Obesity and colorectal cancer risk: A meta-analysis of cohort studies

Table 1 Characteristics of cohort studies investigating the association between obesity and colorectal cancer

Author, publicationyr, country, cohort	Study period	Age range	Sex	Cases/Cohort size	Body size measurement	Data collection	Cancer sites
Moore (2004)[6] USA	1948-1999	30-79	M/F	306/7566	BMI, WC	Measured	CC
Rapp (2005)[7] Austria	1985-2001	18-93	M/F	802/145 000	BMI	Measured	CC/RC
Larsson (2006)[8] Sweden	Began in 1997, Mean follow-up 7.1 yr	45-79	M	496/45 906	BMI, WC	Self-report	CC/RC
Lukanova (2006)[9] Sweden	1985-2003	30-60	M/F	244/68 786	BMI	Self-report	CC/RC
Pischon (2006)[10]	1992-2000	25-70	M/F	1570/368 277	BMI, WC, WHR	Measured	CC/RC
10 European countries
Maclnnis (2006)[11] Australia	Mean follow-up 10.4 yr	27-75	F	212/24 072	BMI, WC, WHR	Measured	CC
Ford (1999)[12] USA	1975-1992	25-74	M/F	222/13 420	BMI	Measured	CC
Giovannucci (1995)[13] USA	1986-1992	40-75	M	203/47 723	BMI, WC, WHR	Self-report	CC
Chyou (1996)[14] Japan	1965-1995	Born in 1900-1919	M	453/7945	BMI	Measured	CC/RC
Martinez (1997)[15] USA	1980-1992	30-55	F	396/89 448	BMI, WC, WHR	Self-report	CC
Bostick (1994)[16] USA	1986-1990	55-69	F	212/35 215	BMI, WHR	Self-report	CC
Terry (2002)[17] Canada	1982-1993	40-59	F	527/89 835	BMI	Self-report	CC/RC
MacInnis (2004)[18] Australia	1994-2002	27-75 99.3% 40-69	M	153/16 556	BMI, WC, WHR	Measured	CC
Terry (2001)[19] Sweden	1990-1998	40-76	F	460/61 463	BMI	Self-report	CC/RC
Lin (2004)[20] USA	average of 8.7 yr follow-up	≥ 45	F	202/37 671	BMI	Self-report	CC RC

M: male; F: female; BMI: body mass index; WC: waist circumference; WHR: waist-to-hip ratio; CC: colon cancer; RC: rectal cancer.