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Table 2 Distribution of headache intensity and frequency, according to the number of cranial autonomic symptoms

From: Cranial autonomic symptoms in episodic and chronic migraine: a cross sectional study in Iran

Characteristic CAS P value
No cas 1 > 1
Headache intensity, median (IQR) 8 (6–9) 8 (6–9) 8 (7–10) < 0.001
Headache frequency, median (IQR) 8 (4–15) 10 (5–15.25) 12 (6–20) < 0.001