Copyright ©2007 Baishideng Publishing Group Co.
World J Gastroenterol. Aug 21, 2007; 13(31): 4161-4167
Published online Aug 21, 2007. doi: 10.3748/wjg.v13.i31.4161
Table 2 Case-control studies correlating dietary fiber with colorectal neoplasia
ReferenceCountryNumber of cases/controlsOdds ratio of CRC comparing highest to lowest fiber intake groupsDietary fiber protective
Wakai et al 2006[15]Japan507/25350.65 (P < 0.05)Yes (colon)
Levi et al 2001[16]Switzerland286/5500.55 (P < 0.05)Yes
Ghadirian et al 1997[17]Canada402/6680.50 (P < 0.01)Yes
Slattery et al 1997[18]United States1993/24100.70 (95% CI 0.5-1.0)No
Little et al 1993[19]United Kingdom147/3290.60 (not significant after adjustment for energy intake)No
Steinmetz et al 1993[20]Australia220/4380.77 (not significant)No