Table 1 Baseline characteristics of study participants according to migraine status
No headache N = 4,457 | Participants with migraine | |||
|---|---|---|---|---|
Definite N = 1,265 | Probable N = 3,144 | All N = 4,409 | ||
Age strata | ||||
35-44 | 568 (12.7) | 363 (28.7) | 837 (26.6) | 1,200 (27.2) |
45-54 | 1,430 (32.1) | 617 (48.8) | 1,388 (44.1) | 2,005 (45.5) |
55-64 | 1,593 (35.7) | 241 (19.1) | 769 (24.5) | 1,010 (22.9) |
65-74 | 866 (19.4) | 44 (3.5) | 150 (4.8) | 194 (4.4) |
Female sex | 1,698 (38.1) | 1,105 (87.4) | 2,256 (71.8) | 3,361 (76.2) |
Race | ||||
White | 2,186 (49.9) | 618 (49.2) | 1,596 (51.3) | 2,214 (50.7) |
Mixed (Pardo) | 1,266 (28.9) | 352 (28.0) | 907 (29.2) | 1,259 (28.8) |
Black | 753 (17.2) | 244 (19.4) | 506 (16.3) | 750 (17.2) |
Other | 178 (4.1) | 42 (3.3) | 102 (3.3) | 144 (3.3) |
Educational level | ||||
Lower than High School | 772 (17.3) | 122 (9.6) | 352 (11.2) | 474 (10.8) |
High school | 1,496 (33.6) | 537 (42.5) | 1,207 (38.4) | 1,744 (39.6) |
College or above | 2,189 (49.1) | 606 (47.9) | 1,585 (50.4) | 2,191 (49.7) |
Net family income | ||||
< USD 1245 | 1,263 (28.5) | 399 (31.6) | 874 (27.9) | 1,273 (29.0) |
USD 1245 – 3319 | 1,824 (41.1) | 591 (46.8) | 1,488 (47.5) | 2,079 (47.3) |
> = USD 3320 | 1,348 (30.4) | 272 (21.6) | 770 (24.6) | 1,042 (23.7) |
Stressful life events | ||||
Any event | 1,754 (39.4) | 638 (50.4) | 1,492 (47.5) | 2,130 (48.3) |
Financial hardship | 738 (16.6) | 382 (30.2) | 827 (26.3) | 1,209 (27.4) |
Hospitalization | 418 (9.4) | 167 (13.2) | 383 (12.2) | 550 (12.5) |
Death of a close relative | 521 (11.7) | 139 (11.0) | 342 (10.9) | 481 (10.9) |
Robbery | 283 (6.3) | 86 (6.8) | 228 (7.3) | 314 (7.1) |
End of a love relationship | 248 (5.6) | 88 (7.0) | 227 (7.2) | 315 (7.1) |
Religious activity in the past year | 2,951 (66.2) | 999 (79.0) | 2,301 (73.2) | 3,300 (74.9) |
Major depressive disorder | 101 (2.3) | 129 (10.2) | 242 (7.7) | 371 (8.4) |
Migraine frequency | ||||
Less than once per month | 291 (23.1) | 1,384 (44.1) | 1,675 (36.1) | |
From once per month to once per week | 573 (45.4) | 1,140 (36.3) | 1,713 (38.9) | |
More than once per week | 397 (31.5) | 615 (19.6) | 1,012 (23.0) | |