Propiedades psicométricas de la Escala de Medida del Estado Actual (MOCS) en pacientes mexicanos con cáncer

Marcos Espinoza Bello; Oscar  Galindo Vázquez; Frank J.  Penedo; Miguel Ángel Jiménez Ríos; Patricia Ortega Andeane; Anna Scavuzzo; Mirna García Méndez; Abelardo Meneses-García

doi:10.22235/cp.v17i2.3009

Authors

Marcos Espinoza Bello Instituto Nacional de Cancerología, Universidad Nacional Autónoma de México https://orcid.org/0000-0003-3090-8098
Oscar Galindo Vázquez Instituto Nacional de Cancerología https://orcid.org/0000-0001-9395-2921
Frank J. Penedo University of Miami https://orcid.org/0000-0002-2780-0417
Miguel Ángel Jiménez Ríos Instituto Nacional de Cancerología https://orcid.org/0000-0002-2231-1921
Patricia Ortega Andeane Universidad Nacional Autónoma de México https://orcid.org/0000-0003-2696-3166
Anna Scavuzzo Instituto Nacional de Cancerología https://orcid.org/0000-0001-9558-8086
Mirna García Méndez Universidad Nacional Autónoma de México https://orcid.org/0000-0002-2334-0740
Abelardo Meneses-García Instituto Nacional de Cancerología https://orcid.org/0000-0003-4032-4598

DOI:

https://doi.org/10.22235/cp.v17i2.3009

Keywords:

stress, cancer, México, validation study, MOCS

Abstract

Background: Cancer is a public health problem, and stress is one of the psychosocial variables associated to this disease, which calls for the need to have a reliable scale to measures stress in the Hispanic population with cancer. Objective: To determine the psychometric properties of the Measurement of Current Status (MOCS) Scale in Mexican cancer patients. Method: Study design: Cross-sectional, non-experimental instrumental. A total of 197 patients aged 18-81 years, at any clinical stage, receiving cancer treatment or follow-up were included. Instruments: MOCS and emotional distress thermometer. Statistical analysis: Confirmatory factor analysis was performed to evaluate the fit of the model to the data using the maximum likelihood estimation and cut-off points. Results: Two models were obtained. The first, self-perceived current state, had an alpha of .90 with an explained variance of 74.2 %; the second, non-specific effect, with an alpha of .61 and an explained variance of 74.3 %. The confirmatory factor analysis showed that both models had indexes suggesting stability and acceptable adjustment. Scores are shown by interquartile ranges for each model. Conclusions: The Mexican version of the MOCS is reliable and valid; with a confirmatory factor structure similar to the original version. Therefore, we support its use in the clinical and research setting with cancer patients.

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