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|
Variable
|
Cases
|
Controls
|
p
a
|
|---|
| |
n (%)
|
n (%)
| |
|---|
|
Gender
| | |
0.623
|
|
Male
|
260 (72.4 %)
|
269 (70.8 %)
| |
|
Female
|
99 (27.6 %)
|
111 (29.2 %)
| |
|
Ethnic group
| | |
0.001
|
|
Han
|
270 (75.2 %)
|
322 (84.7 %)
| |
|
Minority
|
89 (24.8 %)
|
58 (15.3 %)
| |
|
Education level
| | |
<0.001
|
|
None/primary
|
183 (51.0 %)
|
136 (35.8 %)
| |
|
Secondary
|
140 (39.0 %)
|
191 (50.3 %)
| |
|
Tertiary
|
36 (10.0 %)
|
53 (13.9 %)
| |
|
Annual income (yuanb)
| | |
0.112
|
|
<5000
|
130 (36.2 %)
|
132 (34.7 %)
| |
|
5000–20,000
|
177 (49.3 %)
|
171 (45.0 %)
| |
|
>20,000
|
52 (14.5 %)
|
77 (20.3 %)
| |
|
Smoking status
| | |
0.188
|
|
Never
|
164 (45.7 %)
|
192 (50.5 %)
| |
|
Ever
|
195 (54.3 %)
|
188 (49.5 %)
| |
|
Alcohol drinking
| | |
0.216
|
|
Never/seldom
|
193 (53.8 %)
|
187 (49.2 %)
| |
|
Often
|
166 (46.2 %)
|
193 (50.8 %)
| |
|
Family history of cancer in first-degree relatives
| | |
<0.001
|
|
No
|
306 (85.2 %)
|
356 (93.7 %)
| |
|
Yes
|
53 (14.8 %)
|
24 (6.3 %)
| |
|
Age at interview (years): mean (SD)
|
61.4 (11.0)
|
60.6 (11.8)
|
0.338
|
|
BMI (5 years ago, kg/m2): mean (SD)
|
24.3 (3.8)
|
24.0 (3.6)
|
0.181
|
|
Vegetable consumption (g/day): mean (SD)
|
677.8 (542.6)
|
874.3 (621.8)
|
<0.001
|
|
Fruit consumption (g/day): mean (SD)
|
342.0 (410.6)
|
463.1 (480.6)
|
<0.001
|
|
Meat consumption (g/day): mean (SD)
|
232.1 (263.1)
|
242.3 (264.1)
|
0.601
|
|
Energy intake (kcal/day): mean (SD)
|
4310 (2681)
|
4709 (2716)
|
0.047
|
|
Total white rice (g/day): mean (SD)
|
137.8 (188.0)
|
208.7 (208.9)
|
<0.001
|
|
Cooked white rice (g/day): mean (SD)
|
79.5 (133.1)
|
111.2 (132.9)
|
0.001
|
|
Porridge (g/day): mean (SD)
|
53.0 (83.9)
|
95.2 (148.3)
|
<0.001
|
|
Glutinous rice
|
157 (43.7 %)
|
183 (48.2 %)
|
0.228
|
-
aChi-square or t-test for difference between cases and controls
-
b1 yuan ≅ 0.16 USD
