Table 4.

Shapiro–Wilks and Friedman’s tests on pain scores and migraine-associated symptom scores

	On admission (1)		Immediately after treatment (2)		2 Hours after treatment (3)		24 hours after treatment (4)
	Mean (SD)	Median (SIR)	Mean (SD)	Median (SIR)	Mean (SD)	Median (SIR)	Mean (SD)	Median (SIR)	Friedman test (Chi-Square, df, p)	Wilcoxon pairwise comparisons
Pain Score	5.9(1.8)	6(5–7)	3.1(2.7)	3(0.6–5)	2.4(2.3)	2(0.3–3.5)	2.0(2.7)	0(0–4)	25.3(3),p < 0.001	1 < 2; 1 < 3; 1 < 4
Symptom Score	4.3(2.4)	5(3.2–5)	1.9(1.8)	2(0–3.4)	0.9(1.2)	0(0–2)	0.7(1.4)	0(0–1)	32.9(3),p < 0.001	1 < 2; 1 < 3; 1 < 4

SD, standard deviation; SIR, semi-Interquartile Range; df, degree of freedom.