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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivos</span><p class="elsevierStyleSimplePara elsevierViewall">Adaptar una &#171;escala de creencias&#187; sobre el c&#225;ncer de mama al castellano&#44; evaluando su validez y reproducibilidad&#46;</p> <span class="elsevierStyleSectionTitle">M&#233;todos</span><p class="elsevierStyleSimplePara elsevierViewall">Validaci&#243;n de una escala de 3 dimensiones &#8211;susceptibilidad&#44; beneficios y barreras&#8211; con respuestas tipo Likert&#44; en un estudio de casos y controles&#44; donde los casos eran las mujeres no participantes en un programa de cribado de c&#225;ncer de mama y los controles las participantes&#46; Se realiz&#243; un proceso de traducci&#243;n-retrotraducci&#243;n y un comit&#233; t&#233;cnico analiz&#243; las discrepancias&#46; Se pilot&#243; la comprensi&#243;n en 17 mujeres&#46; Participaron en el estudio 274 mujeres y a 32 de ellas se les repiti&#243; el cuestionario en el intervalo de un mes para valorar la reproducibilidad&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">El coeficiente de correlaci&#243;n intraclase fue de 0&#44;89&#44; 0&#44;70 y 0&#44;90&#44; y el coeficiente alfa de Cronbach de 0&#44;71&#44; 0&#44;48 y 0&#44;57 para susceptibilidad&#44; beneficios y barreras&#44; respectivamente&#46; Respecto a la validez de constructo&#44; del an&#225;lisis factorial exploratorio se extrajeron 3 factores&#44; lo que explicaba un 34&#37; de la varianza&#46; El an&#225;lisis factorial confirmatorio se&#241;ala un ajuste al l&#237;mite de los datos al modelo te&#243;rico&#46; Las mujeres de m&#225;s edad perciben menos susceptibilidad al c&#225;ncer de mama y declaran m&#225;s barreras para hacerse una mamograf&#237;a&#46; Las de menor nivel de estudios perciben m&#225;s barreras&#46; La escala no ha mostrado su capacidad para predecir la participaci&#243;n en el programa&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p class="elsevierStyleSimplePara elsevierViewall">La escala presenta problemas de validez y homogeneidad&#46; Las dimensiones de beneficios y barreras necesitan un proceso de adaptaci&#243;n y validaci&#243;n profunda para su utilizaci&#243;n&#46;</p>"
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        "titulo" => "Abstract"
        "resumen" => "<span class="elsevierStyleSectionTitle">Objectives</span><p class="elsevierStyleSimplePara elsevierViewall">To adapt the &#171;health belief model&#187; on breast cancer screening to Spanish&#44; and to asses its validity and reliability&#46;</p> <span class="elsevierStyleSectionTitle">Methods</span><p class="elsevierStyleSimplePara elsevierViewall">We assessed validation of a scale with 3 dimensions &#40;susceptibility&#44; benefits and barriers&#41; with Likert responses in a case-control study&#46; Cases were women not participating in a breast cancer screening program and controls consisted of participating women&#46; A process of translation and back-translation was carried out and a technical committee analyzed discrepancies&#46; Comprehension was tested in 17 women&#46; Two hundred seventy-four women participated in the study&#46; In 32 of these women&#44; the questionnaire was administered twice after a 1-month interval to estimate its reliability&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">The intraclass correlation coefficients were 0&#46;89&#44; 0&#46;70 and 0&#46;90&#44; and Cronbach&#39;s alpha coefficient was 0&#46;71&#44; 0&#46;48 and 0&#46;57 for susceptibility&#44; benefits and barriers&#44; respectively&#46; Construct validity&#58; from the factorial analysis&#44; 3 factors were obtained explaining 34&#37; of the variance&#46; The confirmatory factorial analysis indicated acceptable goodness-of-fit of the data to the theoretical model&#46; Older women perceived less susceptibility to breast cancer as well as greater barriers to attending screening&#46; Women with a lower educational level perceived greater barriers&#46; The scale did not seem to predict adherence to the program&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p class="elsevierStyleSimplePara elsevierViewall">The adapted scale presents problems of validity and internal consistency&#46; The dimensions of benefits and barriers require thorough adaptation and validation before the scale is used in Spanish women&#46;</p>"
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Vol. 21. Núm. 4.
Páginas 282-289 (julio - agosto 2007)
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Vol. 21. Núm. 4.
Páginas 282-289 (julio - agosto 2007)
Originales
Open Access
Adaptación y validación del cuestionario de susceptibilidad, beneficios y barreras ante el cribado con mamografía
Adaptation and validation of a questionnaire on susceptibility, benefits and barriers in breast cancer screening with mammography
Visitas
1168
Magdalena Estevaa,
Autor para correspondencia
mesteva@ibsalut.caib.es

Correspondencia: Magdalena Esteva. Gabinete Técnico. Gerencia Atención Primaria de Mallorca. Ibsalut. Reina Esclaramunda, 9. 07003 Palma de Mallorca. España.
, Joana Ripolla, Carmen Sánchez-Contadorb, Francisca Colladob, Cristian Tebéc, Eusebi Castañod, Matías Torrente
a Gabinete Técnico, Gerencia de Atención Primaria de Mallorca, Ibsalut, Palma de Mallorca, España
b Programa de detección precoz del cáncer de mama, Dirección General de Salud Pública, Conselleria de Salut i Consum de les Illes Balears; Palma de Mallorca, España
c Agència d’Avaluació de Tecnologia i Recerca Mèdiques, Conselleria de Salut i Consum, Generalitat Catalunya, Barcelona, España
d Dirección General de Planificación y Financiamiento. Conselleria de Salut i Consum de les Illes Balears, Palma de Mallorca, España
e Dirección Médica, Gerencia de Área de Menorca, Ibsalut, Palma de Mallorca, España
Este artículo ha recibido

Under a Creative Commons license
Información del artículo
Resumen
Objetivos

Adaptar una «escala de creencias» sobre el cáncer de mama al castellano, evaluando su validez y reproducibilidad.

Métodos

Validación de una escala de 3 dimensiones –susceptibilidad, beneficios y barreras– con respuestas tipo Likert, en un estudio de casos y controles, donde los casos eran las mujeres no participantes en un programa de cribado de cáncer de mama y los controles las participantes. Se realizó un proceso de traducción-retrotraducción y un comité técnico analizó las discrepancias. Se pilotó la comprensión en 17 mujeres. Participaron en el estudio 274 mujeres y a 32 de ellas se les repitió el cuestionario en el intervalo de un mes para valorar la reproducibilidad.

Resultados

El coeficiente de correlación intraclase fue de 0,89, 0,70 y 0,90, y el coeficiente alfa de Cronbach de 0,71, 0,48 y 0,57 para susceptibilidad, beneficios y barreras, respectivamente. Respecto a la validez de constructo, del análisis factorial exploratorio se extrajeron 3 factores, lo que explicaba un 34% de la varianza. El análisis factorial confirmatorio señala un ajuste al límite de los datos al modelo teórico. Las mujeres de más edad perciben menos susceptibilidad al cáncer de mama y declaran más barreras para hacerse una mamografía. Las de menor nivel de estudios perciben más barreras. La escala no ha mostrado su capacidad para predecir la participación en el programa.

Conclusiones

La escala presenta problemas de validez y homogeneidad. Las dimensiones de beneficios y barreras necesitan un proceso de adaptación y validación profunda para su utilización.

Palabras clave:
Estudios de validación
Escalas
Comportamiento en salud
Neoplasias de mama
Cribado poblacional
Mamografía
Abstract
Objectives

To adapt the «health belief model» on breast cancer screening to Spanish, and to asses its validity and reliability.

Methods

We assessed validation of a scale with 3 dimensions (susceptibility, benefits and barriers) with Likert responses in a case-control study. Cases were women not participating in a breast cancer screening program and controls consisted of participating women. A process of translation and back-translation was carried out and a technical committee analyzed discrepancies. Comprehension was tested in 17 women. Two hundred seventy-four women participated in the study. In 32 of these women, the questionnaire was administered twice after a 1-month interval to estimate its reliability.

Results

The intraclass correlation coefficients were 0.89, 0.70 and 0.90, and Cronbach's alpha coefficient was 0.71, 0.48 and 0.57 for susceptibility, benefits and barriers, respectively. Construct validity: from the factorial analysis, 3 factors were obtained explaining 34% of the variance. The confirmatory factorial analysis indicated acceptable goodness-of-fit of the data to the theoretical model. Older women perceived less susceptibility to breast cancer as well as greater barriers to attending screening. Women with a lower educational level perceived greater barriers. The scale did not seem to predict adherence to the program.

Conclusions

The adapted scale presents problems of validity and internal consistency. The dimensions of benefits and barriers require thorough adaptation and validation before the scale is used in Spanish women.

Key words:
Validation studies
Scales
Health behavior
Breast neoplasms
Mass screening
Mammography
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