Table 1. Clinical characteristics of individuals with migraine in the 2009 Korean Headache Survey and the 2018 Korean Sleep-Headache Survey.

	2009 (n=91)	2018 (n=114)	p†
Age, years	41.8±11.2	43.1±12.8	0.465
Monthly headache frequency	1.0 [0.4–4.0]	0.8 [0.3–3.0]	0.583
Headache severity, VAS score	6.0 [5.0–7.0]	6.0 [5.0–7.0]	0.747
Headache intensity
Mild	20 (22.0)	19 (16.7)	0.336*
Moderate	58 (63.7)	73 (64.0)
Severe	13 (14.3)	22 (19.3)
Unilateral location	50 (54.9)	78 (60.9)	0.529
Pulsating quality	51 (56.0)	89 (78.1)	0.365
Aggravation during routine physical activity	62 (68.1)	56 (49.1)	0.005
Nausea	82 (90.1)	102 (89.5)	0.784
Vomiting	28 (30.8)	52 (45.6)	0.028
Photophobia	41 (45.1)	44 (38.6)	0.330
Phonophobia	54 (59.3)	63 (55.3)	0.737
Osmophobia	47 (51.6)	45 (39.5)	0.104

Data are mean±standard-deviation, median [interquartile range], or n (%) values.

^*Comparison of the proportion with moderate-to-severe headache intensity, ^†Categorical variables were compared using linear regression analyses while adjusting for sex and age (in years, as a continuous variable), and numerical variables were compared using logistic regression analyses while adjusting for age and sex.

VAS: visual analogue scale.