Table 1.
Baseline characteristics of study participants by race, sex, and PPARG Ala12 allele carrier status.
| Characteristic | Blacks | Whites | ||||||
|---|---|---|---|---|---|---|---|---|
| Males | Females | Males | Females | |||||
| Ala12+ | Ala12− | Ala12+ | Ala12− | Ala12+ | Ala12− | Ala12+ | Ala12− | |
| N (%) | 31 (3.4) | 884 (96.6) | 64 (3.9) | 1557 (96.1) | 948 (22.2) | 3322 (77.8) | 1127 (23.4) | 3687 (76.6) |
| Age, mean (SD) | 57.5 (6.5) | 56.4 (5.8) | 54.9 (5.8) | 56.1 (5.6) | 57.5 ( 5.7) | 57.6 ( 5.7) | 57.0 (5.6) | 56.9 (5.7) |
| Education, n (%) | ||||||||
| Some high school or less | 10 (32.3) | 346 (39.2) | 23 (35.9) | 596 (38.4) | 140 (14.8) | 538 (16.2) | 168 (14.9) | 541 (14.7) |
| High school graduate/vocational school | 6 (19.3) | 239 (27.1) | 13 (20.3) | 456 (29.4) | 398 (42.0) | 1296 (39.1) | 567 (50.4) | 1913 (51.9) |
| College/graduate school | 15 (48.4) | 297 (33.7) | 28 (43.8) | 501 (32.2) | 409 (43.2) | 1482 (44.7) | 390 (34.7) | 1231 (33.4) |
| APOE ε4 carrier, n (%) | 9 (32.1) | 366 (42.3) | 24 (38.7) | 599 (39.3) | 254 (27.9) | 904 (28.3) | 301 (28.1) | 976 (27.6) |
| Diabetes, n (%) | 6 (20.7) | 205 (23.4) | 9 (14.1) | 407 (26.4)* | 127 (13.4) | 448 (13.5) | 102 (9.1) | 366 (9.9) |
| History of stroke, n (%) | 1 (3.2) | 29 (3.3) | 2 (3.1) | 40 (2.6) | 21 (2.2) | 63 (1.9) | 13 (1.2) | 38 (1.0) |
| Body mass index, kg/m2 | 30.0 (5.2) | 28.2 (4.9) | 31.5 (6.6) | 31.1 (6.6) | 27.7 (4.1) | 27.7 (4.1) | 27.2 (5.8) | 27.0 (5.5) |
| Waist circumference, cm | 104.2 (15.3) | 99.2 (12.7)* | 103.5 (14.1) | 102.3 (16.4) | 100.8 (10.8) | 100.7 (10.8) | 93.9 (16.0) | 93.6 (15.3) |
*
P < 0.05 for differences among Ala12 carrier status within the race/sex group.