History of TB Contact as Risk Factor of Positive Tuberculin Test in Children ( Case Study in Semarang Regency )

Abstract

Background. Tuberculosis (TB) is a chronic infectious disease and a public health problem. Two millions died because of this disease annually. Children are one of the highest risk for TB infection. Objective. To define the history of TB contact as a risk factor of TB infection in children. Methods. A case control study was done in elementary school children aged 8 – 12 years old in 3 areas of community health center in Semarang, 29 were mantoux positive and 29 control. To define the history of TB contact as a risk factor of positive tuberculin test in children, bivariate, and multivariate analysis were done. Result. The history of TB contact as a risk factor of positive tuberculin test in children has OR 3.759 (CI 1.059 – 13.342), p = 0.040 and the history of children sick has OR 10,23 (1.138 – 91.930), p = 0,038. Probability for positive tuberculin test after considering overall variables is 90,7%. Conclusion. History of TB contact and the history of children sick are as risk factor of positive tuberculin test in children. Keywords: History of TB contact, tuberculin test, school children