Table 4.

Risk factors for anxiety in patients with headache complaints analyzed by stepwise liner logistic regression

Variables	P	OR	95% CI
Headache duration
<30 min		1.000
30–59 min	0.034	3.049	1.085–8.569
1–12 h	0.192	0.607	0.287–1.285
13–24 h	0.779	0.853	0.282–2.581
25–72 h	0.555	0.676	0.184–2.481
>72 h	0.374	1.701	0.527–5.487
Precipitating factor
No		1.000
Yes	0.010	2.224	1.213–4.076
Headache-related disability
No		1.000
Mild	0.234	1.684	0.713–3.977
Moderate	0.352	0.551	0.157–1.931
Severe	0.001	3.388	1.600–7.177
Poor sleep complaints
No		1.000
Yes	0.001	2.661	1.464–4.839

OR: Odds ratio; CI: Confidence interval.