Table 3.

Age and Race Distribution of the Final Study Group

Age (yr)Af.-Am. (%)White (%)Total (%)
3290  (17.7)2280  (14.8)2570  (15.1)
4290  (17.7)2533  (16.4)2823  (16.5)
5209  (12.8)2411  (15.6)2620  (15.3)
6126  (7.7)1506  (9.8)1632  (9.6)
7136  (8.3)1128  (7.3)1264  (7.4)
8143  (8.7)1334  (8.6)1477  (8.7)
9115  (7.0)1067  (6.9)1182  (6.9)
10112  (6.8)1153  (7.5)1265  (7.4)
11126  (7.7)1104  (7.2)1230  (7.2)
1291  (5.6)923  (6.0)1014  (5.9)
Total1638  (9.6%)15 439  (90.4%)17 077