Medical outcomes study social support survey (MOS-SSS) in patients with chronic disease: A psychometric assessment

Merino-Soto C.; Núñez Benítez M.Á.; Domínguez-Guedea M.T.; Toledano-Toledano F.; Moral de la Rubia J.; Astudillo-García C.I.; Rivera-Rivera L.; Leyva-López A.; Angulo-Ramos M.; Flores Laguna O.A.; Hernández-Salinas G.; Rodríguez Castro J.H.; González Peña O.I.; Garduño Espinosa J. · Frontiers in Psychiatry (2023) · DOI: 10.3389/fpsyt.2022.1028342

Resumen

Purpose: Currently, information on the psychometric properties of the Medical outcomes study-social support survey (MOS-SSS) for patients with chronic disease in primary health care, suggests problems in the dimensionality, specifically predominant unidimensionality in a multidimensional measure. The aim of this study was to determine the internal structure (dimensionality, measurement invariance and reliability) and association with other variables. Methods: A total of 470 patients with chronic disease from a Family Medicine Unit at the Instituto Mexicano del Seguro Social, IMSS, with a mean age of 51.51 years were included. Participants responded to the Questionnaire of Sociodemographic Variables (Q-SV), SF-36 Health-Related Quality of Life Scale–version 1.1, and MOS-SSS. Results: Non-parametric (Mokken scaling analysis) and parametric (confirmatory factor analysis) analyses indicated unidimensionality, and three-factor model was not representative. A new 8-item version (MOS-S) was developed, where measurement invariance, equivalence with the long version, reliability, and relationship with the SF-36 were satisfactory. Conclusion: The MOS-SSS scale is unidimensional, and the shortened version yields valid and reliable scores for measuring social support in patients with chronic disease at the primary health care. Copyright

Instituciones: Universidad de San Martín de Porres