Table 2.
Clinical characteristics of refractory COVID or post-COVID headache and therapeutic response to indomethacin in 29 migraine patients and 8 without previous headache
| Characteristics | Groups | p value | |||
|---|---|---|---|---|---|
| Migraineurs | Without previous headache | ||||
| n | % | n | % | ||
| Headache onset | |||||
| Within 72 h | 21 | 72.4 | 5 | 62.5 | 0.672 |
| After 10 days | 8 | 27.6 | 3 | 37.5 | |
| Improvement over 50% with 3 days | |||||
| Yes | 28 | 95.6 | 8 | 100.0 | 1.000 |
| No | 1 | 3.4 | 0 | 0.0 | |
| Asymptomatic with 5 days | |||||
| Yes | 20 | 69.0 | 6 | 75.0 | 1.000 |
| No | 9 | 31.0 | 2 | 25.0 | |
| They received hospital care | |||||
| Yes | 4 | 13.8 | 5 | 62.5 | 0.011 |
| No | 25 | 86.2 | 3 | 37.5 | |
p values were calculated using Fisher’s exact test