From: Incidence and factors associated with postoperative headache among adult elective surgical patients at the university of gondar comprehensive specialized hospital, northwest Ethiopia, 2022: a prospective follow-up study
Days
Frequency
Percentage (%)
Day one
184
(43.8)
Day two
42
(10)
Day three
2
(0.5)
Over all
228
(54.3)
Severity of postoperative headache
Mild
60
(14.3)
Moderate
89
(21.2)
Severe
79
(18.8)