Risk factors for airflow obstruction in total subjects and in subjects with prior pulmonary tuberculosis.

Data are odds ratio (95% confidence interval) and p values.In subjects with normal chest x-rays and with prior pulmonary tuberculosis, there was no patient with FEV1/FVC % 1% FVC: forced vital capacity; FEV1: forced expiratory volume in 1 second; OR: odds ratio; TB: tuberculosis.*Multivariate logistic regression with age, sex, asthma, smoking amount and prior pulmonary TB.**Multivariate logistic regression with age, sex, asthma, smoking amount and inactive TB lesion on chest x-ray.Risk factors for airflow obstruction in total subjects and in subjects with prior pulmonary tuberculosis.