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From:
Published online 2013 February 13. doi: 10.1093/aje/kws261

Table 2.

Baseline Characteristics of Male Participants by Quintilesa of Diet Quality Index Scores, National Institutes of Health-AARP Diet and Health Study, 1995–2006

Diet Quality IndexNo. of ParticipantsRange of PointsMean Age,b yearsWhite,b %College Education,b %Body Mass Indexb,cNever Smoker,b %Physical Activityb >5 times/week, %Energy Intake,b kcalHistory of PSA Test,b %Family History of Prostate Cancer,d %History of Diabetes,e %
HEI-2005
 Quintile 158,69221–5561.593.033.527.320.015.6236835.98.06.1
 Quintile 558,69376–9762.892.352.626.936.228.2178750.38.414.7
aMED
 Quintile 150,2040–261.593.633.427.623.515.5227436.78.09.0
 Quintile 575,1856–962.692.654.326.733.427.5186750.28.59.0
AHEI-2010
 Quintile 158,69211–4361.793.032.927.726.615.2213137.68.09.4
 Quintile 558,69361–9462.492.556.226.731.630.0201649.68.49.4

Abbreviations: AHEI-2010, Alternate Healthy Eating Index-2010; aMED, alternate Mediterranean diet Score; HEI-2005, Healthy Eating Index 2005; PSA, prostate-specific antigen.

a Quintile 5 indicates a healthier diet by index scoring standards.

b Differences between quintile 1 and quintile 5 (t test or χ statistic) are statistically significant at P < 0.0001 for all indices.

c Weight (kg)/height (m)2.

d Differences between quintile 1 and quintile 5 (χ2 statistic) are statistically significant at P< 0.005 for all indices.

e Differences between quintile 1 and quintile 5 (χ2 statistic) are statistically significant at P < 0.0001 for HEI-2005.