Re: “Serum Phospholipid Fatty Acids and Prostate Cancer Risk: Results From the Prostate Cancer Prevention Trial”

In the article by Brasky et al. (Am J Epidemiol. 2011;173(12):1429–1439), duplicate data appeared in the low-grade cases and control columns for the age and race categories in Table 1. The corrected version of this portion of the table and the corresponding footnotes appear below.

Table 1.

Baseline Characteristics of Participants, Stratified by Prostate Cancer Grade, in the Prostate Cancer Prevention Trial, 1994–2003

Characteristic	Low-Grade Cases (n = 1,533)			High-Grade Cases (n = 125)			Controls (n = 1,803)
	No.	%	Mean (SD)	No.	%	Mean (SD)	No.	%	Mean (SD)
Age, yearsa			63.6 (5.5)			65.0** (5.9)			63.6 (5.6)
55–59	418	27.3		23	18.4*		479	26.6
60–64	499	32.6		42	33.6		584	32.4
65–69	375	24.5		29	23.2		444	24.6
≥70	241	15.7		31	24.8		296	16.4
Raceb
White	1,430	93.3****		109	87.2*		1,435	79.6
Black	68	4.4		11	8.8		175	9.7
Other	35	2.3		5	4.0		193	10.7

Abbreviation: SD, standard deviation.

* P < 0.05; **P < 0.01; ***P < 0.001; ****P < 0.0001 (all vs. controls).

^a Frequency match variable.

^b Nonwhite controls were oversampled from Prostate Cancer Prevention Trial population.