RESUMO
OBJECTIVE: To analyse the psychometric properties, internal structure, and relationship with anthropometric indicators of the Body Shape Questionnaire (BSQ) among Mexican university students according to the measurement invariance approach. METHODS: An instrumental study was carried out to assess the psychometric properties, validity, and reliability of the BSQ. The analysis of the measurement invariance was performed using the Least Squares Estimation, and weighted by adjusted variance and polychoric correlations after assessing different measurement models for BSQ in each group. The scores of the final version were correlated with anthropometric indicators by the Pearson correlation coefficient. RESULTS: As regards the dimensional analysis, all of the previous models for BSQ have favourable adjustment rates, although those with a single factor show more robust evidence. The configural invariance was accepted; suggesting that the one-dimensional structure is common for both men and women. However, 16-item factorial loadings were statistically different between the groups. Hence, they were discarded and an 18-item version (BSQ-18) was obtained, which is considered invariant as regards gender. In addition, there is a direct relationship between the scores of the BSQ-18 version and the body mass index, waist circumference, and fat percentage. Satisfactory indicators were found as regards stability. CONCLUSIONS: The BSQ-18 can be used with men and women, and has high reliability indicators to be conducted in clinical settings to assess eating disorders and obesity among university students.
Assuntos
Imagem Corporal/psicologia , Somatotipos/psicologia , Estudantes/psicologia , Inquéritos e Questionários , Adolescente , Antropometria , Índice de Massa Corporal , Feminino , Humanos , Masculino , México , Psicometria , Reprodutibilidade dos Testes , Universidades , Adulto JovemRESUMO
OBJECTIVE: To evaluate the coverage, characteristics and the risk of suicide in the indigenous people of Tabatinga in the Brazilian Amazon. METHODS: An active surveillance strategy for suicide cases was used: records of the Ministry of Health, the Municipal Health Secretariat, the Special Indigenous Health District of the Upper River Solimões (Distrito Sanitario Especial Indígena Alto Río Solimões), the Military Hospital of Tabatinga, the National Indian Foundation (Fundación Nacional del Indio) and the civil registry offices were examined from 2007 to 2011 for individuals over 9 years of age. Adjusted rates were estimated using the direct method and according to age. A descriptive analysis was performed and the hypothesis tests were considered significant if p-values were <0.05. RESULTS: The coverage of indigenous suicide was 82.8%, since 11 (17.2%) were classified as hidden suicides. For men between 15 and 29 years of age, and for women aged from 12 to 20 years, the probability of suicide was around 70.0%. In 17.2% of the sample there was a record of alcohol consumption before death and relationship between victims. The corrected adjusted mortality rate was 111.7/100,000 (95% CI, 84.6-148.6). CONCLUSIONS: The risk of suicide in the indigenous people of the Tabatinga is very high. Coping strategies should consider the complex relationship between suicide and alcohol consumption, gender differences and the existence of vulnerable groups, such as young people, especially those with close relatives who have committed suicide.
Assuntos
Consumo de Bebidas Alcoólicas , Indígenas Sul-Americanos , Povos Indígenas , Suicídio/estatística & dados numéricos , Adolescente , Adulto , Brasil , Criança , Análise por Conglomerados , Feminino , Humanos , Masculino , Medição de Risco , Distribuição por Sexo , Adulto JovemRESUMO
RESUMEN Objetivo: Analizar las propiedades psicométricas, estructura interna y relación con indicadores antropométricos del Body Shape Questionnaire (BSQ) en universitarios mexicanos, partiendo de un enfoque de la invarianza de medición. Métodos: Se realizó un estudio instrumental, orientado a la evaluación de las propiedades psicométricas, validez y fiabilidad, del BSQ. Se realizó análisis de invarianza de la medición por el método de estimación mínimos cuadrados ponderados con varianza ajustada y correlaciones policóricas, previa evaluación de diferentes modelos de medición del BSQ en cada grupo. Las puntuaciones de la versión final se correlacionaron con indicadores antropométricos mediante el coeficiente de correlación de Pearson. Resultados: En el análisis dimensional, todos los modelos previos del BSQ presentan índices de ajuste favorables, aunque aquellos de un solo factor presente son los que tienen evidencia más robusta. Se aceptó la invarianza configural, lo que indica que la estructura unidimensional es común a varones y mujeres. Sin embargo, las cargas factoriales de 16 ítems fueron estadísticamente diferentes entre los grupos, por lo que se descartaron y se obtuvo una versión de 18 ítems (BSQ-18), que se considera invariante respecto al sexo. Además, hay relación directa entre las puntuaciones de la versión del BSQ-18 y el índice de masa corporal, la circunferencia de cintura y el porcentaje de grasa. En cuanto a la fiabilidad, se hallaron indicadores satisfactorios. Conclusiones: El BSQ-18 es aplicable tanto a varones como a mujeres y tiene indicadores de fiabilidad elevados que posibilitan su uso en entornos clínicos para la evaluación en el abordaje de trastornos de la conducta alimentaria y obesidad en jóvenes universitarios.
ABSTRACT Objective: To analyse the psychometric properties, internal structure, and relationship with anthropometric indicators of the Body Shape Questionnaire (BSQ) among Mexican university students according to the measurement invariance approach. Methods: An instrumental study was carried out to assess the psychometric properties, validity, and reliability of the BSQ. The analysis of the measurement invariance was performed using the Least Squares Estimation, and weighted by adjusted variance and polychoric correlations after assessing different measurement models for BSQ in each group. The scores of the final version were correlated with anthropometric indicators by the Pearson correlation coefficient. Results: As regards the dimensional analysis, all of the previous models for BSQ have favourable adjustment rates, although those with a single factor show more robust evidence. The configural invariance was accepted; suggesting that the one-dimensional structure is common for both men and women. However, 16-item factorial loadings were statistically different between the groups. Hence, they were discarded and an 18-item version (BSQ-18) was obtained, which is considered invariant as regards gender. In addition, there is a direct relationship between the scores of the BSQ-18 version and the body mass index, waist circumference, and fat percentage. Satisfactory indicators were found as regards stability. Conclusions: The BSQ-18 can be used with men and women, and has high reliability indicators to be conducted in clinical settings to assess eating disorders and obesity among university students
Assuntos
Humanos , Masculino , Feminino , Adolescente , Somatotipos , Estudantes , Transtornos da Alimentação e da Ingestão de Alimentos , Índice de Massa Corporal , Análise dos Mínimos Quadrados , Inquéritos e Questionários , Circunferência da Cintura , Identidade de GêneroRESUMO
Abstract Objective: To evaluate the coverage, characteristics and the risk of suicide in the indigenous people of Tabatinga in the Brazilian Amazon. Methods: An active surveillance strategy for suicide cases was used: records of the Ministry of Health, the Municipal Health Secretariat, the Special Indigenous Health District of the Upper River Solimões (Distrito Sanitario Especial Indígena Alto Río Solimões), the Military Hospital of Tabatinga, the National Indian Foundation (Fundación Nacional del Indio) and the civil registry offices were examined from 2007 to 2011 for individuals over 9 years of age. Adjusted rates were estimated using the direct method and according to age. A descriptive analysis was performed and the hypothesis tests were considered significant if p-values were <0.05. Results: The coverage of indigenous suicide was 82.8%, since 11 (17.2%) were classified as hidden suicides. For men between 15 and 29 years of age, and for women aged from 12 to 20 years, the probability of suicide was around 70.0%. In 17.2% of the sample there was a record of alcohol consumption before death and relationship between victims. The corrected adjusted mortality rate was 111.7/100,000 (95% CI, 84.6-148.6). Conclusions: The risk of suicide in the indigenous people of the Tabatinga is very high. Coping strategies should consider the complex relationship between suicide and alcohol consumption, gender differences and the existence of vulnerable groups, such as young people, especially those with close relatives who have committed suicide.
Resumen Objetivo: Evaluar el alcance, las características y el riesgo de suicidio de los indígenas de Tabatinga, en la Amazonia brasileira. Métodos: Se utilizó una estrategia de vigilancia activa del suicidio y se examinaron los registros de mayores de 9 años, de 2007-2011, del Ministerio de Salud, la Secretaría Municipal de Salud, el Distrito Sanitario Especial Indígena Alto Río Solimões, el Hospital Militar de Tabatinga, la Fundación Nacional del Indio y la notaría del Registro Civil. Las tasas ajustadas se calcularon utilizando el método directo, según la edad. Se realizó un análisis descriptivo y se consideró que las pruebas de hipótesis eran significativas si p < 0,05. Resultados: El alcance del suicidio indígena fue del 82,8%, ya que 11 (17,2%) se clasificaron como suicidios ocultos. Alrededor del 70,0% de la probabilidad de suicidio de los varones se situó a los 15-29 años y la de las mujeres, a los 12-20 años. En el 17,2% de la muestra, se registró consumo de alcohol antes de la muerte y relación parental entre las víctimas. La tasa de mortalidad ajustada corregida fue 111,7/100.000 (IC95%, 84,6-148,6). Conclusiones: El riesgo de suicidio de los indígenas de Tabatinga es muy alto. Las estrategias de afrontamiento deben considerar la compleja relación entre el suicidio y el consumo de alcohol, las diferencias de sexo y la existencia de grupos vulnerables, como los jóvenes, especialmente aquellos con parientes cercanos que ya cometieron suicidio.