Table 1.

Description of study population by prostate cancer status, 2009–2010 NHANES data.

Variables and factors		% Prostate cancer status		P (for z-test)
		No prostate cancer (n = 296495347)*	Has prostate cancer (n = 5448373)*
Race/Ethnicity	Hispanic	16.0	13.4	< 0.05
	Caucasian	64.5	70.1	< 0.05
	African American or Black	12.0	13.5	< 0.05
	Other	7.5	3.1	< 0.05
Age	18–39 years	39.1	37.3	< 0.05
	40 and older	60.9	62.7	< 0.05
Education	< HS	18.9	26.4	< 0.05
	HS graduate	53.4	48.3	< 0.05
	University graduate	27.7	25.3	< 0.05
Annual household income	< $54,999	48.1	52.8	< 0.05
	≥$55,000–99,999	29.7	23.1	< 0.05
	$100,000 and over	22.1	24.1	< 0.05
C-reactive protein	Low risk for cancer	43.1	39.9	< 0.05
	No cancer risk	28.6	32.9	< 0.05
	High risk for cancer	28.4	27.2	< 0.05

^*Weighted; HS, High School.