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Table 1 General characteristics of the study subjects (N = 1, 404)

From: Work-relatedness of lung cancer by smoking and histologic type in Korea

Characteristics Men(n = 973) Women(n = 431) p value
  n % n %  
Age      p < 0.001*
 20 ~ 29 3 0.3 3 0.7  
 30 ~ 39 7 0.7 8 1.9  
 40 ~ 49 52 5.3 39 9.0  
 50 ~ 59 186 19.1 118 27.4  
 60 ~ 69 356 36.6 132 30.6  
 ≥70 369 37.9 131 30.4  
Smoking history      p < 0.001**
 Non-smoker 80 8.2 374 86.8  
 Ex-smoker 424 43.6 28 6.5  
 Current smoker 469 48.2 29 6.7  
Histologic type      p < 0.001**
 SCLC 130 13.3 17 3.9  
 NSCLC      
 ADC 309 31.8 277 64.3  
 SCC 273 28.1 24 5.6  
 LCC 30 3.1 10 2.3  
 Others 231 23.7 103 23.9  
Work-relatedness      p < 0.001**
 Definite 31 3.2 0 0.0  
 Probable 95 9.8 7 1.6  
 Possible 296 30.4 44 10.2  
 Suspicious 194 19.9 63 14.6  
 No relation 354 36.4 317 73.6  
 Undetermined 3 0.3 0 0.0  
  1. SCLC: Small cell lung cancer.
  2. NSCLC: Non-small cell lung cancer.
  3. ADC: Adenocarcinoma.
  4. SCC: Squamous cell carcinoma.
  5. LCC: Large cell carcinoma.
  6. bronchogenic carcinoma and undetermined.
  7. *Fisher’s exact test.
  8. **χ2 test.
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