Javier Rivera

Development of a self-reporting tool to obtain a Combined Index of Severity of Fibromyalgia (ICAF*)

BackgroundFibromyalgia is a syndrome with heterogeneous symptoms. The evaluation in the clinical setting usually fails to cover the complexity of the syndrome. This study aims to determine how different aspects of fibromyalgia are inter-related when measured by means of a self-reporting tool. The objective is to develop a more complete evaluation model adjusted to the complexity and multi-dimensional nature of the syndrome.MethodsApplication was made of the Fibromyalgia Impact Questionnaire, the Hospital Anxiety and Depression Scale, the Brief Pain Inventory, the Fatigue Assessment Scale, the Health Assessment Questionnaire, the General Health Questionnaire (GHQ-28), the Chronic Pain Coping Inventory, the Arthritis Self-efficacy Scale and the Sleep Quality Scale. An assessment was made, on the basis of clinical interviews, case histories and specific tests, of the patient sociodemographic data, comorbidity, physical exploration and other clinical indexes. An exploratory factor analysis was made, with comparisons of the clinical index scores in extreme groups of patients.ResultsThe ICAF composed of 59 items was obtained, offering four factors that explain 64% of the variance, and referred to as Emotional Factor (33.7%), Physical-Activity (15%), Active Coping (9%) and Passive Coping (6.3%). A t-test between the extreme scores of these factors in the 301 patients revealed statistically significant differences in occupational status, medically unexplained syndromes, number of tender points, the six-minutes walk test, comorbidity and health care costs.ConclusionsThis study offers a tool allowing more complete and rapid evaluation of patients with fibromyalgia. The test intrinsically evaluates the emotional aspects: anxiety and depression, and their impact upon social aspects. It also evaluates patient functional capacity, fatigue, sleep quality, pain, and the way in which the patient copes with the disease. This is achieved by means of a self-assessment questionnaire based on elements from well known tests.

Uso del cuestionario Hospital Anxiety and Depression Scale (HADS) para evaluar la ansiedad y la depresión en pacientes con fibromialgia

INTRODUCTION The HADS is a questionnaire widely used to evaluate anxiety and depression, although its use in fibromyalgia patients has not yet been reported. The aim of this study is to know the usefulness of the HADS to evaluate the emotional aspects related to fibromyalgia patients. METHODS This paper studies a sample of 301 fibromyalgia patients. The scientific goodness of the questionnaire is analyzed, and its structure is compared with other models by confirmatory factor analysis. Two external severity indices are used, number of tender points and patients employment situation. RESULTS The results show higher levels of anxiety than in other disorders, adequate reliability and a three-factor model with better statistical fit. Nevertheless, this structure was not shown more useful than the two-factor structure for the external criteria studied. CONCLUSIONS The HADS has been shown to be a useful tool for exploring the presence of anxiety and depression in fibromyalgia patients and that the number of tender points does not seem to be related to the severity of the psychological aspects measured by the HADS in our sample, while there does seem to be a correspondence between psychological condition and absence from work.

A confirmatory study of the Combined Index of Severity of Fibromyalgia (ICAF*): factorial structure, reliability and sensitivity to change

BackgroundFibromyalgia (FM) is a complex syndrome that affects many aspects of the patients life and it is very difficult to evaluate in clinical practice. A recent study has developed the Combined Index of Severity of Fibromyalgia (ICAF), an instrument that evaluates diverse aspects of FM and offers five indices: emotional, physical, active coping, passive coping and total. The objective of this study is to confirm the structure of the ICAF, check its test-retest reliability, assess its sensitivity to change, and compare the results obtained in a sample of patients with fibromyalgia with another sample of healthy controls.MethodsA total of 232 patients took part in the study, 228 women and 4 men, with a mean age of 47.73 years of age (SD = 8.61) and a time of disease evolution since diagnosis of 4.28 years (SD = 4.03). The patients from the FM group completed the ICAF. Between one and two weeks later, they again attended the clinic and complete the 59 items on the ICAF (retest) and immediately afterwards they began treatment (according to daily clinical practice criteria). A sample of healthy subjects was also studied as a control group: 110 people were included (106 women and 4 men) with a mean age of 46.01 years of age (SD = 9.35). The study was conducted in Spain.ResultsThe results obtained suggest that the four-factor model obtained in the previous study adequately fits the data obtained in this study. The test-retest reliability and internal consistency were all significant and show a high degree of correlation for all the factors as well as in overall score. With the exception of the passive coping factor, all the other scores, including the overall score, were sensitive to change after the therapeutic intervention. The ICAF scores of the patients with fibromyalgia compared with those of the control group were markedly different.ConclusionsThe findings suggest that the ICAF is a valid, reliable, sensitive to change instrument with the added advantage that it offers some additional domains (factors) that provide very valuable information regarding the most delicate aspects of the patient, which must be addressed at the time of treatment in daily clinical practice.

Internet versus face-to-face group cognitive-behavioral therapy for fibromyalgia: A randomized control trial.

BACKGROUND The aim of this study was to explore the effectiveness of Internet-delivered cognitive-behavioral therapy (iCBT) in treating fibromyalgia (FM) compared with an identical protocol using conventional group face-to-face CBT. METHODS Sixty participants were assigned to either (a) the waiting list group, (b) the CBT group, or (c) the iCBT group. The groups were assessed at baseline, after 10 weeks of treatment, and at 3-, 6-, and 12-month follow-ups. The primary outcome measured was the impact of FM on daily functioning, as measured by the Fibromyalgia Impact Questionnaire (FIQ). The secondary outcomes were psychological distress, depression, and cognitive variables, including self-efficacy, catastrophizing, and coping strategies. RESULTS In post-treatment, only the CBT group showed improvement in the primary outcome. The CBT and iCBT groups both demonstrated improvement in psychological distress, depression, catastrophizing, and utilizing relaxation as a coping strategy. The iCBT group showed an improvement in self-efficacy that was not obtained in the CBT group. CBT and iCBT were dissimilar in efficacy at follow-up. The iCBT group members improved their post-treatment scores at their 6- and 12-month follow-ups. At the 12-month follow-up, the iCBT group showed improvement over their primary outcome and catastrophizing post-treatment scores. A similar effect of CBT was expected, but the positive results observed at the post-treatment assessment were not maintained at follow-up. CONCLUSIONS The results suggest that some factors, such as self-efficacy or catastrophizing, could be enhanced by iCBT. Specific characteristics of iCBT may potentiate the social support needed to improve treatment adherence.

Evaluación de la capacidad funcional en fibromialgia. Análisis comparativode la validez de constructo de tres escalas

OBJECTIVE To compare the construct validity of three functional capacity questionnaires in patients with fibromyalgia. PATIENTS AND METHODS Transversal multicentric study of 301 patients from fifteen rheumatology outpatient clinics in Spain. Scores of Health Assessment Questionnaire (HAQ), Fibromyalgia Health Assessment Questionnaire (FHAQ) and the physical function scale of the Fibromyalgia Impact Questionnaire (PF-FIQ) were compared with extreme groups of patients defined by four external indirect measures: 6Min Walk Test, a modified Borg Fatigue Scale, Lumbar Spine Flexion Test and Patient Global Passive Mobility Assessment. Standardized differences were determined and correlation coefficients were calculated between the three questionnaires scores. RESULTS All three questionnaires showed good construct validity, but the results obtained with the PF-FIQ were poorer. Correlations between HAQ and FHAQ were very high (0.92), but correlations between these two questionnaires and PF-FIQ were only moderate (0.59). CONCLUSIONS HAQ and FHAQ are more valid measures of functional capacity than the PF-FIQ. HAQ could be substituted by FHAQ in some settings because of its shorter format (only 8 items).

Fibromyalgia Health Assessment Questionnaire: evaluación de la sensibilidad al cambio

OBJECTIVE To analyze the responsiveness of the Fibromyalgia Health Assessment Questionnaire (FHAQ) in a group of patients with fibromyalgia (FM). METHODS Observational, prospective and longitudinal study related to the project ICAF was taken part in 15 Spanish centers. 232 patients were included and diagnosed of FM: 98.3% were women, the mean age was 47 years old, they were analyzed at a basal visit and 3 months visit, afterwards an appropriated treatment was prescribed. The statistical analysis was performed including: mean comparison, mean standardized response (RME), basal standard media (DE), intraclass correlation coefficient (R), standard error of the mean (EEM), minimal detectable difference (DMD) and percentage change in real. RESULTS The difference in mean comparison of the FHAQ in the baseline visit and the 3 months visit was of 0.098 (95% CI: 0.034–0.16), with a P<.003. Nevertheless the RME was 0.21, a slightly change, the DE=0.57, R=0.81, EEM=0.25, and the DMD=0.69. The percentage change in real was 17% (39 patients). But the sense of the change was positive in 28 cases (less punctuation in the 3 months visit) and negative in other 11 cases (higher punctuation in the 3 months visit). CONCLUSIONS The punctuation in the 3 months visit was significant better than the basal, but the results of this study do not let it to consider that the FHAQ have enough change susceptibility to recommend it in longitudinal studies. The well knowing fact, some patients can become worse with the treatment prescribed would be to the detriment of the FHAQ psychometric value.

Assessment of functional capacity in fibromyalgia. Comparative analysis of construct validity of three functional scales

Abstract Objective To compare the construct validity of three functional capacity questionnaires in patients with fibromyalgia. Patients and methods Transversal multicentric study of 301 patients from fifteen rheumatology outpatient clinics in Spain. Scores of Health Assessment Questionnaire (HAQ), Fibromyalgia Health Assessment Questionnaire (FHAQ) and the physical function scale of the Fibromyalgia Impact Questionnaire (PF-FIQ) were compared with extreme groups of patients defined by four external indirect measures: 6Min Walk Test, a modified Borg Fatigue Scale, Lumbar Spine Flexion Test and Patient Global Passive Mobility Assessment. Standardized differences were determined and correlation coefficients were calculated between the three questionnaires scores. Results All three questionnaires showed good construct validity, but the results obtained with the PF-FIQ were poorer. Correlations between HAQ and FHAQ were very high (0.92), but correlations between these two questionnaires and PF-FIQ were only moderate (0.59). Conclusions HAQ and FHAQ are more valid measures of functional capacity than the PF-FIQ. HAQ could be substituted by FHAQ in some settings because of its shorter format (only 8 items).

Estrategias de prescripción de fármacos en el tratamiento de pacientes con fibromialgia

OBJECTIVE To analyze prescription strategies followed by rheumatologist specialized in FM treatment. METHODS A prospective, multicentric, 3-month follow-up study with two visits. The drug treatment was started following usual clinical practice conditions. Prescription of benzodiazepines, hypnotics, anticonvulsants and antidepressants were those mainly studied. Clinical evaluation was performed by the ICAF (Combined index of affection in patients with fibromyalgia) questionnaire. The most frequent strategies and their size effect were calculated. RESULTS A total of 232 patients attending 15 rheumatology centers were included. The introduction of an anticonvulsant or an antidepressant were the most common drug strategies followed in 17.7% and 14.7% of patients, respectively. Both strategies produced a statistically significant clinical improvement. The most effective strategy (with an effect size of nearly 1) was the introduction of both drugs (6.5% patients), which increased the antidepressants effect size in 50% and 100% for anticonvulsants. The strategy of no change in the number of drug prescriptions was the most frequent (35.8% patients) but no significant clinical improvement was found in these patients. Some other strategies were very uncommon and have not been analyzed in this study. CONCLUSION The introduction of anticonvulsants or antidepressants, in an isolated or combined form, produces a significant clinical improvement in FM patients. The most effective drug strategy is the introduction of both drugs at the same time. The least effective strategy is not to change the number of drug prescriptions.

Struggling With Adversities of Life: The Role of Forgiveness in Patients Suffering from Fibromyalgia

Objectives: We compared the magnitude and direction of associations between forgiveness and pain, mental and physical health, quality of life, and anger in a sample of fibromyalgia syndrome (FM) participants and healthy controls. In addition, we compared FM and controls on mean levels of these variables. Materials and Methods: A total of 173 individuals with FM and 81 controls completed this study. FM participants and controls were residents of Germany recruited with the support of the German Fibromyalgia Patient Association and several self-help groups. FM participants and controls were about 53 years of age, mostly married (70%), Christians (81%), with levels of education ranging from 9 to 13+ years. All participants completed assessments of forgiveness, pain, health, quality of life, and anger. Results: Analyses revealed that FM participants reported higher pain and anger and poorer health and quality of life. FM participants also reported lower levels of both forgiveness of self and others. Size and direction of associations of forgiveness with pain, health, quality of life, and anger in were not significantly different between healthy individuals and individuals with FM. Discussion: Forgiveness of self and others is beneficially associated with pain, health, quality of life, and anger in FM participants at levels that are of similar size and direction as in healthy controls. However, FM participants manifest lower levels of forgiveness of self and others. Therapeutic promotion of forgiveness as a psychosocial coping strategy may help patients with FM to better manage psychological and physical symptoms, thereby enhancing well-being.

El cuestionario general de salud (GHQ-28) en pacientes con fibromialgia: propiedades psicométricas y adecuaciónThe general health questionnaire (GHQ-28) in patients with fibromyalgia: Psychometric characteristics and adequacy

Fibromyalgia is a syndrome that involves multiple symptoms, including widespread musculoskeletal pain, emotional and cognitive problems, and adjustment difficulties. The General Health Questionnaire (GHQ-28) has been widely used, even if little data exist on its use in patients with fibromyalgia. A sample of 301 patients with fibromyalgia was studied, analyzing the goodness of the questionnaire andX its structure. High anxiety levels (= 1.5), social dysfunction (= 1.56) and somatic symptoms of GHQ-28 (= 1.67) were obtained. The reliability is adequate (Cronbachs α = .94) and the factor structure of four factors analyzed conforms to that proposed by the authors of the questionnaire. The conclusion is that GHQ-28 has been useful to explore the psychological symptoms in patients with fibromyalgia.