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Table 2

NERC by selected characteristics of study subjects

CharacteristicsCategoryControlCaseP              aP              b
nMean (SD)nMean (SD)
Total  96 9.64% (5.49%) 140 8.06% (5.17%)  0.02 
Age <50 10.24% (7.08%) 4.90% (3.39%)   
 50–59 18 8.85% (5.35%) 35 6.33% (3.26%)   
 60–69 40 9.37% (5.11%) 55 8.82% (6.01%)   
 ≥70 30 10.31% (5.79%) 48 8.58% (5.09%) 0.22 0.02 
Race African American 11.47% (8.47%) 13 8.46% (7.20%)   
 Caucasian 87 9.45% (5.12%) 127 8.02% (4.95%) 0.58 0.02 
Smoking Status Never 29 10.11% (6.18%) 45 7.98% (4.50%)   
 Former 58 9.52% (5.04%) 76 8.38% (5.69%)   
 Current 8.83% (6.37%) 19 6.95% (4.47%) 0.54 0.02 
BPHc No 21 10.86% (5.95%) 67 8.53% (5.30%)   
 Yes 75 9.29% (5.34%) 71 7.61% (5.11%) 0.10 0.01 
FHd No 80 9.65% (5.44%) 105 7.65% (5.02%)   
 Yes 14 8.59% (5.05%) 34 9.49% (5.42%) 0.27 0.02 
CharacteristicsCategoryControlCaseP              aP              b
nMean (SD)nMean (SD)
Total  96 9.64% (5.49%) 140 8.06% (5.17%)  0.02 
Age <50 10.24% (7.08%) 4.90% (3.39%)   
 50–59 18 8.85% (5.35%) 35 6.33% (3.26%)   
 60–69 40 9.37% (5.11%) 55 8.82% (6.01%)   
 ≥70 30 10.31% (5.79%) 48 8.58% (5.09%) 0.22 0.02 
Race African American 11.47% (8.47%) 13 8.46% (7.20%)   
 Caucasian 87 9.45% (5.12%) 127 8.02% (4.95%) 0.58 0.02 
Smoking Status Never 29 10.11% (6.18%) 45 7.98% (4.50%)   
 Former 58 9.52% (5.04%) 76 8.38% (5.69%)   
 Current 8.83% (6.37%) 19 6.95% (4.47%) 0.54 0.02 
BPHc No 21 10.86% (5.95%) 67 8.53% (5.30%)   
 Yes 75 9.29% (5.34%) 71 7.61% (5.11%) 0.10 0.01 
FHd No 80 9.65% (5.44%) 105 7.65% (5.02%)   
 Yes 14 8.59% (5.05%) 34 9.49% (5.42%) 0.27 0.02 
a

Difference in NERC by selected characteristics adjusted for case/control status.

b

Difference in NERC by case/control status adjusted for selected characteristics.

c

BPH, benign prostatic hyperplasia.

d

FH, family history of prostate cancer in first-degree relatives.

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