Table 1.
Visits of adult patients with migraine prescribed preventive medications, from the National Ambulatory Medical Care Survey (2006–2009).
| 2006 | 2007 | 2008 | 2009 | Total | |
|---|---|---|---|---|---|
| Visits of adult patients in all visits, unweighted no. | 24,282 | 27,169 | 23,561 | 27,038 | 102,050 |
| Visits of adult patients with migraine, unweighted no. | 317 | 274 | 305 | 356 | 1252 |
| Visits of adult patients with migraine, weighted no. | 6,500,634 | 6,099,149 | 5,905,930 | 8,614,391 | 27,120,104 |
| Primary or specialty care visitsa by adults with migraine, weighted no. | 4,457,908 | 5,414,762 | 5,382,197 | 7,746,559 | 12,330,600 |
| Visits of adults with migraine prescribed preventive medications, weighted no. | 1,460,010 | 1,911,941 | 1,984,655 | 2,989,066 | 8,345,672 |
| Visits of adults with migraine prescribed preventive medications, weighted % | 32.8 | 35.3 | 36.9 | 38.6 | 36.3 |
a
Primary care visits were defined as visits to physicians in general and family practices and internal medicine. Specialty care visits were defined as visits to physicians in psychiatry and neurology. The following specialty groups were excluded: pediatrics, general surgery, obstetrics and gynecology, orthopedic surgery, cardiovascular diseases, dermatology, urology, ophthalmology, otolaryngology, other specialties, and oncology.