Abstract:
Tuberculosis (TB) is a chronic infectious disease caused byMycobacterium tuberculosis.
Tuberculosis is the highest cause of death in the world and a disease experienced by many
people. This research discusses the application of the CHAID method to classify someone
diagnosed as positive for TB. The data used was obtained from patients diagnosed with
TB at Arifin Achmad Regional Hospital, Riau Province in 2020-2022 with the variables
used being age, gender, patients experiencing shortness of breath, coughing, fever, chest
pain and work status. The results show that the accuracy value,sensitivity, specificity, and
balanced accuracy using the CHAID method with values of 81.82%, 96.92%, 0%, and
48.46%. The most influential variable in classifying someone who is positive for TB using
the CHAID method is the cough variable.
