TABLE 1—
Mean Allostatic Load (AL) Score and Proportion With High Score, by Race and Gender: National Health and Nutrition Examination Survey IV, 1999–2002
| Total | Men | Women | ||||
| No. | Mean Score (% With AL ≥ 4) | No. | Mean Score (% With AL ≥ 4) | No. | Mean Score (% With AL ≥ 4) | |
| 18–24 y | ||||||
| Totalb | 1560 | 1.23 (6.32) | 825 | 1.21 (6.49) | 735 | 1.25 (6.14) |
| Black | 356 | 1.59 (8.33) | 198 | 1.45 (7.92) | 158 | 1.75 (8.80) |
| White | 475 | 1.14 (5.74) | 249 | 1.14 (6.31) | 226 | 1.15 (5.13) |
| Pa | <.01 (<.26) | <.04 (<.68) | <.01 (<.22) | |||
| 25–34 y | ||||||
| Totalb | 1170 | 1.80 (15.00) | 616 | 1.76 (14.19) | 554 | 1.86 (15.94) |
| Black | 221 | 2.17 (21.45) | 102 | 1.96 (18.26) | 119 | 2.34 (24.16) |
| White | 510 | 1.76 (14.78) | 272 | 1.67 (13.43) | 238 | 1.86 (16.37) |
| Pa | <.02 (<.11) | <.08 (<.27) | <.07 (<.19) | |||
| 35–44 y | ||||||
| Totalb | 1416 | 2.48 (26.07) | 719 | 2.51 (26.33) | 697 | 2.45 (25.79) |
| Black | 306 | 2.96 (37.45) | 151 | 2.92 (34.18) | 155 | 3.00 (40.28) |
| White | 613 | 2.37 (23.53) | 322 | 2.38 (23.92) | 291 | 2.36 (23.12) |
| Pa | <.01 (<.01) | <.01 (<.04) | <.01 (<.01) | |||
| 45–54 y | ||||||
| Totalb | 1305 | 3.44 (45.26) | 645 | 3.37 (45.73) | 660 | 3.51 (44.84) |
| Black | 248 | 4.04 (58.27) | 130 | 3.78 (54.45) | 118 | 4.34 (61.81) |
| White | 646 | 3.32 (42.50) | 323 | 3.28 (43.03) | 323 | 3.36 (42.01) |
| Pa | <.01 (<.01) | <.02 (<.07) | <.01 (<.01) | |||
| 55–64 y | ||||||
| Totala | 1135 | 4.12 (62.25) | 568 | 3.84 (57.42) | 567 | 4.39 (66.99) |
| Black | 209 | 4.79 (77.28) | 94 | 4.51 (69.49) | 115 | 4.99 (82.68) |
| White | 556 | 4.03 (59.61) | 291 | 3.79 (55.84) | 265 | 4.29 (63.59) |
| Pa | <.01 (<.01) | <.01 (<.01) | <.01 (<.01) | |||
aP value for comparison of Black and White mean scores (P value for comparison of Black and White percentages with high score).
bTotal includes participants of all races/ethnicities.