Sitive PTB was four.6 . Among patients who coughed for two weeks or extra, six.0 (95 CI three.6 to 9.three ) had smear optimistic PTB. Similarly, amongst those who had cough for much less than two weeks, 1.9 (95 CI 0.four to five.3 ) had smear constructive PTB. The prevalence of smear good PTB among sufferers with cough la.Sitive PTB was 4.six . Amongst individuals who coughed for two weeks