Table 2.

Tuberculosis and lung cancer risk by histology among men in the ATBC Study, 1985–2005

Lung cancer casesIncidence rate, per 100,000 person-yearsHRa95% CI
All lung cancers
 No tuberculosis3,0587371.0
Squamous cell carcinoma
 No tuberculosis7671971.0
 No tuberculosis254661.0
Small cell carcinoma
 No tuberculosis4221091.0
Other cancer histology
 No tuberculosis4571181.0
Unknown cancer histology
 No tuberculosis1,1582881.0
  • aAll HRs were adjusted for age and baseline tobacco use using the log cig-years metric (see the Materials and Methods section).