Skip to main content

Table 1 Distribution of selected variables among cases and controls

From: Dietary patterns, BCMO1 polymorphisms, and primary lung cancer risk in a Han Chinese population: a case-control study in Southeast China

Variables Case (%) Control (%) P value OR (95% CI)
(n = 1166) (n = 1179)
Age (yrs.) mean ± SD 58.28 ± 11.28 59.19 ± 10.78 0.149  
  < 50 223(19.1) 264(22.4)   1
 51–69 739(63.4) 716(60.7)   1.222 (0.995–1.501)
  ≥ 70 204(17.5) 199(16.9)   1.214 (0.932–1.581)
Income(yuan/month)
  ≤ 3500 797 (67.6) 836 (71.7) 0.031 1
  > 3500 382 (32.4) 330 (28.3)   0.824 (0.690–0.982)
Gender    0.542  
 Male 842 (72.2) 838 (71.1)   1
 Female 324 (27.8) 341 (28.9)   0.946 (0.790–1.132)
Education    < 0.001  
 Illiteracy 185(15.9) 133(11.3)   1
 Middle school and below 686(58.8) 647(54.9)   0.762 (0.595–0.976)
 High school and above 295(25.3) 399(33.8)   0.532 (0.406–0.696)
Marital status    0.15  
 Married 1099(94.3) 1094(92.8)   1
 Single 67(5.7) 85(7.2)   0.785(0.564–1.092)
Occupation    < 0.001  
 Worker 266(22.8) 297(25.2)   1
 Farmer 333(28.6) 245(20.8)   1.518 (1.201–1.917)
 Enterprises and employees 321(27.5) 433(36.7)   0.828 (0.665–1.031)
 Cook 18(1.5) 9(0.8)   2.233 (0.986–5.055)
 Others 228(19.6) 195(16.5)   1.305 (1.014–1.681)
Family history of lung cancer    0.004  
 No 942(80.8) 1005(85.2)   1
 Yes 224(19.2) 174(14.6)   1.373(1.105–1.706)
History of lung diseases    < 0.001  
 No 1009(86.5) 1080(91.6)   1
 Yes 157(13.5) 99(8.4)   1.697(1.301–2.214)
BMI (kg/m2)    < 0.001  
 18.5–23.9 720(61.9) 638(54.5)   1
  < 18.5 133(11.4) 51(4.4)   2.311(1.645–3.246)
  ≥ 24 311(26.7) 481(41.1)   0.573(0.479–0.685)
Tea    0.729  
 No 578(49.6) 576(48.9)   1
 Yes 588(50.4) 603(51.1)   0.972(0.826–1.143)
Alcohol    0.353  
 No 884(75.8) 913(77.4)   1
 Yes 282(24.2) 266(22.6)   1.095(0.904–1.326)
Smoking    < 0.001  
 No 427(36.6) 691(58.6)   1
 Yes 739(63.4) 488(41.4)   2.451(2.075–2.894)
ETS    < 0.001  
 No 348(29.8) 647(54.9)   1
 Yes 818(70.2) 532(45.1)   2.859(2.412–3.388)
Histology
 Adenocarcinoma 551(47.3)    
 Squamous cell carcinoma 324(27.8)    
 Others 290(24.9)