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E. Rosenbaum



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    MA 18 - Global Tobacco Control and Epidemiology II (ID 676)

    • Event: WCLC 2017
    • Type: Mini Oral
    • Track: Epidemiology/Primary Prevention/Tobacco Control and Cessation
    • Presentations: 1
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      MA 18.11 - High Incidence of Lung Cancer in Early Stage TCC Patients (ID 9292)

      16:55 - 17:00  |  Author(s): E. Rosenbaum

      • Abstract
      • Presentation
      • Slides

      Background:
      In recent years, clinical studies on screening for lung cancer have demonstrated an initial lung cancer detection rate of 0.8-2.2%, with a total of 2.4-4.7% in 34-78 months of follow up. The National Lung Screening Trial (NLST), which compared screening by LDCT to annual chest X-ray, showed a 20% decrease in mortality in the screened population. Transitional cell carcinoma of the bladder (TCC) has a high survival rate, and has similar risk factors to lung cancer. Thus, TCC patients may stand to benefit from lung cancer screening.

      Method:
      The SEER (Statistics, Epidemiology and End Results) database was used to determine the incidence, Person-years at risk and the average time to diagnosis of lung cancer in patients with localized TCC of the bladder (American Joint Committee on cancer, 6[th] ed., stages 0-1) in years 2000-2013. Cumulative Incidence rates were calculated and stratified by age, sex and county level smoking data.

      Result:
      Based on 88,564 patients with localized TCC (F:M ratio 1:3.3), the 5 year incidence of lung cancer was 3.16%, and 10 year incidence was 5.85%. among patients over 40 from counties with a high percentage of smokers, the 5 year incidence of lung cancer was 3.46%, and 10 year incidence was 6.64%. The median time until diagnosis of lung cancer was 3.89 years for men and 3.16 years for women for ages 60-79, the age group with the highest incidence. Figure 1



      Conclusion:
      Incidence of lung cancer is high in localized TCC patients and comparable to results seen in the high risk groups currently being screened. Early stage TCC patients may therefore stand to gain from lung cancer screening, and should be considered as potential screening candidates.

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