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Factors associated with pain in individuals infected by human T-cell lymphotropic virus type 1 (HTLV-1).

Factors associated with pain in individuals infected by human T-cell lymphotropic virus type 1 (HTLV-1).
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Santos DN, Santos KO, Paixão AB, Andrade RC, Costa DT, S-Martin DL, Sá KN, Baptista AF,


Santos DN, Santos KO, Paixão AB, Andrade RC, Costa DT, S-Martin DL, Sá KN, Baptista AF, (click to view)

Santos DN, Santos KO, Paixão AB, Andrade RC, Costa DT, S-Martin DL, Sá KN, Baptista AF,

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The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2016 12 20() pii 10.1016/j.bjid.2016.11.008

Abstract
INTRODUCTION
Despite the high prevalence of chronic pain in individuals infected with HTLV-1, predictive and protective factors for its development are still unclear.

OBJECTIVE
To identify factors associated with chronic pain in individuals with HTLV-1.

METHODS
This cross-sectional study was conducted in a reference center for treatment of patients infected with HTLV-1 in Salvador, Bahia, Brazil. The study included individuals infected with HTLV-1, over 18 years, and excluded those with difficulty to respond the pain protocol. Data on sociodemographic, health behavior, and clinical characteristics were collected in a standardized way. The prevalence ratio (PR) of pain is described and the factors independently associated with the presence of pain were assessed by multiple logistic regression.

RESULTS
sample total of 142 individuals were entered the study, mostly female (62.7%), aged 20-64 years (73.2%), married (61.3%), with less than eight years of education (54.2%), and with a steady income (79.6%). Multivariate analysis showed that being symptomatic for HTLV-1 – sensory manifestations, erectile dysfunction, overactive bladder, and/or HAM/TSP (PR=1.21, 95% CI: 1.05 to 1.38), self-medication (PR=1.29, 95% CI: 1.08-1.53), physiotherapy (PR=1.15, 95% CI: 1.02-1.28), and depression (PR=1.14, 95% CI: 1.01-1.29) were associated with an increased likelihood of presenting pain. On the other hand, physical activity (PR=0.79, 95% CI: 0.67-0.93) and religious practice (PR=0.83, 95% CI: 0.72-0.95) were associated with a decreased likelihood of having pain.

CONCLUSION
The use of self-medication, physiotherapy and the presence of depression are independently associated with neurological symptoms in HTLV-1 infected patients. Religious practice and physical activity are both protective for the development of pain.

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