Background
Objects and methods
Study participants
Survey
Statistical analysis
Results
Characteristics of participants
Variables | Cases N(%) | Controls N(%) |
χ
2
|
P
|
---|---|---|---|---|
Education | ||||
Primary school and below | 151(37.75) | 175(43.75) | 5.576 | 0.062 |
Junior-senior high school and secondary school | 216(54.00) | 183(45.75) | ||
Junior college and above | 33 (8.25) | 42(10.50) | ||
Profession | ||||
Enterprises and institutions | 104(26.00) | 111(27.75) | 1.287 | 0.864 |
Manufacturing industry | 78(19.50) | 85(21.25) | ||
Transport industry | 12 (3.00) | 13 (3.25) | ||
Agriculture, forestry, fishery, and animal husbandry | 145(36.25) | 131(32.75) | ||
Others | 61(15.25) | 60(15.00) | ||
Household per capita annual income(yuan per year) | ||||
< 10000 | 134(33.50) | 118(29.50) | 1.530 | 0.465 |
10000–20000 | 159(39.75) | 166(41.50) | ||
> 20000 | 107(26.75) | 116(29.00) |
Diets and lifestyle
Variables | Cases, N(%) | Controls, N(%) |
χ
2
|
P
|
---|---|---|---|---|
Chili peppers (times per week) | ||||
≤ 2 | 95(23.75) | 136(34.00) | 17.601a | < 0.001 |
3–7 | 114(28.50) | 130(32.50) | ||
> 7 | 191(47.75) | 134(33.50) | ||
Red meat(times per week) | ||||
≤ 7 | 144(36.00) | 214(53.50) | 24.773 | < 0.001 |
> 7 | 256(64.00) | 186(46.50) | ||
Cured meat(times per year) | ||||
< 24 | 144(36.00) | 240(60.00) | 46.154 | < 0.001 |
≥ 24 | 256(64.00) | 160(40.00) | ||
Pickles(times per week) | ||||
< 3 | 151(37.75) | 259(64.75) | 58.356 | < 0.001 |
≥ 3 | 249(62.25) | 141(35.25) | ||
Tea-drinking regularly | ||||
No | 249(62.25) | 211(52.75) | 7.386 | 0.007 |
Yes | 151(37.75) | 189(47.25) | ||
Beans(times per week) | ||||
< 3 | 318(79.50) | 271(67.75) | 14.220 | < 0.001 |
≥ 3 | 82(20.50) | 129(32.25) | ||
Fruits(times per week) | ||||
< 3 | 186(46.50) | 150(37.50) | 6.650 | 0.010 |
≥ 3 | 214(53.50) | 250(62.50) | ||
High-fat food(times per week) | ||||
≤ 2 | 273(68.25) | 282(70.50) | 0.477 | 0.490 |
> 2 | 127(31.75) | 118(29.50) | ||
Sweetmeats(times per week) | ||||
< 3 | 296(74.00) | 323(80.75) | 5.205 | 0.023 |
≥ 3 | 104(26.00) | 77(19.25) | ||
Vegetables(times per week) | ||||
≤ 7 | 56(14.00) | 61(15.25) | 0.250 | 0.617 |
> 7 | 344(86.00) | 339(84.75) | ||
Daily sitting time(hour) | ||||
< 8 | 296(74.00) | 337(84.25) | 12.721 | < 0.001 |
≥ 8 | 104(26.00) | 63(15.75) | ||
Smoking regularly | ||||
No | 226(56.50) | 230(57.50) | 0.082 | 0.775 |
Yes | 174(43.50) | 170(42.50) | ||
Drinking regularly | ||||
No | 273(68.25) | 274(68.50) | 0.006 | 0.939 |
Yes | 127(31.75) | 126(31.50) | ||
Exercise regularly | ||||
No | 247(61.75) | 151(37.75) | 46.081 | < 0.001 |
Yes | 153(38.25) | 249(62.25) | ||
Family history of CRC | ||||
No | 365(91.25) | 391(97.75) | 16.258 | < 0.001 |
Yes | 35 (8.75) | 9 (2.25) |
Variable | Cases N(%) | Controls N(%) | ORa(95% CI) |
P
|
---|---|---|---|---|
Chili peppers(times per week) | ||||
≤ 2 | 95(23.75) | 136(34.00) | Reference | |
3–7 | 114(28.50) | 130(32.50) | 1.2(0.75–2.0) | 0.413 |
> 7 | 191(47.75) | 134(33.50) | 1.4(0.84–2.2) | 0.205 |
Subgroups | Variable | Cases N(%) | Controls N(%) | OR(95% CI) |
P
|
---|---|---|---|---|---|
Low red meat (≤ 7 times per week) | Chili peppers (times per week) | ||||
≤ 2 | 39(27.08) | 88(41.12) | Reference | ||
3–7 | 55(38.19) | 80(37.38) | 1.0(0.69–1.6) | 0.826 | |
> 7 | 50(34.72) | 46(21.50) | 1.3(0.80–2.0) | 0.326 | |
High red meat (> 7 times per week) | Chili peppers (times per week) | ||||
≤ 2 | 56(21.88) | 48(25.81) | Reference | ||
3–7 | 59(23.05) | 50(26.88) | 0.96(0.65–1.4) | 0.835 | |
> 7 | 141(55.08) | 88(47.31) | 1.1(0.76–1.5) | 0.736 | |
Low cured meat (< 24 times per year) | Chili peppers (times per week) | ||||
≤ 2 | 36(25.00) | 101(42.08) | Reference | ||
3–7 | 38(26.39) | 78(32.50) | 1.2(0.78–2.0) | 0.362 | |
> 7 | 70(48.61) | 61(25.42) | 1.6(1.1–2.5) | 0.022 | |
High cured meat (≥ 24 times per year) | Chili peppers (times per week) | ||||
≤ 2 | 59(23.05) | 35(21.88) | Reference | ||
3–7 | 76(29.69) | 52(32.50) | 0.90(0.63–1.3) | 0.539 | |
> 7 | 121(47.27) | 73(45.63) | 0.89(0.65–1.2) | 0.499 | |
Low high-fat food (≤ 2 times per week) | Chili peppers (times per week) | ||||
≤2 | 75(27.47) | 104(36.88) | Reference | ||
3-7 | 69(25.27) | 87(30.85) | 0.98(0.70–1.4) | 0.907 | |
>7 | 129(47.25) | 91(32.27) | 1.1(0.84–1.5) | 0.404 | |
High high-fat food (> 2 times per week) | Chili peppers (times per week) | ||||
≤ 2 | 20(15.75) | 32(27.12) | Reference | ||
3–7 | 45(35.43) | 43(36.44) | 1.1(0.65–1.9) | 0.700 | |
> 7 | 62(48.82) | 43(36.44) | 1.1(0.66–1.9) | 0.666 | |
Low daily sitting (< 8 h) | Chili peppers (times per week) | ||||
≤ 2 | 70(23.65) | 118(35.01) | Reference | ||
3–7 | 91(30.74) | 113(33.53) | 1.1(0.78–1.5) | 0.624 | |
> 7 | 135(45.61) | 106(31.45) | 1.2(0.92–1.7) | 0.157 | |
High daily sitting (≥ 8 h) | Chili peppers (times per week) | ||||
≤ 2 | 25(24.04) | 18(28.57) | Reference | ||
3–7 | 23(22.12) | 17(26.98) | 0.98(0.53–1.8) | 0.944 | |
> 7 | 56(53.85) | 28(44.44) | 0.95(0.57–1.6) | 0.852 | |
Not regular drinking | Chili peppers (times per week) | ||||
≤2 | 69(25.27) | 105(38.32) | Reference | ||
3–7 | 84(30.77) | 95(34.67) | 1.1(0.76–1.5) | 0.761 | |
>7 | 120(43.96) | 74(27.01) | 1.2(0.88–1.6) | 0.262 | |
Regular drinking | Chili peppers (times per week) | ||||
≤ 2 | 26(20.47) | 31(24.60) | Reference | ||
3–7 | 30(23.62) | 35(27.78) | 0.93(0.54–1.6) | 0.776 | |
> 7 | 71(55.91) | 60(47.62) | 1.0(0.64–1.6) | 0.922 | |
Not regular smoking | Chili peppers (times per week) | ||||
≤2 | 57(25.22) | 88(38.26) | Reference | ||
3-7 | 68(30.09) | 77(33.48) | 1.1(0.78–1.6) | 0.525 | |
>7 | 101(44.69) | 65(28.26) | 1.2(0.85–1.7) | 0.298 | |
Regular smoking | Chili peppers (times per week) | ||||
≤ 2 | 38(21.84) | 48(28.24) | Reference | ||
3–7 | 46(26.44) | 53(31.18) | 0.89(0.57–1.4) | 0.606 | |
> 7 | 90(51.72) | 69(40.59) | 1.1(0.71–1.6) | 0.792 |