Table 3. Multivariable-adjusted odds ratios for kidney cancer with regards to diabetes status and diabetes duration (either treated as a continuous variable or categorized into subgroups).

Variables	Interpretation	Odds ratio*	95% confidence interval	P
Diabetes status	No	1.0
	Yes	1.7	(1.3–2.1)	<0.01
Diabetes duration	Every 1-year increment	1.1	(1.0–1.1)	<0.01
Diabetes duration	Non-diabetes	1.0
	Diabetes duration <1 year	1.5	(0.8–2.7)	0.23
	Diabetes duration 1–2.9 years	1.6	(1.0–2.4)	0.04
	Diabetes duration 3–4.9 years	1.6	(1.1–2.4)	0.03
	Diabetes duration ≥5 years	1.7	(1.3–2.3)	<0.01
				P-trend <0.01

*Adjusted for all variables in Table 1