Investigation of smoking and passive smoking status among tuberculosis patients in five districts of Shanghai.

Objective To investigate the status of current smoking and passive smoking among tuberculosis(TB) patients in five districts of shanghai,and to gather evidence for proactive tobacco cessation intervention.Methods All sputum-positive TB patients aged ≥14 years registered from January 1st 2008 through December 31th 2008 in five districts of shanghai were recruited for this study through convenience sampling.Results Among the 1 028 recruited TB patients,1 019 patients were available.The rate of daily smoking among 1 019 TB patients was 30.3%(male 44.3%,female 0.9%).The age-standardized current smoking rate were 58.0% for male and 1.3% for female.The age-standardized smoking rate was 78.7% for male and 3.5% for female.85.5% of current smokers were severe or medium smokers.61.9% of current smokers declared that they were planning to quit smoking in one month,while 19.8% of them reported that they were not interested in quitting.The prevalence of current smoking was higher in the following sub-groups:male,age between 40 and 59 years,junior and senior high school education,married,low-level income and registered permanent residence of Shanghai.Passive smoking rate among the investigated TB patients was 55.8% with no significant difference between male and female(male 56.3%,female 55.3%).Conclusion The smoking rate and age-standardized current smoking rate of TB patient's are significantly higher than the rates in general population.