Table 1.
Baseline characteristics of 785 adults enrolled in the Danish diet, cancer and health cohort with incident asthma between baseline (1993–1997) and follow-up (July 2013)
| Asthma (N=785) | Alive n=709) | Dead (n=76) | |
| Age 50–55, n (%) | 50 (6.4) | 44 (6.2) | 6 (7.9) |
| Age 55–60, n (%) | 155 (19.7) | 136 (19.2) | 19 (25.0) |
| Age 60–65, n (%) | 580 (73.9) | 529 (74.6) | 51 (67.1) |
| Men, n (%) | 290 (37) | 136 (19) | 19 (25) |
| Mean body mass index (kg/m2) | 26.5 (12) | 26.4 (4.2) | 27.1 (4.6) |
| Smoking history, n (%) | |||
| Never | 351 (45) | 318 (45) | 33 (43) |
| Previous | 260 (33) | 241 (34) | 33 (25) |
| Current | 174 (22) | 150 (21) | 19 (32) |
| Mean smoking duration (years) (SD) | 25.9 (12) | 25.3 (12) | 31.1 (12) |
| Mean smoking intensity (g/day) (SD) | 5.7 (9.1) | 5.3 (9.0) | 9.1 (10) |
| Exposed to environmental tobacco smoke, n (%) | 449 (57) | 403 (57) | 46 (61) |
| Physically active in leisure time, n (%) | 432 (55) | 404 (57) | 28 (37) |
| Mean fruit intake (g/day) (SD) | 192 (145) | 193 (146) | 177 (129) |
| Employed, n (%) | 612 (78) | 559 (79) | 53 (70) |
| Marital status, n (%) | |||
| Single | 45 (5.7) | 35 (4.9) | 10 (13) |
| Married | 558 (71) | 507 (72) | 51 (67) |
| Divorced | 136 (17) | 125 (18) | 11 (16) |
| Widowed | 46 (5.9) | 42 (5.9) | 4 (5.3) |
| Years of education, n (%) | |||
| <8 | 223 (28) | 198 (28) | 25 (33) |
| 8–10 | 395 (50) | 361 (51) | 34 (45) |
| ≥10 | 167 (21) | 150 (21) | 23 (30) |
| Comorbidity, n (%) | |||
| Myocardial infarction | 13 (1.7) | 9 (1.3) | 4 (5.3) |
| Stroke | 4 (0.5) | 3 (0.4) | 1 (1.3) |
| Diabetes | 13 (1.7) | 8 (1.1) | 5 (6.6) |
| Hypertension | 155 (20) | 126 (18) | 29 (38) |
| Hypercholesterolaemia | 46 (5.9) | 45 (6.3) | 1 (1.3) |
SD, Standard Deviation.