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Table 2 Distribution of dietary and lifestyle characteristics of cases and controls

From: The consumption of chili peppers and the risk of colorectal cancer: a matched case-control study

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)