Table 2 Characteristics of the medical facility and imaging tests in the headache cohort
|  | Total patients N = 989,514 |
|---|---|
Medical facility visited by patients, n (%) | |
 CP (0–19 beds) | 761,702 (77.0) |
 HP (20–99 beds) | 46,431 (4.7) |
 HP (100–199 beds) | 56,793 (5.7) |
 HP (200–299 beds) | 27,197 (2.7) |
 HP (300–499 beds) | 60,194 (6.1) |
 HP (≥ 500 beds) | 48,627 (4.9) |
Imaging test (CT and/or MRI) undergone by patients, n (%) | |
 Total | 299,707 (30.3) |
 At CP | 153,734 (20.2)a |
 At HP | 172,856 (72.7)b |