The authors pay their deepest thanks to all the study participants for giving valuable time and useful data for the study; field enumerators for their hard work for data collection; and the programme personnel at Trishal upazila for their cooperation. Special thanks to Associate Professor Dr. Asif Mujtaba Mahmud, Respiratory Medicine Department, Sir Salimullah Medical College, Dhaka; Associate Professor Dr. NK Sharma, Radiology and Sonology Department, Mymensingh Medical College, Mymensingh and Professor Dr. Nasiruddin Miah, Radiology and Imaging Department, National Institute of Cancer Research, Dhaka for examination of chest X-ray films for diagnosis of PTB among the study participants. The authors also thank the laboratory technicians at BRAC field.
