Table 2.
All-cause and migraine-related healthcare utilization during follow-up
| Healthcare utilization | All study patients (N = 284,719) |
|---|---|
| All-cause | |
| Inpatient admission | 58,173 (20.4%) |
| PPPM admissions | 0.3 ± 1.0 |
| ER visit | 140,870 (49.5%) |
| PPPM visits | 1.4 ± 3.5 |
| Outpatient office visit | 283,391 (99.5%) |
| PPPM visits | 20.0 ± 18.3 |
| Migraine-related | |
| Inpatient admission | 18,536 (6.5%) |
| PPPM admissions | 0.1 ± 0.3 |
| ER visit | 32,957 (11.6%) |
| PPPM visits | 0.2 ± 0.9 |
| Outpatient office visit | 237,078 (83.3%) |
| PPPM visit | 2.7 ± 3.7 |
| Neurologist | 109,623 (38.5%) |
| PPPM visit | 1.0 ± 2.2 |
| Neuroimaging scan | 32,657 (11.5%) |
| PPPM scans | 0.1 ± 0.4 |
| Office visit after migraine-related ER visit | 22,988 (8.1%) |
| Within 2-weeks | 8379 (36.5%) |
| Neurologist visit after migraine-related ER visit | 10,967 (3.9%) |
| Within 2-weeks | 3314 (30.2%) |
Values are given as the mean ± SD or as a number (n) with the percentage in parenthesis
ER Emergency room, PPPM per patient per month