Table 1 General Characteristics of the Participants.
From: Bidirectional association between asthma and migraines in adults: Two longitudinal follow-up studies
Characteristics | Study I | Study II | ||||
|---|---|---|---|---|---|---|
Asthma (n, %) | Control I (n, %) | P-value | Migraine (n, %) | Control II (n, %) | P-value | |
Age (years) | 1.000 | 1.000 | ||||
20–24 | 4,464 (3.9) | 4,464 (3.9) | 1,862 (5.2) | 7,448 (5.2) | ||
25–29 | 7,142 (6.3) | 7,142 (6.3) | 2,459 (6.8) | 9,836 (6.8) | ||
30–34 | 10,653 (9.4) | 10,653 (9.4) | 3,294 (9.1) | 13,176 (9.1) | ||
35–39 | 10,723 (9.5) | 10,723 (9.5) | 3,801 (10.5) | 15,204 (10.5) | ||
40–44 | 10,477 (9.6) | 10,477 (9.6) | 4,311 (12.0) | 17,244 (12.0) | ||
45–49 | 10,907 (9.4) | 10,907 (9.4) | 4,629 (12.8) | 18,516 (12.8) | ||
50–54 | 10,652 (9.5) | 10,652 (9.5) | 3,905 (10.8) | 15,620 (10.8) | ||
55–59 | 10,214 (9.0) | 10,214 (9.0) | 2,971 (8.2) | 11,884 (8.2) | ||
60–64 | 10,314 (9.1) | 10,314 (9.1) | 2,696 (7.5) | 10,784 (7.5) | ||
65–69 | 10,247 (9.1) | 10,247 (9.1) | 2,467 (6.8) | 9,868 (6.8) | ||
70–74 | 8,075 (7.1) | 8,075 (7.1) | 1,818 (5.0) | 7,272 (5.0) | ||
75–79 | 5,122 (4.5) | 5,122 (4.5) | 1,113 (3.1) | 4,452 (3.1) | ||
80–84 | 2,811 (2.5) | 2,811 (2.5) | 491 (1.4) | 1,964 (1.4) | ||
85+ | 1,258 (1.1) | 1,258 (1.1) | 227 (0.6) | 908 (0.6) | ||
Sex | 1.000 | 1.000 | ||||
Male | 42,172 (37.3) | 42,172 (37.3) | 9,336 (25.9) | 37,344 (25.9) | ||
Female | 70,887 (62.7) | 70,887 (62.7) | 26,708 (74.1) | 106,832 (74.1) | ||
Income | 1.000 | 1.000 | ||||
1 (lowest) | 18,702 (16.5) | 18,702 (16.5) | 6,082 (16.9) | 24,328 (16.9) | ||
2 | 16,791 (14.9) | 16,791 (14.9) | 5,627 (15.6) | 22,508 (15.6) | ||
3 | 20,207 (17.9) | 20,207 (17.9) | 6,589 (18.3) | 26,356 (18.3) | ||
4 | 25,745 (22.8) | 25,745 (22.8) | 8,109 (22.5) | 32,436 (22.5) | ||
5 (highest) | 31,614 (28.0) | 31,614 (28.0) | 9,637 (26.7) | 38,548 (26.7) | ||
Region of residence | 1.000 | 1.000 | ||||
Urban | 51,947 (49.5) | 51,947 (49.5) | 15,554 (43.2) | 62,216 (43.2) | ||
Rural | 61,112 (54.1) | 61,112 (54.1) | 20,490 (56.8) | 81,960 (56.8) | ||
Depression | 13,047 (11.5) | 9,404 (8.3) | <0.001* | 6,587 (18.3) | 12,661 (8.8) | <0.001* |
CCI (score)† | <0.001* | <0.001* | ||||
0 | 40,492 (35.8) | 53,529 (47.4) | 12,614 (35.0) | 69,552 (48.2) | ||
1 | 16,714 (14.8) | 14,827 (13.1) | 5,062 (14.0) | 20,465 (14.2) | ||
≥2 | 55,853 (49.4) | 44,703 (39.5) | 18,368 (51.0) | 54,159 (37.6) | ||
Asthma | 113,059 (100.0) | 0 (0.0) | <0.001* | 5,548 (15.4) | 15,271 (10.6) | <0.001* |
Migraine | 6,017 (5.3) | 3,806 (3.4) | <0.001* | 36,044 (100.0) | 0 (0.0) | <0.001* |
