Table 2.
Proportions of respondents traversing barriers to care among the eligible migraine sample
| US (N = 1494) |
Canada (N = 1388) |
Germany (N = 1662) |
France (N = 1284) |
UK (N = 1384) |
Japan (N = 1118) |
Totala (N = 8330) |
|
|---|---|---|---|---|---|---|---|
| Barrier 1: Current consulter b | |||||||
| Total sample consulting, % (95% CI) |
n = 578 38.7 (36.2, 41.2) |
n = 424 30.5 (28.1, 33.0) |
n = 582 35.0 (32.7, 37.3) |
n = 623 48.5 (45.8, 51.3) |
n = 422 30.5 (28.1, 32.9) |
n = 297 26.6 (24.0, 29.2) |
n = 2926 35.1 (34.1, 36.2) |
| Chi2 (P value) | - |
21.0 (< 0.001) |
4.6 (0.033) |
27.2 (< 0.001) |
21.3 (< 0.001) |
42.2 (< 0.001) |
171.2 (< 0.001) |
| Barrier 2: Accurate diagnosis (EM or CM) | |||||||
| Total sample consulting and diagnosed, % (95% CI) |
n = 404 27.0 (24.8, 29.3) |
n = 280 20.2 (18.1, 22.3) |
n = 385 23.2 (21.1, 25.2) |
n = 392 30.5 (28.0, 33.1) |
n = 279 20.2 (18.0, 22.3) |
n = 178 15.9 (13.8, 18.1) |
n = 1918 23.0 (22.1, 23.9) |
| Chi2 (P value) | - |
18.8 (< 0.001) |
6.3 (0.012) |
4.1 (0.043) |
18.8 (< 0.001) |
45.7 (< 0.001) |
99.0 (< 0.001) |
| Those consulting that are diagnosed, % (95% CI) |
69.9 (66.2, 73.7) |
66.0 (61.5, 70.6) |
66.2 (62.3, 70.0) |
62.9 (59.1, 66.7) |
66.1 (61.6, 70.7) |
59.9 (54.3, 65.5) |
65.6 (63.8, 67.3) |
| Chi2 (P value) | - |
1.7 (0.195) |
1.9 (0.172) |
6.5 (0.011) |
1.6 (0.204) |
8.7 (0.003) |
11.1 (0.050) |
| Barrier 3: Appropriate treatment | |||||||
| Those consulting and diagnosed that are treating, % (95% CI) |
n = 215 53.2 (48.3, 58.1) |
n = 127 45.4 (39.5, 51.2) |
n = 180 46.8 (41.8, 51.8) |
n = 184 46.9 (42.0, 51.9) |
n = 164 58.8 (53.0, 64.6) |
n = 85 47.8 (40.3, 55.2) |
n = 955 49.8 (47.6, 52.0) |
| Chi2 (P value) | - |
4.1 (0.043) |
3.3 (0.069) |
3.1 (0.077) |
2.1 (0.150) |
1.5 (0.224) |
16.1 (0.007) |
| Traversing all 3 barriers | |||||||
| Total sample consulting, diagnosed, and treating, % (95% CI) |
14.4 (12.6, 16.2) |
9.1 (7.6, 10.7) |
10.8 (9.3, 12.3) |
14.3 (12.4, 16.3) |
11.8 (10.1, 13.6) |
7.6 (6.1, 9.2) |
11.5 (10.8, 12.2) |
| Chi2 (P value) | - |
18.9 (< 0.001) |
9.1 (0.003) |
0.002 (0.964) |
4.1 (0.044) |
29.0 (< 0.001) |
47.6 (< 0.001) |
CM, chronic migraine; EM, episodic migraine; UK, United Kingdom; US, United States
Unless otherwise specified, Chi2 P values represent a comparison between the US and other countries
aChi2 P values are across all 6 countries
bCurrent consulters included respondents within the migraine population who had their migraine managed by a health care professional other than an emergency department or urgent care professional