Clinical feature | 30 minute response | 2 hour response | ||
---|---|---|---|---|
Nil or mild headache | Nil headache | Nil or mild headache | Nil headache | |
Values are relative risk (95% confidence interval). Treatment response at each time epoch was measured by two criteria: (a) initial severity moderate or severe to subsequent intensity nil or mild; (b) stricter criteria of initial severity moderate to severe to subsequent nil headache. | ||||
Aura | 1.17 (0.79 to 1.74) | 1.21 (0.59 to 2.48) | 0.97 (0.82 to 1.15) | 1.47 (0.98 to 2.20) |
Unilateral headache | 1.25 (0.83 to 1.89) | 1.83 (0.84 to 3.99) | 1.00 (0.86 to 1.16) | 1.61 (1.00 to 2.59) |
Nausea | 1.10 (0.74 to 1.64) | 1.48 (0.74 to 2.98) | 0.98 (0.84 to 1.15) | 1.59 (1.04 to 2.53) |
Severity | 0.76 (0.52 to 1.17) | 0.48 (0.21 to 1.09) | 1.04 (0.87 to 1.24) | 1.17 (0.71 to 1.93) |