Epidemiology of tuberculosis in Sabzevar district during 2009-2013

Tuberculosis(TB) is the second leading infectious disease cause of death worldwide. The World Health Organization estimates that close to one quarter of the world's population are infected with Mycobacterium tuberculosis. The study was carried out to pay more attention and appropriate control of the disease due to its re-outbreak in recent years in Sabzevar district.

This study is recruited 150 patients with tuberculosis who were treated between 2009 and 2013 in health centers. Data of patients were included demographic parameter, pulmonary tuberculosis status (positive or negative smear) and locations. Data analysis was performed using Chi-Square test by SPSS version 22.

A population-based survey of the prevalence was 0.94 person per 10000. Mean age of patients was 53± 20. Among these patients, 56.7%(85) had pulmonary TB and 43.3% had non pulmonary TB. There was a statistically significant difference in types of TB (pulmonary and non- pulmonary) when considering with sex and age(P<0.05). Pleural tuberculosis was the most involved organ in non-pulmonary patients. There was no significant difference in types of TB with other varieties such as residence and exposure(P>0.05)..

According to the results, non-pulmonary tuberculosis was higher compared to other types (43.3 %) and higher than global and national rates. In addition, presence of 60% positive smears indicated that health control policies were not appropriately performed. To control the disease, a more accurate way of case-finding, preventive activities, well-time treatment, and relevant follow up are recommended.