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Table 4 Associations between dietary patterns by quartile (Q) and lung cancer risk by smoking status

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

Dietary pattern Never smokers Smokers
Cases/controls Adjusted OR*(95% CI) Cases/controls Adjusted OR*(95% CI)
High quality protein
 Q1(low) 104/172 1 173/122 1
 Q2 102/177 1.085 (0.753–1.563) 189/119 1.226 (0.865–1.737)
 Q3 108/169 1.244 (0.864–1.790) 184/126 1.151 (0.813–1.631)
 Q4(high) 113/173 1.397 (0.972–2.008) 193/121 1.310 (0.924–1.857)
 P for trend   0.053   0.187
Fruits and vegetables
 Q1(low) 239/154 1 364/140 1
 Q2 88/165 0.365 (0.258–0.517) 173/130 0.529 (0.383–0.730)
 Q3 53/184 0.180 (0.121–0.266) 123/112 0.410 (0.289–0.580)
 Q4(high) 47/188 0.159 (0.106–0.239) 79/106 0.270 (0.184–0.395)
 P for trend   < 0.001   < 0.001
Cereals/wheat and meat
 Q1(low) 85/189 1 208/105 1
 Q2 82/167 1.136 (0.774–1.666) 229/128 0.827 (0.588–1.164)
 Q3 120/168 1.351 (0.935–1.951) 161/128 0.556 (0.392–0.794)
 Q4(high) 137/167 1.517 (1.053–2.184) 141/127 0.463 (0.322–0.666)
 P for trend   0.016   < 0.001
Frugal pattern
 Q1(low) 117/163 1 147/131 1
 Q2 94/176 0.661 (0.458–0.956) 161/120 1.142 (0.799–1.633)
 Q3 90/177 0.620(0.428–0.898) 182/118 1.278 (0.895–1.824)
 Q4(high) 126/175 0.865 (0.607–1.232) 249/119 1.713 (1.215–2.416)
 P for trend   0.436   0.002
  1. *adjusted by incomes, occupation, education, family history of lung cancer, history of lung diseases, ETS and BMI