Table 1.
Characteristics of men and women at first examination according to migraine and headache status in Reykjavik Study (n=18 725*). Figures are percentages of participants unless stated otherwise
| Characteristic | Men | Women | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No headache | Non-migraine headache† | Migraine | Migraine without aura‡ | Migraine with aura§ | No headache | Non-migraine headache† | Migraine | Migraine without aura‡ | Migraine with aura§ | ||
| Mean (SD) age (years) | 52.7 (8.6) | 51.5 (8.7) | 50.6 (8.2) | 49.9 (7.3) | 50.8 (8.4) | 54.4 (9.0) | 52.1 (9.0) | 50.7 (8.4) | 49.9 (8.1) | 51.1 (8.6) | |
| Mean (SD) BMI | 25.8 (3.4) | 25.9 (3.5) | 25.6 (3.3) | 25.6 (3.2) | 25.6 (3.3) | 25.2 (4.2) | 25.1 (4.4) | 24.8 (4.2) | 24.7 (4.0) | 24.9 (4.3) | |
| Mean (SD) cholesterol (mmol/l) | 6.4 (1.1) | 6.3 (1.0) | 6.4 (1.1) | 6.2 (1.1) | 6.4 (1.1) | 6.6 (1.3) | 6.6 (1.2) | 6.5 (1.2) | 6.4 (1.2) | 6.6 (1.2) | |
| Mean (SD) systolic blood pressure (mm Hg) | 141.1 (21.1) | 139.9 (21.6) | 137.9 (20.6) | 139.3 (22.5) | 137.5 (20.1) | 136.8 (22.5) | 135.7 (21.8) | 133.7 (20.7) | 132.3 (19.4) | 134.5 (21.3) | |
| Mean (SD) diastolic blood pressure (mm Hg) | 89.3 (11.2) | 90.2 (12.3) | 88.8 (11.4) | 90.6 (12.4) | 88.3 (11.1) | 84.1 (11.3) | 84.3 (11.3) | 84.1 (11.4) | 83.3 (11.1) | 84.5 (11.5) | |
| Pulse pressure (mm Hg) | 51.9 (15.0) | 49.8 (14.2) | 49.1 (13.8) | 48.8 (13.8) | 49.2 (13.8) | 52.7 (16.1) | 51.5 (15.5) | 49.7 (14.5) | 49.0 (13.1) | 50.0 (15.2) | |
| No of participants | 7068 | 1405 | 571 | 128 | 443 | 6003 | 2226 | 1452 | 498 | 954 | |
| Headache | NA | 100 | 100 | 100 | 100 | NA | 100 | 100 | 100 | 100 | |
| Pain, unilateral | NA | 30 | 58 | 81 | 51 | NA | 27 | 67 | 80 | 60 | |
| Nausea/vomiting | NA | 4 | 37 | 66 | 28 | NA | 9 | 62 | 80 | 53 | |
| Photophobia | NA | 7 | 46 | 68 | 40 | NA | 7 | 59 | 65 | 56 | |
| Visual symptoms | NA | NA | 64 | NA | 82 | NA | NA | 55 | NA | 84 | |
| Sensory symptoms | NA | NA | 22 | NA | 28 | NA | NA | 23 | NA | 35 | |
| Elementary or less education | 33 | 36 | 38 | 33 | 39 | 55 | 54 | 55 | 50 | 57 | |
| Hypertension treatment | 7 | 8 | 8 | 9 | 8 | 11 | 12 | 10 | 8 | 11 | |
| Current smoking | 55 | 56 | 56 | 52 | 58 | 41 | 40 | 40 | 36 | 42 | |
| Former smoking | 23 | 24 | 24 | 25 | 23 | 15 | 15 | 16 | 18 | 16 | |
| Medical hormone use | 0.3 | 0.4 | 1 | 1 | 1 | 5 | 7 | 9 | 8 | 9 | |
| Oral contraceptive use | NA | NA | NA | NA | NA | 3 | 5 | 6 | 6 | 5 | |
| Diabetes | 4 | 5 | 4 | 6 | 4 | 3 | 3 | 3 | 2 | 4 | |
| History of coronary event¶ | 3 | 2 | 1 | 0 | 1 | 1 | 0.4 | 0.4 | 0.4 | 0.4 | |
NA=not applicable.
*Of original 18 903 participants, 68 (0.36%) were lost to follow-up and 110 (0.58%) had missing data on blood pressure, cholesterol concentration, or BMI.
†Headache without or with one symptom of migraine once or more a month.
‡2-3 of unilateral, photophobia, nausea symptoms.
§Migraine with visual or sensory symptoms, or both. Participants with symptoms of migraine without aura and migraine with aura were classified as migraine with aura.
¶Myocardial infarction, angioplasty, or coronary artery bypass graft.