Table 3. Odds ratio of kidney cancer for BMI.

	Men				Women				Total
	Cases	Controls	ORa	95% CI	Cases	Controls	ORa	95% CI	Cases	Controls	ORa	95% CI
BMI	N	N			N	N			N	N
<25	191	363	1.00	Refb	136	169	1.00	Ref	327	532	1.00	Ref
25–27.5	166	248	1.19	0.91, 1.56	87	115	0.86	0.60, 1.25	253	363	1.09	0.88, 1.35
27.5–29.99	125	167	1.32	0.98, 1.79	98	90	1.16	0.80, 1.70	223	257	1.31	1.04, 1.65
30–35	133	139	1.70	1.25, 2.31	98	111	0.95	0.66, 1.38	231	250	1.38	1.09, 1.75
35+	32	32	1.72	1.01, 2.94	30	37	0.85	0.49, 1.48	62	69	1.29	0.88, 1.89
			P-value for trend 0.001				P-value for trend 0.68				P-value for trend 0.011

^aAdjusted for age, smoking, history of hypertension and country.

^bRef=reference category.