on the relationship with other variables to determine its usefulness as a questionnaire to evaluate the EBP
Subject(s)
Humans , Psychometrics/instrumentation , Physical Therapy Modalities , Evidence-Based Practice , Reproducibility of Results , Reproducibility of Results , Health Knowledge, Attitudes, PracticeABSTRACT
Introducción La práctica basada en la evidencia científica (PBE) se define como un proceso cuyo objetivo es la selección de los mejores argumentos científicos para la resolución de los problemas que se plantean en la práctica clínica. El propósito de este estudio fue evaluar el estado actual de la investigación y las principales barreras para la incorporación del uso de la PBE en fisioterapeutas colombianos. Materiales y métodos Estudio transversal, multicéntrico y descriptivo en 221 fisioterapeutas colombianos sin formación previa en PBE. Se aplicó una encuesta de 18 ítems divida en 3 apartados diferenciados: a) información de la titulación; b) aplicación de PBE, y c) áreas y líneas de desempeño profesional e investigativo. Adicionalmente, se reunieron datos de información sociodemográfica. Resultados El promedio de edad fue 26,6 ± 6,1 años; el 76% de los encuestados tenían titulación profesional y solo el 3,2% nivel de maestría. Un 43,4% de los encuestados buscan información en fuentes primarias y secundarias, mientras que el 28,5% respondió nunca hacerlo. El 55,7% usaban búsquedas mediante Altavista, Google, Hotbot y Lycos, y solo un 13% usaba Tesauros. El 48,9% respondía haber realizado estudios de tipo descriptivo, el 10,4% experimentales y el 3,2% de casos y controles. Un 10,9% de los encuestados desarrollaba proyectos en cuidado crítico, el 7,2% en enfermedad articular y el 4,5% en enfermedad neurológica. Conclusión El estudio confirma la escasa actividad científica y las barreras que limitan la inclusión de la PBE en profesionales de fisioterapia de Colombia. Múltiples estrategias de cambio serán necesarias para facilitar la inclusión de actividades encaminadas a la mejora de la competencia profesional en esta materia (AU)
Introduction Scientific evidence based practice (SEBP) is defined as a process whose objective is the selection of the best scientific arguments to solve the problems occurring in the clinical practice. This study has aimed to evaluate the current status of the investigation and the principal barriers existing for the Columbian physiotherapists to incorporate SEBP. Material and methods A cross-sectional, multicenter and descriptive study was performed in 221 Colombian physiotherapists with no previous training in SEBP. An 18-item survey divided into 3 differentiated sections was applied. These sections were: 1) degree information, 2) application of SEBP and 3) areas and lines of professional and investigational work. In addition, sociodemographic information data were collected. Results Average age was 26.6 ± 6.1 years; 76% of those surveyed had a professional degree and only 3.2% a master's degree. A total of 43.4% of those surveyed looked for information in primary and secondary sources while 28.5% stated they never did so. Searcy was performed in Altavista, Google, Hotbot, Lycos by 55.7% and only 13% used Tesauros. 48.9% stated they had carried out descriptive type studies, 10.4% experimental and 3.2% case-controls. Of those surveyed, 10.9% developed projected in critical care, 7.2% in articular disease and 4.5% in neurological disorder. Conclusion This study confirms the scarce scientific activity and barriers that limit including SEPB in physiotherapy professionals in Colombia. Multiple strategies of change will be necessary to facilitate the inclusion of activities aimed at the improvement of professional expertise in this material(AU)
