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Table 1 Demographics of patients with lung cancer and controls

From: Polymorphism in lncRNA AC016683.6 and its interaction with smoking exposure on the susceptibility of lung cancer

Variable Case (%) (434) Control (%) (593) P value
Age, year (mean ± SD) 57.97 ± 11.85 56.67 ± 15.88 0.134
Age, (year)
 ≤ 57 190 (43.8) 264 (44.5) 0.813
 > 57 244 (56.2) 329 (55.5)  
Gender
 Male 111 (25.6) 180 (30.4) 0.093
 Female 323 (74.4) 413 (69.6)  
Smoking status
 Never 338 (77.9) 475 (80.1) 0.044a
 Ever 96 (22.1) 118 (19.9)  
Clinical stage
 I, II 86 (19.8)   
 III 198 (45.6)   
 IV 59 (13.6)   
 Other 91 (21.0)   
Histology
 AD 233 (53.6)   
 SQ 89 (20.5)   
 SCLC 61 (14.1)   
 Other 51 (11.8)   
  1. AD adenocarcinoma, SQ squamous cell carcinoma, SCLC small cell lung cancer
  2. a P value was adjusted for age, gender and smoking