[Epidemiology of Lyme disease in a healthcare area in north-west Spain].

Objective: To evaluate the influence of some risk factors on the incidence rate of Lyme disease and the main clinical manifestations.

Methods: A retrospective study of Lyme disease (2006-2013) was performed in north-west Spain; we included only patients who fulfilled the epidemiological surveillance criteria defined by the Centers for Disease Control and Prevention.

Results: The incidence rate varied between 2.64 and 11.61/100,000 inhabitants/year. Significant differences were found in relation to habitat, age and area of residence. Patients showed neurological (67.59%), dermatological (47.22%), rheumatological (15.74%) and cardiac (13.88%) manifestations, alone or combined.

Conclusions: Due to the increase of the disease in north-west Spain and the differences observed between the different areas, epidemiological studies are needed that increase the index of diagnostic suspicion and lead to the implementation of effective prevention measures.