Name: Ruben Horst Duque
Type: MSc dissertation
Publication date: 25/03/2019
Advisor:

Name	Role
Maria Bernadete Renoldi de Oliveira Gavi	Advisor *

Examining board:

Name	Role
Maria Bernadete Renoldi de Oliveira Gavi	Advisor *
Maria Carmen Moldes Viana	Internal Examiner *
Valéria Valim Cristo	Internal Examiner *

Summary: Chronic pain is a serious public health problem not only in terms of human suffering, but also because of the large socioeconomic implications for society. Frequent association with mental disorders of different forms and intensities increases disability, decreases quality of life, and makes diagnosis and treatment challenging. The present study aimed to evaluate chronic musculoskeletal pain and the presence of mental disorders in patients who were followed at the pain clinic, comparing a control group, with the following specific objectives : a) to identify the prevalence and psychiatric profile of these patients, b) to characterize a sociodemographic profile of the patients in this sample and to describe their clinical profile. We selected 100 patients in a regular follow-up at the Musculoskeletal Pain Outpatient Clinic of the University Hospital of the Federal University of Espírito Santo (UFES) and compared them with 100 people from the control group from June 2016 to June 2018. The instruments used were the Mini International Neuropsychiatric Interview (MINI-PLUS) and structured questionnaire to collect sociodemographic data. Statistical analysis used chi-square test, Fisher's exact test being considered a significant p-value <or equal to 0.05 and t (parametric), Mann-Whitney test and Kolmogorov-Smirnov test. Multiple logistic regression was performed and the odds ratio (OR) was calculated estimating the 95% confidence interval. The results indicated fibromyalgia, low back pain and neck pain as the main clinical conditions related to pain. In the sample evaluated, the majority were women, of brown color, with lower level of education, lower salary range and high absenteeism index at work. 88% of patients with chronic pain had some psychiatric disorder compared to 48% in the control group. The most frequent were anxiety disorders with Panic attacks (44%), generalized anxiety (36%), mixed anxiety and depression disorder (33%), social phobia (30%), Agoraphobia (29%) and suicide risk (28%) and Major Depression (27%). As a conclusion, MINI-PLUS showed practicality and sensitivity in the identification of mental disorders in patients with chronic pain. In addition to being more prevalent, mental disorders correlate with a higher risk for chronic pain (OR = 7.94, 95% CI, 3.886-16.3).