Table 6.
Overall visits per patient-year of the primary cohort stratified by quartiles
| Visits (overall) | q1 | q2 | q3 | q4 | p-value* |
|---|---|---|---|---|---|
| Cut-off (visits per patient-year) | < 7.03 | 7.03–12.22 | 12.23–19.79 | > 19.79 | – |
| Follow-up time, years (median) | 3.25 | 3.35 | 3.18 | 2.64 | < 0.001 |
| N | 3990 | 3992 | 3991 | 3991 | – |
| Female (%) | 73.7% | 77.1% | 81.5% | 83.9% | < 0.001 |
| Age, years (mean) | 36.06 | 39.07 | 40.14 | 40.75 | < 0.001 |
| Acute prescription only, % | 34.1% | 34.5% | 38.2% | 38.8% | < 0.001 |
| No prescription, % | 58.6% | 54.0% | 48.6% | 41.9% | |
| Prophylactic prescription, % | 7.3% | 11.5% | 13.2% | 19.3% | |
| Botulinum toxin A, % | 0.1% | 0.1% | 0.3% | 0.9% | < 0.001 |
| Prophylactic treatment line 0 | 92.68% | 88.53% | 86.82% | 80.68% | < 0.001 |
| 1 | 6.64% | 9.17% | 10.52% | 14.48% | |
| 2 | 0.65% | 2.00% | 2.08% | 3.36% | |
| ≥3 | 0.03% | 0.30% | 0.58% | 1.48% |
*P-value for test for all quartiles equal