Design and validation of a predictive model for determining the risk of developing fibromyalgia.

OBJECTIVES: Fibromyalgia is a prevalent disease of unknown aetiology and is difficult to diagnose. Despite the availability of the American College of Rheumatology criteria for diagnosis, it continues to be a challenge in the field of primary health care in terms of identifying individuals with susceptibility to developing the disease. The aim of this study is to design and validate a predictive model of fibromyalgia in subjects with a history of chronic pain. METHODS: This multicentre observational retrospective cohort study was performed on patients aged >18 years, who visited four primary health centres between 2017 and 2020, with a diagnosis of fibromyalgia or arthritis. The Bootstrapping resampling method was used for the validation of the model. RESULTS: A total of 198 subjects with fibromyalgia (93 with osteoarthritis, 20 with other types of arthritis, 4 with rheumatoid arthritis) and 120 without fibromyalgia (116 with osteoarthritis, 23 with other types of arthritis, 7 with rheumatoid arthritis) participated in the study. The predictive factors of the final model were self-reported age at onset of symptoms, first-line family history of neurological diseases, exposure to levels of stress, history of post-traumatic acute emotional stress, and personal history of chronic widespread pain prior to diagnosis, comorbidity, and pharmacological prescription during the year of diagnostic confirmation. The predictive capacity adjusted by Bootstrapping was 0.972 (95% CI: 0.955-0.986). CONCLUSIONS: The proposed model showed an excellent predictive capacity. The risk calculator designed from the predictive model allows health professionals to have a useful tool to identify subjects at risk of developing fibromyalgia.

Impacto de una intervención socioeducativa para mejorar la calidad de vida en pacientes con fibromialgia: un diseño cuasiexperimental / Impact of a socio-educational intervention to improve the quality of life of patients with fibromyalgia: A quasi-experimental design

OBJETIVO: Evaluar el impacto de una intervención socioeducativa para mejorar la calidad de vida en pacientes con fibromialgia. MÉTODO: De 132 elegibles, participaron 128 pacientes mayores de 18 años, con diagnóstico de fibromialgia (ACR 1990/2010), que no tuvieron problemas cognitivos o trastornos mentales en fase aguda y pertenecieron al área de influencia de los CAP participantes. Los pacientes recibieron durante 5 semanas una intervención para fortalecer la autogestión del dolor y mejorar la calidad de vida. Se estudiaron las variables sociodemográficas, satisfacción y calidad de vida (SF-36). Las mediciones pre-post se hicieron en los 128 participantes y el seguimiento a los 2 meses en 120 (8 no aceptaron ser contactados). RESULTADOS: Al comparar las puntuaciones pre-postintervención (test no paramétrico de Wilcoxon), se encontró que el 71,09% refirió mayor percepción de la calidad de vida en el dominio Salud mental y menor porcentaje de mejoría (28,91%) en el dominio Rol físico. Al comparar las puntuaciones pre-postseguimiento (prueba de Friedman), la media de percepción mejoró en todos los dominios y se mantuvo a los 2 meses de seguimiento (p < 0,001). Finalmente, la media de satisfacción con la intervención recibida fue de 90,55% (DE 9,86; mín.41, máx.100). CONCLUSIONES: Al valorar el impacto de la intervención, se observó una mejora en las puntuaciones post y seguimiento. Este hallazgo puede deberse a que la intervención fortalece en el paciente el autodominio de sus habilidades para controlar el dolor y mejorar la percepción de la calidad de vida

OBJECTIVE: To evaluate the impact of a socio-educational intervention to improve the quality of life of patients with fibromyalgia. METHOD: Out of 132 eligible candidates, 128 patients participated with a diagnosis of fibromyalgia (ACR 1990/2010), over 18 years of age, who did not have cognitive problems or mental disorders in acute phase and lived in the catchment area of the participating CAPs. The patients underwent intervention for 5 weeks to strengthen self-management of pain and improve quality of life. Socio-demographic variables, satisfaction and quality of life (SF-36) were studied. Pre-post measurements were made on the 128 participants and follow-up at 2 months on 120 (8 did not agree to be contacted). RESULTS: Comparing the pre-post-intervention scores (non-parametric Wilcoxon test), it was found that 71.09% reported a higher perception of quality of life in the Mental health domain and lower percentage of improvement (28.91%) in the Physical role domain. When comparing pre-post-follow-up scores (Friedman's test), mean perception improved in all domains and remained at 2-month follow-up (P<.001). Finally, the average satisfaction with the intervention received was 90.55% (SD 9.86; min.41, max.100). CONCLUSIONS: When assessing the impact of the intervention, there was an improvement in the post and follow-up scores. This finding is largely due to the fact that the intervention strengthens the patient's self-mastery of their abilities to control pain and improve their perception of quality of life

Impact of a socio-educational intervention to improve the quality of life of patients with fibromyalgia: A quasi-experimental design. / Impacto de una intervención socioeducativa para mejorar la calidad de vida en pacientes con fibromialgia: un diseño cuasiexperimental.

OBJECTIVE: To evaluate the impact of a socio-educational intervention to improve the quality of life of patients with fibromyalgia. METHOD: Out of 132 eligible candidates, 128 patients participated with a diagnosis of fibromyalgia (ACR 1990/2010), over 18 years of age, who did not have cognitive problems or mental disorders in acute phase and lived in the catchment area of the participating CAPs. The patients underwent intervention for 5 weeks to strengthen self-management of pain and improve quality of life. Socio-demographic variables, satisfaction and quality of life (SF-36) were studied. Pre-post measurements were made on the 128 participants and follow-up at 2 months on 120 (8 did not agree to be contacted). RESULTS: Comparing the pre-post-intervention scores (non-parametric Wilcoxon test), it was found that 71.09% reported a higher perception of quality of life in the Mental health domain and lower percentage of improvement (28.91%) in the Physical role domain. When comparing pre-post-follow-up scores (Friedman's test), mean perception improved in all domains and remained at 2-month follow-up (P<.001). Finally, the average satisfaction with the intervention received was 90.55% (SD 9.86; min. 41, max. 100). CONCLUSIONS: When assessing the impact of the intervention, there was an improvement in the post and follow-up scores. This finding is largely due to the fact that the intervention strengthens the patient's self-mastery of their abilities to control pain and improve their perception of quality of life.

[Validation of the Spanish version of the Primary Care Assessment Survey questionnaire]. / Validación de la versión en español del cuestionario PCAS para evaluar la atención primaria de salud.

OBJECTIVE: Adapt the Primary Care Assessment Survey (PCAS) questionnaire to the Spanish language and determine its validity and reliability in identifying strengths and weaknesses in primary health care (PHC). METHODS: Study of the adaptation and validation of a questionnaire-survey. The suitable sample selected was 244 users of PHC services. The users were over 18 years of age and had had at least two institutional visits prior to being included in the study. The variables used were access, continuity, comprehensiveness, integration, clinical interaction, interpersonal treatment, and trust. Participation was confirmed through analysis of the distribution of responses; participation and patterns of nonresponse; the construct, through exploratory factorial analysis, using principal component analysis and the varimax rotation; the criterion, through the Pearson product-moment correlation coefficient; and reliability using Cronbach's alfa and the intraclass correlation coefficient. RESULTS: The exploratory factorial analysis obtained 11 factors that explain 68.38% of the original variability. The criterion validity showed a sufficient correlation between the summary measure of the scale and the ad hoc variables Q33b (value of r x1x2 = 0.569; P = 0.01) and Q32 (value of r x1x2 = 0.600; P = 0.01). The scale obtained a coefficient of Cronbach's alfa of 0.94. The test-retest reliability (F [1 140] = 0.155 [P = 0.694]) demonstrated that the scale is stable over time. CONCLUSIONS: The psychometric properties of the adapted version of the PCAS questionnaire make it possible to state that it is a valid and reliable scale to evaluate primary care from a standpoint of ongoing care based on the physician-patient relationship.

Validación de la versión en español del cuestionario PCAS para evaluar la atención primaria de salud / Validation of the Spanish version of the Primary Care Assessment Survey questionnaire

OBJETIVO: Adaptar el cuestionario PCAS (del inglés Primary Care Assessment Survey) al idioma español y determinar su validez y su fiabilidad cuando se trata de identificar las debilidades y las fortalezas que se observan en la atención primaria de salud (APS). MÉTODOS: Estudio de adaptación y validación de un cuestionario-encuesta. Se seleccionó una muestra por conveniencia de 244 usuarios de servicios de APS, mayores de 18 años y con al menos dos visitas institucionales al momento de ser incluidos en el estudio. Se utilizaron las variables: accesibilidad, continuidad, integralidad, integración, interacción clínica, trato interpersonal y confianza. Se validaron la apariencia, mediante análisis de distribución de las respuestas, análisis de participación y patrones de no respuesta; el constructo, mediante análisis factorial exploratorio usando el método de componentes principales y rotación Varimax; el criterio, mediante el coeficiente de correlación de Pearson, y la fiabilidad, usando el alfa de Cronbach y el coeficiente de correlación intraclase. RESULTADOS: En el análisis factorial exploratorio se obtuvieron 11 factores que explicaron 68,38 por ciento de la variabilidad original. La validez de criterio mostró una correlación adecuada entre la medida resumen de la escala y las variables "ad hoc" Q33b (valor de r×1×2 = 0,569; P = 0,01) y Q32 (valor de r×1×2 = 0,600; P = 0,01). La escala obtuvo un coeficiente de alfa de Cronbach de 0,94. La fiabilidad test-retest (F [1,140] = 0,155 [P = 0,694]) demostró que la escala es estable en el tiempo. CONCLUSIONES: Las propiedades psicométricas de la versión adaptada del cuestionario PCAS permiten afirmar que se trata de una escala válida y fiable para evaluar la atención primaria desde un enfoque de continuidad asistencial basada en la relación médico-paciente.

OBJECTIVE: Adapt the Primary Care Assessment Survey (PCAS) questionnaire to the Spanish language and determine its validity and reliability in identifying strengths and weaknesses in primary health care (PHC). METHODS: Study of the adaptation and validation of a questionnaire-survey. The suitable sample selected was 244 users of PHC services. The users were over 18 years of age and had had at least two institutional visits prior to being included in the study. The variables used were access, continuity, comprehensiveness, integration, clinical interaction, interpersonal treatment, and trust. Participation was confirmed through analysis of the distribution of responses; participation and patterns of nonresponse; the construct, through exploratory factorial analysis, using principal component analysis and the varimax rotation; the criterion, through the Pearson product-moment correlation coefficient; and reliability using Cronbach's alfa and the intraclass correlation coefficient. RESULTS: The exploratory factorial analysis obtained 11 factors that explain 68.38 percent of the original variability. The criterion validity showed a sufficient correlation between the summary measure of the scale and the ad hoc variables Q33b (value of r x1x2 = 0.569; P = 0.01) and Q32 (value of r x1x2 = 0.600; P = 0.01). The scale obtained a coefficient of Cronbach's alfa of 0.94. The test-retest reliability (F [1 140] = 0.155 [P = 0.694]) demonstrated that the scale is stable over time. CONCLUSIONS: The psychometric properties of the adapted version of the PCAS questionnaire make it possible to state that it is a valid and reliable scale to evaluate primary care from a standpoint of ongoing care based on the physician-patient relationship.