From: Overall trend towards headache remission during the COVID-19 pandemic among Chinese patients with pre-existing headache highlights the role of family support
variables
Before COVID-19
(n = 2806)
During COVID-19
P value
Headache severity
4.290 ± 1.680
4.110 ± 1.609
< 0.001
Headache duration (h)
4.033 ± 7.325
3.414 ± 6.859
Headache days per month
2.092 ± 3.694
1.788 ± 2.989