From: Chronic Headache Education and Self-Management Study (CHESS): a process evaluation
*IMD | Number of practices | Patient Population of practices | Size of practices by patient population | identified at practices and contacted | interested | Interested & eligible | Eligible & consented | Eligible & randomised | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec | N | Tot N | Median | IQR | N | % | N | % | N | % | N | % | N | % |
1 | 16 | 125,898 | 7199 | (5103, 9240) | 2919 | 2 | 152 | 5 | 77 | 51 | 51 | 66 | 46 | 60 |
2 | 26 | 217,409 | 8732 | (6343, 10,841) | 5425 | 3 | 244 | 5 | 115 | 47 | 78 | 68 | 73 | 63 |
3 | 15 | 160,651 | 7852 | (7232, 12,327) | 2816 | 2 | 175 | 5 | 77 | 44 | 62 | 81 | 56 | 73 |
4 | 18 | 140,742 | 6629 | (5377, 10,045) | 2913 | 2 | 201 | 7 | 93 | 46 | 67 | 72 | 64 | 69 |
5 | 21 | 194,130 | 9250 | (5582, 11,300) | 3958 | 2 | 261 | 7 | 129 | 49 | 88 | 68 | 84 | 65 |
6 | 16 | 154,602 | 10,048 | (5498, 12,515) | 3169 | 2 | 230 | 7 | 102 | 44 | 70 | 69 | 64 | 63 |
7 | 9 | 58,016 | 4820 | (3317, 9000) | 1344 | 2 | 120 | 9 | 44 | 37 | 35 | 80 | 29 | 66 |
8 | 13 | 123,674 | 9474 | (6821, 12,215) | 2395 | 2 | 239 | 10 | 127 | 53 | 99 | 78 | 98 | 77 |
9 | 14 | 172,112 | 12,016 | (7983, 16,465) | 2483 | 1 | 248 | 10 | 122 | 49 | 99 | 81 | 93 | 76 |
10 | 16 | 176,452 | 11,809 | (8225, 14,084) | 3598 | 2 | 308 | 9 | 148 | 48 | 106 | 72 | 99 | 67 |
All | 164 | 1,523,686 | 8979 | (5760, 11,986) | 31,020 | 2 | 2178 | 7 | 1034 | 47 | 755 | 73 | 706a | 68 |