Table 2 Lifestyle and dietary factors between case and control groups

Smoking

 Non-smoker

349 (71.7)

382 (76.1)

0.006

Ref.

 Current smoker

120 (24.6)

88 (17.5)

1.49 (1.09,2.04)

Physical activities

 Previous smoker

18 (3.7)

32 (6.4)

0.62 (0.34,1.11)

 < 120 min/week

323 (90.5)

301 (93.2)

0.353

Ref.

 120~ 180 min/week

30 (8.4)

18 (5.6)

1.55 (0.85,2.84)

 > 180 min/week

4 (1.1)

4 (1.2)

0.93 (0.23,3.76)

 Meat

Never

159 (32.6)

229 (45.6)

< 0.001

Ref.

1~ 2

215 (44.1)

209 (41.6)

1.48 (1.12,1.96)

3~ 4

81 (16.6)

51 (10.2)

2.29 (1.53,3.43)

≥5

32 (6.6)

13 (2.6)

3.55 (1.80,6.97)

 Viscera

Never

225 (46.2)

273 (54.4)

0.207

Ref.

1~ 2

223 (47.8)

206 (41.0)

1.37 (1.06,1.78)

3~ 4

22 (4.9)

16 (3.2)

1.82 (0.94,3.51)

≥5

5 (1.0)

7 (1.4)

0.87 (0.27,2.77)

 Fried food

Never

143 (29.4)

184 (36.7)

0.109

Ref.

1~ 2

265 (54.4)

247 (49.2)

1.38 (1.04,1.83)

3~ 4

66 (13.6)

58 (11.6)

1.46 (0.97,2.22)

≥5

13 (2.7)

13 (2.6)

1.29 (0.58,2.86)

 Vegetables

Never

13 (2.7)

12 (2.4)

0.550

Ref.

1~ 2

53 (10.9)

48 (9.6)

1.08 (0.49,2.41)

3~ 4

97 (19.9)

118 (23.5)

1.10 (0.73,1.68)

≥5

324 (66.5)

324 (64.5)

0.82 (0.60,1.12)

 Fruits

Never

42 (8.6)

35 (7.0)

0.601

Ref.

1~ 2

122 (25.1)

121 (24.1)

0.84 (0.50,1.41)

3~ 4

108 (22.2)

147 (29.3)

0.61 (0.37,1.02)

≥5

215 (44.1)

199 (39.6)

0.90 (0.55,1.47)

 Alcohol drink

< 1

434 (89.0)

447 (89.0)

0.971

Ref.

≥1

53 (10.9)

55 (11.0)

0.97 (0.67,1.48)

 Tea

< 1

326 (66.9)

340 (67.7)

0.791

Ref.

≥1

161 (33.1)

162 (32.3)

1.04 (0.80,1.35)