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

Table 2 Types of quantile and cut-off points for upper and lower quantiles for waist and waist-to-hip ratio (WHR) used in the studies

Study	Type of quantilesused	Waist (cm)		WHR
		Upper limit oflower quantile	Lower limit ofupper quantile	Upper limit oflower quantile	Lower limit ofupper quantile
Moore (2004)[6]	Quartiles	83.8 (M)/81.3 (F)	101.6 (M)/99.1 (F)	ND	ND
Pischon (2006)[10]	Quintiles	86 (M)/70.2 (F)	103 (M)/89 (F)	0.887 (M)/0.734 (F)	0.990 (M)/0.846 (F)
Maclnnis (2006)[11]	Tertiles	80 (F)	88 (F)	0.75 (F)	0.80 (F)
Giovannucci (1995)[13]	Quintiles	35in (M)	43 in (M)	0.90 (M)	0.99 (M)
Martinez (1997)[15]	Quintiles	27.5in (F)	34in (F)	0.728 (F)	0.833 (F)
Bostick (1994)[16]	Quintiles	ND	ND	0.764 (F)	0.906 (F)
MacInnis (2004)[18]	Quartiles	87 (M)	99.3 (M)	0.88 (M)	0.96 (M)

M: male; F: female; ND: no data.