Table 2. Changes in risk discrimination for the risk of incident cancer in men and women combined after addition of anthropometric indicators to the null model.

	Null model		BMI		WC		HC		WHR		BMI+WC+HC
	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI
Obesity-related cancersa
AIC	15826.6		15823.6		15820.6		15823.7		15823.4		15823.1
C-index	0.688	0.676–0.699	0.687	0.675–0.698	0.663	0.649–0.677	0.663	0.650–0.677	0.664	0.651–0.678	0.663	0.650–0.677
Colorectal cancer
AIC	5678.8		5672.8		5670.2		5674.8		5674.0		5673.5
C-index	0.688	0.667–0.709	0.689	0.668–0.711	0.680	0.655–0.704	0.679	0.655–0.704	0.681	0.657–0.706	0.681	0.656–0.705
Breast cancerb
AIC	5031.2		5030.3		5031.9		5032.0		5033.1		5032.9
C-index	0.824	0.813–0.836	0.823	0.812–0.835	0.801	0.787–0.815	0.802	0.788–0.816	0.803	0.789–0.817	0.801	0.787–0.815
Other obesity-related cancersc
AIC	4780.7		4782.7		4781.4		4782.2		4777.0		4780.6
C-index	0.588	0.561–0.615	0.587	0.559–0.614	0.605	0.573–0.637	0.605	0.574–0.637	0.612	0.581–0.643	0.618	0.587–0.648

Abbreviations: AIC=Akaike Information Criterion; BMI=body mass index; CI=confidence interval; HC=hip circumference; WC=waist circumference; WHR=waist-to-hip ratio.

Note: Null model included sex, age, daily smoking (never, former, current, and missing), average alcohol consumption (g/d), education (primary or less, more than primary but less than college, college or university, missing), vigorous physical activity (yes, no, and missing), recruitment year, and height.

^aFirst primary cancers of the breast (postmenopausal), colorectum, lower oesophagus, cardia stomach, liver, gallbladder, pancreas, endometrium, ovary, and kidney.

^bWomen only.

^cSame as all obesity-related cancers but excluding first primary cancers of the breast and of the colorectum.