Table 2.
Baseline characteristics in the Leisure World Cohort Study, 1980s.
| Characteristic | Total (N=13,674) | Men (N=4992) | Women (N=8682) |
|---|---|---|---|
| Mean ± SD | |||
| Age at baseline, years | 73.6 ± 7.3 | 74.3 ± 7.2 | 73.2 ± 7.4 |
| Age at last follow-up, years | 87.6 ± 7.4 | 86.1 ± 7.1 | 88.5 ± 7.4 |
| Follow-up years | 14.0 ± 8.3 | 11.7 ± 7.7 | 15.3 ± 8.3 |
| Body mass index, kg/m2 | 23.5 ± 3.3 | 24.2 ± 2.9 | 23.1 ± 3.4 |
| Exercise, hours/day | 1.0 ± 1.2 | 1.1 ± 1.3 | 0.9 ± 1.1 |
| Alcohol, drinks/day | 1.4 ± 1.4 | 1.6 ± 1.5 | 1.2 ± 1.2 |
| Caffeine, mg/day | 171 ± 168 | 176 ± 172 | 168 ± 166 |
| N (%) | |||
| History of disease | |||
| High blood pressure | 5335 (39%) | 1803 (36%) | 3532 (41%) |
| Angina | 1547 (11%) | 728 (15%) | 819 (9.4%) |
| Heart attack | 1396 (10%) | 828 (17%) | 568 (6.5%) |
| Stroke | 670 (4.9%) | 351 (7.0%) | 319 (3.7%) |
| Cancer | 1593 (12%) | 467 (9.4%) | 1126 (13%) |
| Diabetes | 841 (6.2%) | 414 (8.3%) | 427 (4.9%) |
| Rheumatoid arthritis | 807 (5.9%) | 220 (4.4%) | 587 (6.8%) |
| Cigarette use | |||
| Never | 6436 (47%) | 1664 (33%) | 4772 (55%) |
| Past | 5724 (42%) | 2900 (58%) | 2824 (33%) |
| Current | 1514 (11%) | 428 (8.6%) | 1086 (12%) |
| Total attitude | |||
| Missing response | 657 (4.8%) | 207 (4.1%) | 450 (5.2%) |
| 7–20 | 2646 (19%) | 995 (20%) | 1651 (19%) |
| 21–24 | 3421 (25%) | 1286 (26%) | 2135 (25%) |
| 25–26 | 2757 (20%) | 1051 (21%) | 1706 (20%) |
| 27–28 | 4193 (31%) | 1453 (29%) | 2740 (32%) |
| Alive at follow-up | 269 (2.0%) | 44 (0.9%) | 225 (2.6%) |
Abbreviation: SD, standard deviation. p < 0.0001 for all differences between men and women except caffeine (p < 0.009) and total attitude (p < 0.0006).