Table 2.
Characteristics of participants in three study samples. Data are number (%) of participants unless stated otherwise
| Characteristic and risk factor | Index age | ||
|---|---|---|---|
| 55 years (n=5338) | 65 years (n=4805) | 75 years (n=3199) | |
| Male | 2531 (47.4) | 2126 (44.3) | 1291 (40.4) |
| Age (years; mean (standard deviation)) | 55 (1) | 65 (1) | 75 (1) |
| Calendar year for Framingham Heart Study examination (median (interquartile range) | 1995 (1985-2005) | 1993 (1982-2005) | 1992 (1983-2001) |
| Length of follow-up (years; median (interquartile range)) | 14 (7-22) | 11 (6-18) | 8 (4-13) |
| Smoking | |||
| Optimal | 1935 (36.3) | 1570 (32.7) | 1233 (38.5) |
| Borderline | 2275 (42.6) | 2414 (50.2) | 1667 (52.1) |
| Elevated | 1128 (21.1) | 821 (17.1) | 299 (9.4) |
| Alcohol | |||
| Optimal | 4283 (80.2) | 3857 (80.3) | 2767 (86.5) |
| Elevated | 1055 (19.8) | 948 (19.7) | 432 (13.5) |
| Body mass index | |||
| Optimal | 1785 (33.4) | 1537 (32.0) | 1126 (35.2) |
| Borderline | 2136 (40.0) | 2008 (41.8) | 1364 (42.6) |
| Elevated | 1417 (26.6) | 1260 (26.2) | 709 (22.2) |
| Blood pressure | |||
| Optimal | 1539 (28.8) | 778 (16.2) | 272 (8.5) |
| Borderline | 1792 (33.6) | 1303 (27.1) | 676 (21.1) |
| Elevated | 2007 (37.6) | 2724 (56.7) | 2252 (70.4) |
| Diabetes | |||
| Optimal | 3805 (71.3) | 3137 (65.3) | 2249 (70.3) |
| Borderline | 1187 (22.2) | 1149 (23.9) | 584 (18.3) |
| Elevated | 346 (6.5) | 519 (10.8) | 366 (11.4) |
| History of heart failure or myocardial infarction | |||
| Optimal | 5069 (95.0) | 4236 (88.2) | 2623 (82.0) |
| Elevated | 269 (5.0) | 569 (11.8) | 576 (18.0) |