Table 1. Baseline Characteristics and Body Mass Index Categories Among Men and Women According to Index Age Group.
| Demographic Characteristics | No. (%) | |||||
|---|---|---|---|---|---|---|
| Young (20-39 y) | Middle-aged (40-59 y) | Older (60-79 y) | ||||
| Men (n = 14 790) | Women (n = 12 072) | Men (n = 21 390) | Women (n = 51 100) | Men (n = 13 657) | Women (n = 77 663) | |
| Follow-up, person-years | 461 648 | 382 792 | 472 519 | 856 523 | 179 397 | 893 702 |
| African American | 1998 (13.5) | 3113 (25.8) | 2762 (12.9) | 6700 (13.1) | 1807 (13.2) | 6951 (9.0) |
| Risk factors | ||||||
| Diabetes | 141 (1.0) | 104 (0.9) | 1175 (5.5) | 2122 (4.2) | 1544 (11.5) | 4386 (5.7) |
| Current smoking | 7089 (48.0) | 5387 (44.6) | 8536 (39.9) | 9500 (26.2) | 2882 (21.9) | 6344 (14.5) |
| Systolic blood pressure, mean (SD), mm Hg | 130 (16) | 118 (15) | 131 (21) | 123 (19) | 136 (22) | 131 (19) |
| Hypertension treatment | 176 (1.3) | 137 (1.2) | 2373 (11.9) | 8249 (16.7) | 3803 (28.1) | 23 400 (30.1) |
| Total cholesterol, mean (SD), mg/dL | 190 (37) | 182 (34) | 210 (40) | 212 (42) | 208 (41) | 227 (45) |
| 10-y ASCVD risk, mean (SD), % | 1.2 (1.8) | 1.5 (5.0) | 7.1 (6.1) | 3.1 (5.0) | 18.2 (10.8) | 11.0 (9.8) |
| Body mass index categoriesa | ||||||
| Underweight (<18.5) | 123 (0.8) | 792 (6.6) | 76 (0.4) | 592 (1.2) | 90 (0.7) | 814 (1.0) |
| Normal weight (18.5-24.9) | 6430 (43.5) | 8197 (67.9) | 5861 (27.4) | 21 807 (42.7) | 3863 (28.3) | 30 340 (39.1) |
| Overweight (25.0-29.9) | 6471 (43.8) | 2094 (17.3) | 10 831 (50.6) | 15 946 (31.2) | 6769 (49.6) | 27 266 (35.1) |
| Obesity (30.0-39.9) | 1711 (11.6) | 850 (7.0) | 4400 (20.6) | 10 630 (20.8) | 2836 (20.8) | 16 920 (21.8) |
| Morbid obesity (≥40.0) | 55 (0.3) | 139 (1.2) | 222 (1.0) | 2125 (4.2) | 99 (0.7) | 2323 (3.0) |
Abbreviation: ASCVD, atherosclerotic cardiovascular disease.
a
Body mass index calculated as weight in kilograms divided by height in meters squared.