Table 2.

Crude HR and 95% CI for Traditional PrCa Risk Factors and Diabetes-related Traits in Men From the ARIC Study, United States, 1987–1989 or 1994–1996

	Overall (N=6,642)				Whites (N=5,082)				Blacks (N=1,560)
Risk Factor	N	PrCa events	HR	95% CI	N	PrCa events	HR	95% CI	N	PrCa events	HR	95% CI
Age at baseline (y)	6,642	397	1.10d	1.08, 1.12	5,082	268	1.11d	1.09, 1.14	1,560	129	1.10d	1.07, 1.13
Race
White	5,082	268	Ref
Black	1,560	129	1.72d	1.40, 2.12
Family history of PrCaa
No	5,803	283	Ref		4,082	211	Ref		1,001	72	Ref
Yes	374	42	2.06d	1.49, 2.85	306	31	2.00d	1.37, 2.91	68	11	2.34e	1.24, 4.41
Unknown	1,185b	72	1.69e	1.31, 2.20	694	26	1.14	0.76, 1.71	491	46	1.96d	1.35, 2.84
Prevalent diabetes
No	5,798	358	Ref		4,559	247	Ref		1,239	111	Ref
Yes	792	35	0.81	0.57, 1.14	509	19	0.76	0.48, 1.21	283	16	0.72	0.42, 1.21
Fasting glucose (mmol/L)c	5,659	346	0.93	0.76, 1.15	4,467	238	1.08	0.83, 1.39	1,192	108	0.79	0.56, 1.11
Fasting insulin (pmol/L)c	5,659	346	1.00	1.00, 1.00	4,467	238	1.00	1.00, 1.00	1,192	108	1.00	1.00, 1.00

Abbreviations: ARIC, Atherosclerosis Risk in Communities; CI, confidence interval; HR, hazard ratio; PrCa, prostate cancer.

^aFamily history was collected from 1994–1996. Others were collected from 1987–1989.

^b290 subjects were did not participate in the telephone interview from 1994–1996 and were therefore classified as unknown.

^cAmong men without prevalent diabetes

^dP<0.001.

^eP<0.01.