Tuberculosis infection prevalence in 11 to 14 years old adolescents in Palencia
Reference of this article: Sacristán Martín AM, Casares Alonso I, Lage García MJ. Tuberculosis infection prevalence in 11 to 14 years old adolescents in Palencia. Rev Pediatr Aten Primaria. 2004;6:9-17.
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Introduction: the tuberculosis infection is still a pending subject for the Spanish Public
Health System, with bigger figures than we could expect for our level of development.
Objectives: to determine the prevalence of tuberculosis infection in young teenagers in
the health area of Palencia.
Patients and methods: 360 adolescents were studied between the ages of 11 to 14 in
the province of Palencia. Their clinic histories were revised and a short questionnaire was
carried out in order to detect risk factors that were unnoticed in the clinic history.
Results: the global prevalence of the tuberculosis infection was 2,5% but in patients
without risk factors it was only 0,87%. The only outstanding risk factor was the previous
contact with an affected adult with active tuberculosis. The contact with an adult having a chronic cough in the coalfield of Guardo may also be a factor of risk. The infected children
had a higher average age than the other children but they were not different in relation to
the other factors studied.
Conclusions: the prevalence of tuberculosis infection is less than 1%, for this reason the
active search for children without risk factors has been rejected. The necessity to increase
the control of the infection is considered in every respect.
Keywords● Adolescence ● Tuberculosis infection