Table 4.

Logistic regression analysis of associations between sociodemographic/anthropometric variables and common headache types

		Bivariable		Multivariable
		OR [95% CI]	p-value	adjusted OR [95% CI]	p-value
		Migraine
Gender	Male	reference	–	reference	–
	Female	1.66 [1.27–2.17]	< 0.001	1.77 [1.32–2.36]	< 0.001*
Age (increase)	per year	0.85 [0.79–0.93]	< 0.001	0.84 [0.77–0.91]	< 0.001*
Marital status	Single	reference	–	reference	–
	Married	3.60 [0.50–25.7]	0.201	3.65 [0.50–26.5]	0.200
BMI (increase)	per kg/m2	0.97 [0.93–1.02]	0.007	1.00 [0.96–1.05]	0.864
		Tension-type headache
Gender	Male	reference	–	reference	–
	Female	1.09 [0.88–1.36]	0.410	1.16 [0.92–1.47]	0.204
Age (increase)	per year	1.08 [1.01–1.15]	0.031	1.07 [1.005–1.15]	0.035*
Marital status	Single	reference	–	reference	–
	Married	0.28 [0.03–2.72]	0.274	0.25 [0.03–2.44]	0.232
BMI (increase)	per kg/m2	1.03 [0.99–1.07]	0.157	1.04 [0.996–1.08]	0.075
		probable Medication-overuse headaches
Gender	Male	reference	–	reference	–
	Female	1.49 [0.27–8.19]	0.410	1.42 [0.23–8.65]	0.705
Age (increase)	per year	0.85 [0.51–1.44]	0.554	0.84 [0.50–1.43]	0.528
BMI (increase)	per kg/m2	0.93 [0.69–1.25]	0.623	0.95 [0.69–1.29]	0.733

BMI: Body mass index, CI: confidence interval, OR: odds ratio; *: significant association