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Table 1 Patient characteristics

From: Value of thyroid transcription factor (TTF)-1 for diagnosis and prognosis of patients with locally advanced or metastatic small cell lung cancer

  all TTF1 + TTF1 - p-value
Entire population 221 183/221 (82.8%) 38/221 (17.2%)  
Age (mean ± SD) 64.7 ± 10.2 64.0 ± 10.2 68.1 ± 9.6 0.023*
Female n (%) 76/221 (34.4) 63/183 (34.4%) 13/38 (34.2%) 1.000**
Male n (%) 145/221 (66.6) 120/183 (65.6%) 25/38 (65.8%)
Stage IIIA n (%) 21/221 (9.5) 16/183 (8.7%) 5/38 (13.2%)  
Stage IIIB n (%) 64/221 (29.0) 56/183 (30.6%) 8/38 (21.0%)  
Stage IV n (%) 136/221 (61.5) 111/183 (60.7%) 25/38 (65.8%) 0.412**
  1. Overview of the proportion of patients with TTF1-positive and TTF1-negative SCLC in the entire patient population and in the different stage groups.
  2. *Student’s T-Test.
  3. **Chi-Square Test.