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ABSTRACT

Psychometric properties of the PROMIS® v2.0 Cognitive Function Short Form (SF-8) in a Mexican cancer population

doi: 10.24875/j.gamo.M22000234

Full Article in PDF (English)

Propiedades psicométricas del instrumento PROMIS® v2.0 Función Cognitiva Forma Breve (SF-8) en población oncológica mexicana

doi: 10.24875/j.gamo.22000012

Full Article in PDF (Spanish)


VOLUME 21 - NUMBER 4 / October-December (Original article / Artículo original)


Astrid X. Romero-Hernández, Facultad de Psicología, UNAM, Ciudad de México, México; Servicio de Psicooncología, Instituto Nacional de Cancerología, Ciudad de México, México
Óscar Galindo-Vázquez, Servicio de Psicooncología, Instituto Nacional de Cancerología, Ciudad de México, México
Frank J. Penedo, Cancer Survivorship Program, Sylvester Comprehensive Cancer Center, Miami, Florida, EE.UU.
Juan E. Bargalló, Department of Oncology, Instituto Nacional de Cancerología (INCAN), Mexico City, Mexico



Background: People with cancer present subjective cognitive complaints during or after cancer treatment that can affect their quality of life. The evaluation of these through self-report instruments allows their referral to neuropsychological care. Objective: To determine the psychometric properties of PROMIS® v2.0 Cognitive Function Brief Form (SF-8) in a sample of Mexican patients with cancer. Method: 200 people with an average age of 46.34, mostly in stages II and III, in active treatment or follow-up. Design: Instrumental, non-experimental cross-sectional. Instruments: SF-8 and Effects on quality-of-life subscale of the Cancer Therapy Functional Assessment Instrument-Cognitive Function. Analysis: Factor structure, confirmatory factor analysis and concurrent validity test. Results: An unifactorial model was obtained that explained 73.27% of the variance, internal consistency index α = 0.99, with high factorial loads (0.69, –0.92), which was corroborated with the confirmatory analysis, with excellent adjustment indexes. The correlation between instruments was r: 0.69 (p < 0.01). Conclusions: The Mexican version of the SF-8 is a valid and reliable instrument for the measurement of subjective cognitive complaints, so its use in the clinical and research field is recommended.


Keywords: Cognitive function. Cognitive impairment. Subjective cognitive impairment. Cancer. Quality of life.