Brief Reports
Copyright ©The Author(s) 2003.
World J Gastroenterol. Jul 15, 2003; 9(7): 1598-1600
Published online Jul 15, 2003. doi: 10.3748/wjg.v9.i7.1598
Table 1 Case-control studies on risk factors of colorectal cancer
NoAuthorAreaNumber of casesNumber of casesSources of references
1JIAO Den-AoJiashan1609Zhonghua Liuxingbingxue Zazhi, 1988, 9(6):354-357
2WU Den-RenJiashan1145Shiyong Zhongliu Zazhi, 1990, 5(2): 95-99
3YANG GongShanghai8502Zhonghua Liuxingbingxue Zazhi, 1992, 13(1): 30-33
4ZHANG CaoBeijing2505Zhonghua Liuxingbingxue Zazhi, 1992, 13(6):321-323
5ZOU RunJiashan4110Zhongguo Manxingbing Yufang Yu Kongzhi, 1993, 1(5): 213-215
6MEN Fan-HeGuangdong1003Diyi Junyi Daxue Xuebao, 1994, 14(4): 281-283
9LIU Xi-YongJiashan2866Zhongguo Manxingbing Yufang Yu Kongzhi, 1994, 2(3): 122-124
7YANG GongShanghai13284Zhonghua Liuxingbingxue Zazhi, 1994, 15(5):299-303
8YANG Gong3Zhongguo Zhongliu Linchuang, 1995, 22(6):403-408
10LAI Kuang-DeDalian1293Zhongguo Manxingbing Yufang Yu Kongzhi, 1995, 3(3):106-109
11HE Xi-ZhenShenyang3902Shiyong Zhongliuxue Zazhi, 1996, 10(2): 64-65
12YANG GongShanghai31663Zhongliu, 1996, 16(2): 74-78
13ZOU RunHangzhou2455Zhejiang Yike Daxue Xuebao, 1996, 25(5): 204-206
4LIU Ai-ZongHunan1537Zhongguo Gonggong Weisheng, 1997, 13(4):206-207
Table 2 Results from meta-analysis of risk factors of colorectal cancer
FactorsNumber of referencesPooled OR and 95%CIFactorsNumber of referencesPooled OR and 95%CI
(1) History of chronic diarrhea74.80 (4.30-5.37)(8) Pickled vegetables31.86 (1.67-2.07)
(2) History of fecal mucohemorrhage57.18 (5.06-10.21)(9) High lipid food33.16 (2.22-4.51)
(3) History of bowel polyps512.69 (7.49-21.48)(10) Proper physical activities40.74 (0.72-0.77)
(4) History of constipation42.23 (1.95-2.54)(11) Alcohol drinking51.06 (0.91-1.24)
(5) History of appendicitis31.98 (1.71-2.28)(12) Cigarette smoking51.40 (1.10-1.77)
(6) Dietary fibers50.79 (0.59-0.99)(13) Emotional trauma42.95 (2.81-3.09)
(7) Fish fry-cooked with soybean sauce
4
2.99 (2.69-3.35)
(14) Family history of cancers
7
2.27 (2.12-2.44)
(1) references: 1, 2, 5, 7, 9, 13, 14(2) references: 1, 5, 7, 9, 13(3) references: 1, 2, 5, 7, 12
(4) references: 1, 5, 7, 9(5) references: 1, 2, 5(6) references: 4, 6, 10, 11, 14
(7) references: 1, 5, 6, 7(8) references: 2, 6, 14(9) references: 4, 5, 14
(10) references: 4, 10, 13, 14(11) references: 2, 5, 8, 13, 14(12) references: 2, 5, 6, 8, 14
(13) references: 1, 4, 5, 7(14) references: 1, 3, 4, 5, 6, 7, 14
Table 3 Results from stratified meta-analysis of risk factors of colorectal cancer
FactorsStrataPooled OR and 95% C.I.FactorsStrataPooled OR and 95% C.I.
History ofCDa6.04 (5.45-6.70)PickledCD1.58 (1.20-2.07)
chronicNDa3.99 (2.81-5.66)vegetablesND2.30 (1.30-4.20)
diarrheaJcab7.01 (0.48-10.12)Jca1.70 (1.10-2.50)
Zcab4.02 (1.13-14.21)Zca1.50 (1.01-2.30)
HB6.60 (2.46-11.21)HB2.30 (1.30-4.20)
PB4.50 (3.90-5.17)PB1.58 (1.20-2.07)
Fecal muco-CDb9.81 (4.55-21.17)AlcoholCDb0.91 (0.71-1.17)
hemorrhageNDb3.60 (2.80-4.80)drinkingNDb1.65 (1.03-2.63)
Jcab2.80 (0.75-10.46)HBb1.65 (1.03-2.63)
Zcab4.56 (2.12-9.81)PBb0.91 (0.71-1.17)
History ofCDa7.40 (4.13-13.28)CigaretteCDb0.74 (0.43-1.27)
bowel polypsNDa22.30 (12.40-40.01)smokingNDb1.92 (1.49-2.47)
Jca17.42 (14.54-20.85)HBb1.92 (1.49-2.47)
Zca12.14 (3.07-28.00)PBb0.74 (0.43-1.27)
History ofCD2.53 (1.55-4.11)EmotionalJcab2.80 (1.51-3.28)
constipationND1.90 (1.50-2.40)traumaZcab1.63 (0.39-6.85)
Jcab3.4 (1.02-11.39)NOR3.36 (2.21-5.12)
Zcab0.89 (0.09-8.53)SOU2.53 (2.28-2.81)
Dietary fibersCDb0.43 (0.18-0.97)ProperCD0.79 (0.77-0.81)
NDb1.02 (0.40-2.57)physicalND0.57 (0.35-0.90)
NORb0.43 (0.18-0.97)activitiesNORa0.69 (0.67-0.71)
SOUb1.02 (0.40-2.57)SOUa0.77 (0.70-0.85)
HBb0.86 (0.58-0.96)HB0.57 (035-0.90)
PBb0.37 (0.06-2.13)PB0.79 (0.77-0.81)
Fish fry-CD2.84 (2.31-3.48)Family historyCDa1.76 (1.71-1.81)
cooked withND3.20 (1.60-6.30)of cancersNDa3.73 (3.14-4.44)
soybeanJcab7.01 (1.10-12.01)Jcaa2.84 (2.58-3.13)
Zcab1.18 (0.30-8.01)Zcaa1.52 (1.34-1.72)
HB3.20 (1.60-6.30)HBa3.73 (3.14-4.44)
PB2.84 (2.31-3.48)PBa1.76 (1.71-1.81)